photosynthesis

calvin cycle

The Calvin cycle occurs in the second stage of photosynthesis. This stage takes place in the stroma of the chloroplast. In the Calvin cycle, carbon dioxide is used to produce glucose (sugar) using the energy stored in ATP and NADPH. The energy is released from these molecules when ATP loses phosphate (Pi ) to become ADP and NADPH loses hydrogen (H) to become NADP+ .

autotrophs vs. heterotrophs

Types of organisms that make glucose by photosynthesis are pictured in Figure 4.7. They include plants, plant-like protists such as algae, and some kinds of bacteria. Living things that make glucose are called autotrophs ("self feeders"). All other living things obtain glucose by eating autotrophs (or organisms that eat autotrophs). These living things are called heterotrophs ("other feeders").

textbook_image

site of photosynthesis the chloroplast

In plants and algae, photosynthesis takes place in chloroplasts. (Photosynthetic bacteria have other structures for this purpose.) A chloroplast is a type of plastid, or plant organelle. It contains the green pigment known as chlorophyll. The presence of chloroplasts in plant cells is one of the major ways they differ from animal cells. You can see chloroplasts in plant cells Figure 4.8.

textbook_image

chloroplast structure

The structure of a chloroplast is shown in Figure 4.9. The chloroplast is surrounded by two membranes. Inside the chloroplast are stacks of flattened sacs of membrane, called thylakoids. The thylakoids contain chlorophyll. Surrounding the thylakoids is a space called the stroma. The stroma is filled with watery ("aqueous") fluid.

how the chloroplast gets raw materials

In plants, most chloroplasts are found in the leaves. Therefore, all the raw materials needed for photosynthesis must be present in the leaves. These materials include light, water, and carbon dioxide. The shape of the leaves gives them a lot of surface area to absorb light for photosynthesis. Roots take up water from the soil. Stems carry the water from the roots to the leaves. Carbon dioxide enters the leaves through tiny openings called stomata. (The oxygen released during photosynthesis also exits the leaves through the stomata.)

making glucose

Chemical energy that organisms need comes from food. The nearly universal food for life is the sugar glucose. Glucose is a simple carbohydrate with the chemical formula C6 H12 O6 . The glucose molecule stores chemical energy in a concentrated, stable form. In your body, glucose is the form of energy that is carried in your blood and taken up by each of your trillions of cells.

what is photosynthesis

What is the source of glucose for living things? It is made by plants and certain other organisms. The process in which glucose is made using energy in light is photosynthesis. This process requires carbon dioxide and water. It produces oxygen in addition to glucose. Photosynthesis consists of many chemical reactions. Overall, the reactions of photosynthesis can be summed up by this chemical equation: 6CO2 + 6H2 O + light energy ! C6 H12 O6 + 6O2 In words, this means that six molecules of carbon dioxide (CO2 ) combine with six molecules of water (H2 O) in the presence of light energy. This produces one molecule of glucose (C6 H12 O6 ) and six molecules of oxygen (O2 ). Use this interactive animation to learn more about photosynthesis: Click on this link for a song about photosynthesis to reinforce the basic ideas: MEDIA Click image to the left or use the URL below. URL:

stages of photosynthesis

Photosynthesis occurs in two stages, called the light reactions and the Calvin cycle. Figure 4.10 sums up what happens in these two stages. Both stages are described below.

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light reactions

The light reactions occur in the first stage of photosynthesis. This stage takes place in the thylakoid membranes of the chloroplast. In the light reactions, energy from sunlight is absorbed by chlorophyll. This energy is temporarily transferred to two molecules: ATP and NADPH. These molecules are used to store the energy for the second stage of photosynthesis. The light reactions use water and produce oxygen.

instructional diagrams

description_image

This diagram depicts photosynthesis. Photosynthesis is the process in which plants synthesize glucose. The process uses carbon dioxide and water and also produces oxygen. The plant gets energy from sunlight using a green pigment called chlorophyll. Photosynthesis changes light energy to chemical energy. The chemical energy is stored in the bonds of glucose molecules. Glucose is used for energy by the cells of almost all living things. Plants make their own glucose.

description_image

This diagram shows the process of photosynthesis, the process of how plants convert sunlight into energy. The plant uses sunlight and water to make glucose and creates oxygen as a waste product. Chemical energy is stored in the bonds of glucose molecules.

description_image

This diagram represents photosynthesis. Photosynthesis the process in which plants synthesizes glucose. During photosynthesis, it gets its energy from the sun (light energy.) Photosynthesis changes light energy (the energy the plant receives from the sun) to chemical energy. This process uses carbon dioxide and water. In return, it produces oxygen and carbohydrates. It does this by the energy it receives from the sun. The equation for photosynthesis is 6CO2 + 6H2 O + Light Energy C6 H12 O6 + 6O2.

questions

Raw materials needed for photosynthesis include

a. water

b. sugar

c. carbon dioxide

-->  d. two of the above

In plants, most chloroplasts are found in the

a. fruits

b. stems

c. roots

-->  d. leaves

The first stage of photosynthesis takes place inside structures called

a. stroma

b. stomata

-->  c. thylakoids

d. none of the above

During the Calvin cycle

a. chlorophyll absorbs light

b. energy is stored in NADPH

c. ATP forms from ADP

-->  d. none of the above

The light reactions of photosynthesis produce

a. glucose

-->  b. oxygen

c. water

d. NADP+

_Only heterotrophs need food for energy.

a. true

-->  b. false

_ATP is the concentrated form of energy that is carried by the blood and taken up by cells.

a. true

-->  b. false

_Producing one molecule of glucose requires six molecules of water.

-->  a. true

b. false

_Some protists can carry out photosynthesis.

-->  a. true

b. false

All living things need chemical energy for life processes.

-->  a. true

b. false

The chemical formula for glucose is C6H12O6.

-->  a. true

b. false

_Thylakoids are stacks of flattened sacs in a chloroplast.

-->  a. true

b. false

Organisms that make food for themselves and other living things are called heterotrophs.

a. true

-->  b. false

_All photosynthesis takes place in chloroplasts.

a. true

-->  b. false

_Each chloroplast is surrounded by two membranes.

-->  a. true

b. false

The role of chlorophyll in photosynthesis is providing carbon for glucose.

a. true

-->  b. false

The second stage of photosynthesis takes place in the cytoplasm.

a. true

-->  b. false

_any organism that uses energy to make glucose

a. light reactions

b. heterotroph

c. Calvin cycle

d. light

e. chloroplast

-->  f. autotroph

g. chemical

_second stage of photosynthesis

a. light reactions

b. heterotroph

-->  c. Calvin cycle

d. light

e. chloroplast

f. autotroph

g. chemical

_form of energy needed to fuel life processes in all living things

a. light reactions

b. heterotroph

c. Calvin cycle

d. light

e. chloroplast

f. autotroph

-->  g. chemical

_plant organelle where photosynthesis takes place

a. light reactions

b. heterotroph

c. Calvin cycle

d. light

-->  e. chloroplast

f. autotroph

g. chemical

_form of energy needed for photosynthesis

a. light reactions

b. heterotroph

c. Calvin cycle

-->  d. light

e. chloroplast

f. autotroph

g. chemical

_any organism that obtains energy from other living things

a. light reactions

-->  b. heterotroph

c. Calvin cycle

d. light

e. chloroplast

f. autotroph

g. chemical

_first stage of photosynthesis

-->  a. light reactions

b. heterotroph

c. Calvin cycle

d. light

e. chloroplast

f. autotroph

g. chemical

The chemical formula for glucose is

-->  a. C6 H12 O6 .

b. C12 H6 O12 .

c. C6 H6 O12 .

d. none of the above

In the reactions of photosynthesis, how many molecules of carbon dioxide are needed to produce one molecule of glucose?

a. one

-->  b. six

c. nine

d. twelve

Types of organisms that carry out photosynthesis include

a. bacteri

b. algae.

c. plants.

-->  d. all of the above

The function of thylakoids is to

-->  a. capture light energy.

b. produce glucose molecules.

c. release energy from ATP and NADPH.

d. all of the above

The first stage of photosynthesis requires

a. carbon dioxide.

-->  b. water.

c. oxygen.

d. none of the above

The second stage of photosynthesis requires

a. light.

b. oxygen.

c. water.

-->  d. carbon dioxide.

What is the function of stomata in plant leaves?

-->  a. They let leaves exchange gases with the air.

b. They absorb light from the sun.

c. They allow water to enter the leaves.

d. none of the above

diagram questions

question_image

Identify the gas R.

-->  a. OXYGEN

b. NITROGEN

c. CARBON DIOXIDE

d. HYDROGEN

question_image

Where are the roots?

a. T

-->  b. L

c. R

d. Y

question_image

With which letter are chloroplasts represented in this diagram?

a. X

-->  b. P

c. E

d. M

question_image

What is being released as a byproduct in V?

a. WATER

b. CARBON DIOXIDE

-->  c. OXYGEN

d. GLUCOSE

question_image

What is the Photosynthesis part labeled F?

a. WATER

b. GLUCOSE

-->  c. CARBON DIOXIDE

d. OXYGEN

question_image

Which label represents the waste excreted from the plant (oxygen)?

a. F

b. U

c. S

-->  d. V

question_image

What is shown for letter F?

-->  a. CARBON DIOXIDE

b. GLUCOSE

c. OXYGEN

d. WATER

question_image

In photosynthesis, what represents carbon dioxide?

a. K

b. F

-->  c. H

d. M

question_image

Which letter represents the Oxygen?

-->  a. F

b. H

c. M

d. K

question_image

By what letter is the oxygen represented in the diagram?

-->  a. Y

b. F

c. R

d. D

question_image

Which label refers to water?

-->  a. F

b. D

c. R

d. Y

question_image

Where is the sun in this diagram?

a. D

-->  b. R

c. Y

d. F

question_image

Identify the flower in this picture

-->  a. A

b. U

c. N

d. Y

question_image

Which letter represents the fruit?

a. N

-->  b. U

c. A

d. Y

question_image

Identify the part of the plant that captures sunlight to be converted to energy via photosynthesis.

-->  a. N

b. U

c. A

d. Y

question_image

Identify the part that transports fluids between the roots and the shoots in the xylem and phloem

-->  a. Y

b. A

c. N

d. U

question_image

Which letter corresponds to the part that connects the roots to the leaves?

a. A

b. U

-->  c. Y

d. N

question_image

Which label shows the light energy?

a. V

b. M

-->  c. S

d. K

question_image

Which label shows the Water?

a. K

b. Y

c. M

-->  d. W

question_image

Which label represents the oxygen?

a. M

b. Y

-->  c. X

d. J

question_image

What does the letter M represent?

a. OXYGEN

b. WATER

c. CHLOROPLAST

-->  d. SUGARS

question_image

What does Y represent?

a. OXYGEN

b. CHLOROPLAST

-->  c. ENERGY FROM SUNLIGHT

d. WATER

question_image

From where does the plant get light energy?

-->  a. Y

b. J

c. X

d. P

question_image

Which represents the water?

a. Y

b. V

-->  c. P

d. J

question_image

By what letter is energy represented in the diagram?

a. F

b. J

-->  c. D

d. W

question_image

Which label shows light energy?

a. F

b. H

-->  c. D

d. A

question_image

Which label refers to the root?

-->  a. H

b. W

c. C

d. S

question_image

Which label represents the glucose?

a. M

b. S

c. E

-->  d. K

question_image

Which label absorbs water for the rest of the plant?

a. K

b. W

c. S

-->  d. E

question_image

Which label shows carbon dioxide being absorbed by the plant?

a. H

b. E

c. C

-->  d. W AND K

question_image

Which label shows the water?

-->  a. N

b. W

c. P

d. J

question_image

What letter represents energy?

a. V

b. H

-->  c. N

d. D

question_image

Which label shows light energy?

a. W

-->  b. N

c. D

d. H

question_image

Identify which part is needed to capture light energy.

a. N

b. D

-->  c. W

d. H

question_image

Where is carbon dioxide?

a. H

b. V

-->  c. D

d. N

question_image

Where is the carbon dioxide?

a. V

b. H

c. N

-->  d. D

question_image

In the diagram which label refers to light energy reaching the plant?

a. H

b. L

-->  c. W

d. U

question_image

Which letter represents the Sugar?

a. T

b. F

-->  c. H

d. U

question_image

Label letters L and F in the diagram.

a. L: NITROGEN  /  F: CARBON DIOXIDE

-->  b. L: OXYGEN  /  F: CARBON DIOXIDE

c. L: CARBON DIOXIDE  /  F: OXYGEN

d. L: OXYGEN  /  F: NITROGEN

question_image

By what letter is the minerals represented in the diagram?

-->  a. U

b. V

c. L

d. X

question_image

What process is represented by Y?

-->  a. CARBON DIOXIDE

b. LIGHT ENERGY

c. GLUCOSE

d. OXYGEN

question_image

Label letter V.

-->  a. CARBON DIOXIDE

b. OXYGEN

c. NITROGEN

d. CARBON MONOXIDE

question_image

Which shows the light energy during the process of photosynthesis?

-->  a. P

b. V

c. L

d. X

question_image

Identify the gas U.

a. CARBON DIOXIDE

b. NITROGEN

-->  c. OXYGEN

d. CARBON MONOXIDE

question_image

Which letter indicates energy in the form of sunlight entering the plant?

a. U

b. J

c. A

-->  d. T

question_image

Identify the cellular respiration

-->  a. K

b. F

c. Y

d. V

question_image

Identify the photosynthesis process in the following image:

a. R

-->  b. V

c. F

d. K

question_image

Which letter represents heat energy?

a. Y

b. V

c. F

-->  d. R

question_image

Which label identifies water from soil?

a. S

b. J

c. V

-->  d. C

question_image

Which label shows the carbon dioxide?

-->  a. F

b. C

c. J

d. S

question_image

Which of the inputs for photosynthesis is derived from atmosphere?

-->  a. carbon dioxide

b. oxygen

c. sunlight

d. water

question_image

How many elements are required for photosynthesis?

-->  a. 3

b. 2

c. 1

d. 4

question_image

How many ingredients does the plant for photosynthesis to occur?

-->  a. 3

b. 4

c. 5

d. 2

question_image

What would happen if this plant was deprived of sunlight?

a. Cellular respiration would not be able to occur to create glucose and oxygen

-->  b. Photosynthesis would not be able to occur to produce glucose and oxygen

c. Cellular respiration would be unable to occur to create carbon dioxide

d. Photosynthesis would not be able to occur to create water and carbon dioxide

question_image

Identify the part that produces light energy

a. leaf

-->  b. sun

c. plant

d. soil

question_image

What is an input for a plant?

-->  a. Water

b. Oxygen

c. Chloroplast

d. Light

question_image

What happens to the Oxygen in a leaf during the Photosynthesis?

-->  a. It leaves the leaf

b. It stays in the leaf

c. It is absorbed by the leaf

d. It goes to the ground

question_image

What part of plants turns water, CO2 and light into oxygen?

a. stoma

-->  b. Chloroplasts

c. xylem

d. leaf

question_image

How many colors of arrows are shown in the picture?

a. 3

b. 2

-->  c. 4

d. 5

question_image

What is the waste product of photosynthesis?

a. carbon dioxide

b. water

-->  c. oxygen

d. glucose

question_image

Which gas enters the plant and is necessary for photosynthesis?

-->  a. Carbon Dioxide

b. Oxygen

c. Glucose

d. Light energy

question_image

From the diagram, what gas is absorbed by the plant?

a. light energy

b. water

c. oxygen

-->  d. carbon dioxide

question_image

Which of the following is NOT used by plants for energy?

a. Light

-->  b. Oxygen

c. Carbon Dioxide

d. Glucose

question_image

How many gases are involved in the process of photosynthesis?

a. 3

b. 1

-->  c. 2

d. 4

question_image

How many leaves are present?

a. 5

b. 4

c. 1

-->  d. 6

question_image

Where does the light energy come from?

-->  a. The Sun

b. Oil

c. The Water

d. The Soil

question_image

What process is being represented in the diagram?

a. Growth

b. Light energy

c. Breathing

-->  d. Photosynthesis

question_image

Which one provides the energy for photosynthesis?

a. Oxygen

b. Carbon Dioxide

c. Water

-->  d. LIght Energy

question_image

What does a plant release?

a. Carbon Dioxide

b. Water

c. Light Energy

-->  d. Oxygen

question_image

How many sources the plant needs to produce Oxygen?

a. 5

b. 6

-->  c. 3

d. 4

question_image

What happens if there are no roots?

-->  a. plant can't absorb water

b. plant can't absorb oxygen

c. plant can't absorb light energy

d. plant can't absorb carbon dioxide

question_image

What's the process described in the image?

a. Breathing

b. Sunrise

c. Growing

-->  d. Photosynthesis

question_image

What do plants release during the process of photosynthesis?

-->  a. Oxygen

b. Sunlight

c. Water

d. Carbon Dioxide

question_image

Identify the byproduct of photosynthesis.

a. Water

b. Sunlight

-->  c. Oxygen

d. Carbon dioxide

question_image

What do plants release into the atmosphere?

a. Water

b. Sunlight

-->  c. Oxygen

d. Carbon dioxide

question_image

Where does sunlight come from?

-->  a. From the sun

b. From the water

c. From the air

d. From the lava

question_image

How many components are needed for photosynthesis to occur?

a. 1

b. 4

c. 2

-->  d. 3

question_image

What is the name of these phenomena?

-->  a. Photosynthesis

b. Digestion

c. Rotting

d. Respiration

question_image

What is the waste product of photosynthesis?

a. sunlight

-->  b. oxygen

c. carbon dioxide

d. water

question_image

What is the bottom part called?

a. leaf

-->  b. root

c. fruit

d. flower

question_image

What part of the plant has the function to effect reproduction usually by providing a mechanism for the union of sperm with eggs?

a. Stem

-->  b. Flower

c. Fruit

d. Leaf

question_image

What connects the roots to leaf?

a. plant

-->  b. stem

c. fruit

d. flower

question_image

What part of the plant is underground?

-->  a. Root

b. Leaf

c. Flower

d. Fruit

question_image

In the picture below, how many parts is connected with the stem?

a. 5

-->  b. 3

c. 4

d. 1

question_image

What is an organ of a vascular plant and is the principal lateral appendage of the stem?

a. Fruit

b. Root

c. Flower

-->  d. Leaf

question_image

What's the organ responsible for the photosynthesis?

a. Flower

-->  b. Leaf

c. Root

d. Fruit

question_image

What is absorbed by plants during photosynthesis?

-->  a. light energy and water

b. glucose

c. nothing

d. oxygen

question_image

What is not a factor in photosynthesis?

-->  a. Nitrogen

b. Oxygen

c. Hydrogen

d. Light Energy

question_image

What process is shown in the picture?

a. Energy Cycle

b. Oxygen Cycle

-->  c. Photosynthesis

d. Life Cycle of Humans

question_image

What is the waste product of photosynthesis?

a. energy from sunlight

b. chloroplast

c. water

-->  d. oxygen

question_image

In the diagram, what is absorbed by the roots?

a. Carbon Dioxide

-->  b. Water

c. Oxygen

d. Chloroplast

question_image

In what converts carbon dioxide?

a. Sugars

-->  b. Oxygen

c. Carbon dioxide

d. Chloroplast

question_image

What do plants absorb through their roots?

a. Sunlight

b. Chloroplast

-->  c. Water

d. Oxygen

question_image

How many parts are shown in the diagram below?

a. 3

b. 4

-->  c. 6

d. 5

question_image

Which of these does a plant expel?

a. energy from sunlight

b. chloroplast

-->  c. oxygen

d. water

question_image

What kind of energy is used by plants in photosynthesis?

a. Wind Energy

b. Chemical Energy

-->  c. Light Energy

d. Geothermal Energy

question_image

Which of the following is used by plants to produce glucose?

a. carbon dioxide

b. water

-->  c. all of the above

d. oxygen

question_image

What does the plant releases?

a. Water

-->  b. Oxygen

c. Energy

d. Carbon dioxide

question_image

What product is formed with energy, carbon dioxide and water from soil?

-->  a. oxygen

b. fruit

c. food and oxygen

d. food

question_image

How many processes occur during the photosynthesis?

a. 7

-->  b. 3

c. 1

d. 2

question_image

What is the waste product of photosynthesis?

a. water

b. carbon dioxide

c. energy

-->  d. oxygen

question_image

What's the part of the plant that gathers the water?

a. Leaf

b. Flower

c. Stem

-->  d. Roots

question_image

Which type of energy does the sun directly provide?

a. Oxygen

-->  b. Light energy

c. Water

d. Glucose

question_image

What is changed to chemical energy by the plant's photosynthesis?

a. glucose

b. oxygen

-->  c. light energy

d. minerals

question_image

The plant produces what during photosynthesis?

a. Carbon Dioxide

b. Minerals

-->  c. Oxygen

d. Water

question_image

What part of the plant takes in minerals and water from the ground?

a. Flower

b. Oxygen

-->  c. Root

d. Leaf

question_image

How many things does a plant release into the atmosphere?

a. 3

-->  b. 2

c. 1

d. 4

question_image

In the picture, what is absorbed by the leaves?

a. Oxygen

b. Glucose

c. Sunlight

-->  d. Carbon Dioxide

question_image

What does the sunlight provide in the photosynthesis process?

a. Water

b. Oxygen

c. Minerals

-->  d. Energy

question_image

What process is being represented in the diagram?

a. Breathing

b. Growth

-->  c. Photosynthesis

d. Sunlight

question_image

What is released by plants during photosynthesis?

-->  a. oxygen

b. sucrose

c. carbon dioxide

d. glucose

question_image

How many components are needed for photosynthesis to take place?

a. 2

b. 1

-->  c. 3

d. 4

question_image

In the picture, what is absorbed by the roots?

a. Sunlight

b. Carbon Dioxide

-->  c. Water

d. Oxygen

question_image

What is the waste product of photosynthesis?

a. water

b. carbon dioxide

c. energy

-->  d. oxygen

question_image

What does the Sun release?

a. glucose

b. carbon dioxide

c. oxygen

-->  d. energy

question_image

Which is the product of photosynthesis?

-->  a. Glucose

b. Carbon dioxide

c. Water

d. Sunlight

question_image

Where comes the energy needed from?

a. The ground

-->  b. The sun

c. The water

d. The chlorophyll

question_image

What is emitted by a plant during photosynthesis?

a. light energy

b. carbon dioxide

c. minerals

-->  d. oxygen

question_image

What do the plants inhale?

a. nitrogen

b. helium

-->  c. carbon dioxide

d. oxgen

question_image

How many is produced in below diagram?

-->  a. 2

b. 3

c. 5

d. 4

question_image

In the diagram, how many components does the plant absorb from its environment?

a. 3

b. 6

-->  c. 4

d. 2

question_image

Aside from water, what is observed by the roots?

-->  a. Minerals

b. Sunlight

c. Carbon Dioxide

d. Oxygen

question_image

In the diagram identify the element that provides energy for the process of photosynthesis.

a. Carbondioxide

b. Water

-->  c. Sunlight.

d. Oxygen

question_image

Glucose is one of the (blank) of photosynthesis.

a. Waste

-->  b. Product

c. Needs

d. Components

question_image

What does the leaf give off as a by-product?

-->  a. oxygen

b. sunlight

c. carbon dioxide

d. water

question_image

Which of the following is a product of photosynthesis?

a. Carbon dioxide

-->  b. Oxygen

c. Sunlight

d. Water

question_image

How many is produced in below diagram?

-->  a. 2

b. 4

c. 5

d. 3

question_image

How many products are produced by photosynthesis?

a. 5

b. 1

-->  c. 2

d. 3

question_image

Which of these is a waste product of a leaf?

a. sunlight

b. water

c. soil

-->  d. oxygen

question_image

What process is represented in this diagram?

a. Carbohydrates

b. Carbon dioxide

-->  c. Photosynthesis

d. Light energy

question_image

What do plants release?

-->  a. oxygen

b. Carbohydrates

c. Carbon dioxide

d. Light energy

question_image

How many products plants form during photosynthesis?

-->  a. 2

b. 3

c. 4

d. 1

question_image

What is the waste product of photosynthesis?

-->  a. oxygen

b. light energy

c. carbohydrates

d. carbon dioxide

question_image

What gas is created during photosynthesis?

a. Glucose

b. Carbon dioxide

-->  c. Oxygen

d. Water

question_image

From the diagram, what is produced by the leaf?

-->  a. oxygen and glucose

b. glucose

c. carbon dioxide

d. oxygen

question_image

How many gases are involved in the photosynthesis?

a. 4

-->  b. 2

c. 5

d. 3

question_image

What cell organelles are responsible for these phenomena?

a. Mitochondria

b. Nucleii

c. Cytoplasm

-->  d. Chloroplasts

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What do plants synthesize to get carbon dioxide and water using light energy?

a. water

b. minerals

-->  c. glucose

d. carbon dioxide

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From the diagram, what does the sun provide?

a. carbon dioxide

-->  b. light energy

c. oxygen

d. water

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How many is produced in below diagram?

a. 3

b. 5

c. 4

-->  d. 2

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How many plants in the diagram?

a. 3

-->  b. 1

c. 4

d. 2

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In the picture, what type of air is absorbed by the leaves?

a. Oxygen

b. Minerals

-->  c. Carbon Dioxide

d. Glucose

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From the diagram, identify the gas that is absorbed by the plant.

a. oxygen

-->  b. carbon dioxide

c. water

d. light energy

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Which part of the diagram provides the carbon for producing glucose during photosynthesis?

a. Water

-->  b. Carbon dioxide

c. Oxygen

d. Minerals

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What helps plants during photosynthesis?

a. oxygen

-->  b. light energy and mineral

c. carbon dioxide

d. water

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What would happen if CO2 decreased?

a. Water production would increase

b. Light energy would decrease

c. Oxygen production would increase

-->  d. Oxygen production would decrease

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How many types of energy does the sun give the plant?

a. 3

-->  b. 1

c. 4

d. 2

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Light energy is converted into chemical energy in this part of the plant.

a. Stem

b. Root

-->  c. Leaf

d. Flower

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Which of these are absorbed through only the roots?

a. carbon dioxide

b. light energy

-->  c. minerals

d. oxygen

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What does photosynthesis do?

a. ATP

-->  b. converts sunlight into heat energy

c. process between D and A

d. same as cellular respiration

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How does Cellular respiration work?

-->  a. Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products.

b. Human body temperature must remain within a narrow range around 37C (98.6F).

c. Biochemical reactions are chemical reactions that take place inside living things.

d. The enzyme pepsin works only in the presence of acid.

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Which process necessitates sun energy?

a. cellular respiration

b. hydration

c. classification

-->  d. photosynthesis

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What does a plant convert sugar into?

a. Water

-->  b. Starch

c. Light

d. Oxygen

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Identify the component responsible for turning energy into an organic compound.

-->  a. Chlorophyll

b. Starch

c. Water

d. Carbon Dioxide

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What does a plant need to create starch?

a. Sugar and Oxygen

b. Sugar and Carbon Dioxide

c. Chlorophyll

-->  d. Sugar

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What does the plant need to produce oxygen?

a. chlorophyll

b. sugar

c. starch

-->  d. Light, carbon dioxide, and Water

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Which of the following is a product of photosynthesis?

a. Carbon dioxide

b. Water

c. Chlorophyll

-->  d. Sugar

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How many arrows are coming from the sun in this image?

-->  a. 5

b. 4

c. 2

d. 3

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How many products are produced after photosynthesis?

a. 1

-->  b. 2

c. 3

d. 4

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What process is shown in the picture?

a. Food Chain

b. Life Cycle

-->  c. Photosynthesis

d. Food Web

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A chloroplast contains which necessary element for a photosynthesis to take place?

a. oxygen

b. carbon dioxide

c. water

-->  d. chlorophyll

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What is a green pigment that traps energy from sunlight?

-->  a. Chlorophyll

b. leaves

c. sugar

d. Stomata

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From the diagram, which two products exit the leaf through the stomata?

a. water and carbon dioxide

b. water and sunlight

-->  c. oxygen and water vapor

d. oxygen and starch

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Which is the other element important for photosynthesis apart from sunlight and carbon dioxide?

a. Stem.

b. Chlorophyll.

c. Oxygen

-->  d. Water.

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How many is consumed in below diagram?

a. 2

b. 4

c. 5

-->  d. 3

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How many times the sun is depicted in the diagram?

a. 2

-->  b. 1

c. 0

d. 3

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What is the waste product of photosynthesis?

a. water

b. carbon dioxide

c. light energy

-->  d. oxygen

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What is the waste product of photosynthesis?

-->  a. oxygen

b. water from soil

c. energy

d. carbon dioxide

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What process is being represented in the diagram?

a. Breathing

b. Light energy

-->  c. Photosynthesis

d. Carbon dioxide

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What is released during photosynthesis?

-->  a. Oxygen

b. Water

c. Carbon Dioxide

d. Leaves

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Which gas is exhaled by the plant?

a. Carbon Monoxide

-->  b. Oxygen

c. Nitrogen

d. Carbon Dioxide

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How many gases are involved in photosynthesis?

a. 3

b. 4

c. 1

-->  d. 2

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How many steps does the photosynthesis process have?

a. 1

b. 4

c. 2

-->  d. 3

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In the picture, what is absorbed by the roots?

a. Energy

-->  b. Water

c. Oxygen

d. Carbon Dioxide

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In the process of Photosynthesis what do plants absorb?

a. Oxygen

b. Energy

c. Nothing

-->  d. Carbon dioxide and water

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Identify the ATP

-->  a. Y

b. T

c. F

d. X

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What absorbs the sun's rays?

a. EARTH

b. ROOTS

c. STEM

-->  d. LEAVES