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Photosynthesis Review 2025

Total questions: 41

Worksheet time: 10hrs 15mins

Name
Class
Date
1.

The light reaction makes NADPH and ATP. What are these used for?

a)

To break down glucose and make lots of ATP.

b)

To fix C02 from the atmosphere and make glucose.

c)

To drive the electron transport chain.

d)

The ATP is used when you run out of TP.

2.

What are the tiny little openings in a leaf that allow for gas exchange?

a)

Fettuccini alfredo

b)

Stoma

c)

Spongy mesophyll

d)

Guard cell

3.

The type of vascular tissue that transports water and nutrients from the root of the plant to the leaves is....

a)

Xylem

b)

Cuticle

c)

Phloem

d)

Stomata

4.

The type of vascular tissue that transports nutrients from the leaves to the root is....

a)

Xylem

b)

Cuticle

c)

Stomata

d)

Phloem

5.

The cells that are in charge of opening and closing due to changes in water pressure.

a)

Spongy mesophyll

b)

Stoma

c)

Guard cells

d)

Xylem

6.

In our bean and corn germination and growth rate experiment, we found that:

a)

Corn germinated better than beans.

b)

Corn and beans grew at the same rate for everyone.

c)

Corn bread with beans, melted cheese, and marinara sauce tastes good.

d)

Corn and beans aren't plants, they are actually algae.

7.

Anabolic means to:

a)

break apart

b)

build up

c)

cross a boundary

d)

turn upside-down

8.

Catabolic means to:

a)

break apart

b)

build up

c)

cross a boundary

d)

turn upside-down

9.

True or False: Cellular respiration takes carbon dioxide and water and makes glucose and oxygen.

a)

True

b)

False

10.

The pain in your muscles from lifting weights is probably from:

a)

ATP

b)

Aerobic Respiration

c)

Lactic Acid buildup

d)

Calvin Cycle

e)

Little weight gremlins go in your muscles and chop them with axes.

11.

How many CO2 are in the balance equation for photosynthesis?

a)

1

b)

3

c)

6

d)

12

12.

What is the function of the palisade mesophyll?

a)

Support

b)

Transport

c)

Photosynthesis

d)

Home to the leaf gnomes

13.
Sunlight, Water and __________ are needed to conduct photosynthesis?
a)
Oxygen
b)
Carbon Dioxide
c)
Sugar
d)
Atoms
14.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
CO+ light + H2O --> O+ Sugar
b)
CO+ sugar + H2O --> O+ light
c)
O2 + light + H2O --> CO+ Sugar
d)
CO+ O2 + H2O --> Light+ Sugar
15.
Which of the following is responsible for the exchange of gases between the plant and the atmosphere during photosynthesis?
a)
primary and secondary meristems 
b)
xylem and phloem 
c)
guard cells and stomata
d)
cambium and epidermis 
16.

What are the 3 reactants of photosynthesis? The reactants are the things needed for photosynthesis to occur.

a)

oxygen, glucose, sunlight

b)

sunlight, oxygen, water

c)

water, oxygen, carbon dioxide

d)

carbon dioxide, sunlight, water

17.

What pigment captures/absorbs sunlight?

a)

stomata

b)

chlorophyll

c)

chloroplast

d)

phloem

18.

What is the tiny openings that let in the carbon dioxide needed for photosynthesis?

a)

stomata

b)

xylem

c)

phloem

d)

chloroplast

19.

How does water travel from the roots to the plan leaf? Name the structure that carries water.

a)

stomata

b)

phloem

c)

chloroplast

d)

xylem

20.

What are the 2 products of photosynthesis? The products are the things made in the process of photosynthesis.

a)

water, sunlight

b)

glucose, carbon dioxide

c)

oxygen, glucose

d)

sunlight, oxygen

21.

What is the main purpose of photosynthesis?

a)

To make food

b)

To create energy

c)

To release oxygen

d)

To absorb sunlight

22.

Which product is "waste" and mostly released by the producer (plant)?

a)

oxygen

b)

carbon dioxide

c)

sugar

d)

glucose

23.

How does oxygen get released by the producer (plant)? Name the structure in the leaf.

a)

stomata

b)

xylem

c)

phloem

d)

chloroplast

24.
What two products does a plant make during photosynthesis?
a)
Water and Glucose
b)
Oxygen and Glucose
c)
Oxygen and Water
d)
CO2 and Glucose
25.
Which plant part absorbs water and nutrients?
a)
Leaf
b)
Stem
c)
Roots
d)
Flower
26.

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

a)

Cell Membrane

b)

Nucleus

c)

Chloroplast

d)

Mitochondria

27.

Pick the reactants and products of photosynthesis

Categorize the following

H20

CO2

C6H12O6

O2

CH4

CO

Reactants
Products
Neither
28.

Pick the reactants and products of photosynthesis

Categorize the following

Water

Carbon Dioxide

Glucose

Oxygen

Methane

Hydrogen Peroxide

Reactants
Products
Neither
29.

Click the location of the Light Reaction (look at your notes or the diagram you drew of the chloroplast)

30.

Click the location of the Dark Reaction/Calvin Cycle (look at your notes or the diagram you drew of the chloroplast)

31.

What is this thing?

a)

Mitochondria

b)

Chloroplast

c)

Membrane

d)

Infiniti Stone

32.

Identify the location that photosynthesis takes place

33.

Photosynthesis _______________ in the bond of glucose

a)

stores energy

b)

releases energy

34.

Draw a model that includes the two processes of photosynthesis using the chemical equation:

6CO₂ + 6H₂O + Light Energy → C₆H₁₂O₆ + 6O₂

35.

For the Light Reaction, the reactants are ​ (a)   while the products are ​ (b)  

For the Dark Reaction/Calvin Cycle the reactants are ​ (c)   while the products are ​​ (d)  

Choose from the below words
H2O and light
O2, ATP, and NADPH
CO2, ATP, and NADPH
Glucose, ADP + P, and NADP+
36.

Why does the saying "Cellular Respiration is basically Photosynthesis Backwards" make sense?

a)

Thanos was right.

b)

The cells do respiration backwards and it becomes photosynthesis.

c)

Because the reactants and products from each is basically switched.

d)

The light and dark reactions are reversed for each.

37.

Where does the Calvin Cycle take place? ​ (a)  

Choose from the below words
stroma
thylakoid
granum
mitochondria
38.

What is the product of the Calvin Cycle? ​ (a)  

Choose from the below words
glucose/sugar
carbon dioxide
water
oxygen
39.

During the Calvin Cycle, molecules of ​ (a)   supply the carbon component of ​ (b)  

Choose from the below words
CO2
carbohydrates
O2
H20
proteins
lipids
40.
What is represented by "E" in this image?
a)
ATP
b)
NADPH
c)
Light Energy
d)
Glucose
41.

B

a)

Calvin Cycle

b)

Light Dependent Reaction