Free Printable Photosynthesis

1.

Which organelle performs photosynthesis?

a)

Chloroplast

b)

Mitochondria

c)

My phone

2.

Leaves look green because.....

a)

absorb green wavelengths of light

b)

reflect red and yellow wavelengths of light

c)

reflect green wavelengths of light

d)

absorb yellow and blue light making them green

3.

Plants use ______ as food and a building block for growth.

a)

chlorophyll

b)

pigment

c)

glucose (sugar)

d)

Oxygen

4.

Light-independent (aka Calvin Cycle) reactions take place in the stroma of which plant organelle?

a)

thylakoid membrane

b)

stomata

c)

chloroplast

d)

mitochondria

5.

Plants are __________, they make their own food.

a)

Heterotrophs

b)

Autotrophs

c)

Mitochondria

d)

A black hole into an intergalactic void

6.

What is the chemical formula for glucose?

a)

C₆H₁₂O₆

b)

C₆H₆O₁₂

c)

C₁₂H₆O₁₂

d)

C₆O₂H₆

7.

If carbon dioxide is completely removed from a plant’s environment, what would you expect to happen to the plant’s production of Glucose?

a)

Glucose production will increase.

b)

Glucose will not be produced.

c)

The rate of glucose production will decrease .

d)

Fewer glucose will be produced at first, but then the plant will recover.

8.

If we enclosed a plant in an air-proof bottle, what would happen to the rate of photosynthesis

a)

Gradually slow down to zero because CO₂ is used up

b)

Shows a constant rate as long as the light remains on

c)

Gradually speeds up because O₂ builds up

d)

Gradually slows down because glucose builds up

9.

Why would the rate of photosynthesis decrease at super high temperatures?

a)

Enzymes are denatured

b)

Enzymes do not have enough kinetic energy

10.

Select all the products of Photosynthesis.

a)

$H_2O$ (Water)

b)

$CO_2$ (Carbon Dioxide)

c)

$O_2$ (Oxygen)

d)

Sunlight (Light Energy)

e)

$C_6H_{12}O_6$ (Glucose)

11.

Based on the picture, what is Q?

a)

Water

b)

Carbon dioxide

c)

Chlorophyll

d)

Sunlight

12.

Diagram shows 4 needs of photosynthesis. What is P?

a)

Carbon dioxide

b)

Water

c)

Chlorophyll

d)

Sunlight

13.

The correct photosynthesis equation is:

a)

$C_6H_{12}O_6\ +\ 6O_2\ \rightarrow\ 6H_2O\ +\ 6CO_2\ +ATP$

b)

$6H_2O\ +\ 5CO_2\ \rightarrow\ sunlight\ \rightarrow\ 6O_2\ +\ C_6H_{12}O_6\$

c)

$6H_2O\ +\ 6CO_2\ +\ sunlight\ \rightarrow\ 6O_2\ +\ C_6H_{12}O_6$

d)

None of the above

14.

What part of the leaf is responsible for absorbing the sun’s energy?

a)

Cell Wall

b)

Veins

c)

Chlorophyll

d)

Nucleus

15.

Glucose is a type of _______________.

a)

Dairy Product

b)

Protein

c)

Salt

d)

Sugar

16.

What are the products of photosynthesis?

a)

carbon dioxide and glucose

b)

oxygen and glucose

c)

water and carbon dioxide

d)

oxygen and carbon dioxide

17.

__________ energy from the sun is changed into __________ energy during photosynthesis

a)

Electrical, Light

b)

Chemical, Light

c)

Physical, Chemical

d)

Light, Chemical

18.

The ____________ is the most photosynthetic part of a plant.

a)

Trunk

b)

Flower

c)

Stem

d)

Leaf

19.

Which gas is removed from the atmosphere during photosynthesis?

a)

Argon

b)

Oxygen

c)

Methane

d)

Carbon Dioxide

20.

If all four plants were watered daily but placed in a closet, receiving no sunlight, what process would NOT occur?

a)

Photosynthesis

b)

Respiration

c)

Water absorption

d)

Ingestion of Carbon Dioxide

21.

Which organelle is responsible making food (Glucose) using sunlight?

a)

Cell Membrane

b)

Nucleus

c)

Chloroplast

d)

Mitochondria

22.

How does most of the water needed by the plant get into its leaves?

a)

It enters through the stomata

b)

The roots absorb it and then it travels up the stem

c)

It's made during a chemical reaction in the leaf

d)

The flowers capture water and deliver it to the leaves

23.

Why do plants conduct photosynthesis?

a)

To make light

b)

To make mitochondria

c)

To make glucose

d)

To release carbon dioxide

24.

Which choice correctly shows the gases that enter and exit plants during photosynthesis?

a)

Enter: Oxygen
Exit: Carbon dioxide

b)

Enter: Water vapor
Exit: Glucose

c)

Enter: Carbon dioxide
Exit: Oxygen

d)

Enter: Light
Exit: Water vapor

25.

Which of the following is an example of an AUTOTROPH?

a)

Appletree

b)

Dog

c)

Mushroom

d)

Human

26.

What is the ultimate ORIGINAL source of energy for living things

a)

Sugar

b)

Sun

c)

Moon

d)

Carbon Dioxide

27.

In which structure of chloroplasts do the light independent reactions occur

a)

stroma

b)

thylakoid

c)

granum

d)

lumen

28.

In which structure of chloroplasts do the light dependent reaction occur

a)

stroma

b)

thylakoid

c)

mitochondria

d)

lumen

29.

In what part of the chloroplast is sugar made?

a)

granum

b)

stroma

c)

thylakoids

d)

lumen

30.

The light independent reaction produces what?

a)

glucose

b)

chloroplasts

c)

ATP

d)

NADPH

31.

What is the purpose of the light dependent reactions?

a)

To produce high energy sugars

b)

To produce high energy compounds, ATP and NADPH

c)

To produce ATP + P

d)

To produce NADP+

32.

The whole purpose of photosynthesis is for plants to produce

(a)

33.

What are the two reactions in photosynthesis

a)

Light dependent and light independent reactions

b)

Light independent reactions and the Calvin Cycle

c)

ATP and NADPH

d)

ADP + P and NADP+

34.

In which process in photosynthesis is sugar made?

a)

Independent reactions

b)

Light Independent reactions (a.k.a. Calvin Cycle)

c)

Dependent reactions

d)

Light Independent reactions

35.

What is the name of the structure shown at D?

a)

Lumen

b)

Stroma

c)

Thylakoid

d)

Granum

36.

What is produced in the structure shown at D?

a)

ATP

b)

ATP and NADPH

c)

Sugar

d)

ADP+P and NADP+

37.

What is name of the structure shown at E?

a)

thylakoid

b)

lumen

c)

stroma

d)

granum

38.

What is the the name of a molecule in leaves that captures and absorbs light energy at certain wavelengths and reflects it at others?

a)

ATP

b)

NADP+

c)

photosynthesis

d)

pigment

39.

What type of reaction produces ATP and NADPH for the Calvin Cycle? See diagram.

a)

Light independent reactions

b)

Light dependent reactions

c)

Enzymatic reaction

d)

Photosynthetic reactions

40.

After the energy from ATP and NADPH are used in the Calvin cycle to produce sugar, ADP + P and NADP+ are sent back to the

a)

stroma for the light independent reaction

b)

thylakoid for the light dependent reaction

c)

lumen for photosynthesis

d)

helicopter pad for another go-around

Photosynthesis

Total questions: 40

Worksheet time: 14mins

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