wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

BIO 101 Photosynthesis Practice

Total questions: 75

Worksheet time: 3hrs 52mins

Name
Class
Date
1.
Where does photosynthesis take place in the plant cell?
a)
Nucleus
b)
Cytoplasm
c)

Chloroplast

d)
Mitochondria
2.
What are the two products of photosynthesis?
a)
Oxygen and Carbon Dioxide
b)

Oxygen and Sugar (glucose)

c)

Sunlight and Sugar (glucose)

d)

water and carbon dioxide

3.
Pigment in green plants that captures the energy in sunlight is called _______.
a)
Pigment
b)
Chlorophyll
c)
Stomata
d)
Green Thing
4.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)

6CO2 + light + 6H2O --> 6O2 + C6H12O6

b)

6CO2 + C6H12O6 + 6H2O --> 6O2 + light

c)

6O2 + light + 6H2O --> 6CO2 + C6H12O6

d)

6O2 + C6H12O6 --> 6H20+ Sugar + ATP

5.
The main source of energy for all life comes from ____.
a)
the Earth
b)
the moon
c)
the sun
d)
the food we eat/make
6.
What are the reactants of photosynthesis?
a)
carbon dioxide and oxygen
b)
water and oxygen
c)
carbon dioxide and water
d)
water and glucose
7.

This is the chemical formula for a molecule of...

a)

Oxygen

b)

Carbon dioxide

c)

Glucose

d)

Water

8.

What is the purpose of photosynthesis?

a)

To release energy

b)

To create glucose

c)

To grow

d)

To get oxygen for respiration

9.

Which of these factors woudl not affect the rate of photosynthesis? .

a)

Light intensity

b)

Water

c)

Temperature

d)

Oxygen levels

e)

Carbon Dioxide concentration

10.
Most plants appear green because chlorophyll
a)
absorbs green light.
b)
absorbs violet light.
c)
reflects green light.
d)
does not absorb violet light.
11.

Main products of the Calvin Cycle

a)

Oxygen, NADP+, ADP

b)

Glucose, CO2, ADP

c)

ADP, NADP+, Glucose

d)

ATP, NADPH, Oxygen

12.

The Calvin Cycle occurs in the

a)

Thylakoid

b)

Grana

c)

Inner membrane of chloroplast

d)

Stroma

13.
Where do the light reactions happen?
a)
mitochondria membrane
b)
thylakoid membrane
c)
stroma
d)
central vacuole
14.

What supplies the electrons during photolysis?

a)

oxygen

b)

water

c)

glucose

d)

rubisco

15.

Choose the statement that best describes light reaction.

a)

It converts CO2 to sugar molecule

b)

It converts light energy to chemical energy of ATP and NADPH

c)

It takes place in the stroma

d)

It converts water into hydrogen gas and oxygen gas

16.

Which of the following is not needed to start the light reaction

a)

H2O

b)

ADP + P

c)

CO2

d)

chlorophyll

17.

What is NOT the product of light dependent reaction?

a)

ATP

b)

NADPH

c)

H2O

d)

O2

18.

Which of the following light color tends to be absorbed by plant chlorophyll?

a)

Red

b)

Green

c)

yellow

d)

Light green

19.

Which color of light will we see from B-carotene pigment?

a)

Red

b)

Green

c)

yellow-orange

d)

blue green

20.

•Plants and plant-like organisms make their own food or energy (glucose) from sunlight.

a)

Chemotrophs

b)

Heterotrophs

c)

Autotrophs

d)

Saprophytes

21.

What begins the process of photosynthesis?

a)

carbon dioxide is diffused into the stroma to, in a series of reactions, create sugar

b)

Water is split apart to release electrons and create a hydrogen concentration gradient

c)

ATP and NADPH energize reactants to produce oxygen and glucose

d)

Light energy is absorbed by pigments to energize the electron transport chain

22.

What is water's role in photosynthesis?

a)

To create a liquid solute for oxygen to be made.

b)

To provide electrons and hydrogen, to energize ATP and NADPH.

c)

To help plants with gas exchange, such as diffusion of CO2.

d)

To hydrate plants and removes harmful waste products.

23.

What do pigments do?

a)

Absorb specific wavelengths(color) of visible light for energy.

b)

Absorb CO2 in the Stroma to create sugar.

c)

Transports e- in the electron transport chain.

d)

Transports energy between plant cells.

24.

What are the two main energy carrying molecules used to create glucose?

a)

ADP and ADNH+

b)

ATP and NADPH

c)

Starch and Cellulose

d)

Glucose and Hydrogen

25.

When glucose is produced in the dark reactions, what molecules provided this sugar with the energy it carries?

a)

ATP and NADPH

b)

Sunlight

c)

ADP and NADP+

d)

H2O and CO2

26.

Where is energy stored and released in the molecules of photosynthesis?

a)

In the molecules bonds between atoms

b)

Energy is transferred freely

c)

Energy radiates into or out of molecules

d)

Enzymes carry the energy in vacuoles

27.

What are the primary ways glucose is stored in plants?

a)

As glycogen and fat

b)

As starch, cellulose, and oils

c)

In the stroma of the chloroplast

d)

As glycogen and cellulose

28.

As the intensity of light increases, the rate of photosynthesis will...

a)

steadily increase

b)

increase exponentially

c)

increase, then level off

d)

decrease at first, then increase

29.

Which of the following statements is true about pigments?

a)

Chlorophyll is best at absorbing green and yellow light

b)

Chlorophyll a makes plants either violet or red

c)

Carotenoid is best at absorbing yellow, orange, and red light

d)

Carotenoid is best at absorbing blue-violet light

30.

Which of the following statements about pigments is true?

a)

Chlorophyll A is much better at absorbing light than Chlorophyll B

b)

Phycocyanin would make a plant look blue or violet

c)

Yellow light is reflected by phycoerythrin

d)

Carotenoids would make a plant look a lighter shade of blue or green

31.

Which of the following best explains why the rate of photosynthesis dramatically drops off at extreme cold temperatures?

a)

there is not enough CO2 to fuel the reaction

b)

there is not enough light to power the reaction

c)

the shape of enzymes involved in the reaction denature

d)

the mitochondria cannot function at these temperatures

e)

there is not enough kinetic energy to provide many collisions

32.

Which of the following best explains why the rate of photosynthesis dramatically drops off at extreme hot temperatures?

a)

there is not enough CO2 to fuel the reaction

b)

there is not enough light to power the reaction

c)

the enzymes involved in the reaction denature

d)

the mitochondria cannot function at these temperatures

e)

all of the above could explain why the rate drops off

33.

Which of the following best explains how increasing CO2 concentration affects the rate of photosynthesis?

a)

as CO2 increases, the rate of photosynthesis rapidly increases until it plateaus due to enzymes being saturated

b)

as CO2 increases, the rate of photosynthesis increases continuously since CO2 is a needed reactant

c)

as CO2 concentration rises, the rate of photosynthesis increases until it becomes toxic to the plant's leaves

d)

there is no correlation between CO2 concentration and the rate of photosynthesis

34.

What is the source of activation energy to drive the photosynthetic reaction?

a)

Bonds in carbon dioxide being broken apart

b)

Glucose being broken down

c)

Sunlight being captured by chlorophyll

d)

Water being split into H+ ions

e)

Combustion of oxygen gas

35.

Where is the energy stored in ATP that will be used to energize the Calvin Cycle?

a)

In the ribose sugar

b)

In the bonds between ribose and adenine

c)

In the adenine base

d)

In the phosphates

e)

In the bonds between the phosphates

36.
Question Image

Match the following structures found in the chloroplast to their function

a)

Holds the form of the chloroplast and lets substances in and out.

1.

Outer membrane

b)

Traps light energy and photolyzes (splits) water

2.

Thylakoid

c)

A stack of thylakoids

3.

Grana

d)

The inner fluid of the thylakoids

4.

Lumen

e)

The fluid of the inner chloroplast compartment. Contains enzymes, starch, and the chloroplast's genome.

5.

Stroma

37.
What are the two products of the light reactions that are needed for the calvin cycle?
a)

NAD and NADPH

b)

NADP + and Glucose

c)

NADPH and ATP

d)

Oxygen and NADPH

38.

Where does the Oxygen we breathe come from?

a)

From chlorophyll

b)

From the Krebs cycle in mitochondria

c)

From water used in the photolysis reaction

d)

From water in respiration reactions

39.

Reorder the following stages of the light dependent processes in photosynthesis

a)

Sunlight strikes the chlorophyll in the thylakoid membranes

b)

Light energy is used to split water into oxygen, protons and electrons

c)

The electrons pass from the chlorophyll to an electron transport chain

d)

The energy lost by electrons as they pass through the electron transport chain is used to make ATP

e)

NADP+ molecules are converted to NADPH as they carry electrons to the stroma of the chloroplast for the light independent reaction

1)
2)
3)
4)
5)
40.

The stroma is the region outside the

a)

chloroplasts

b)

thylakoids

c)

plant cells

d)

all of the above

41.

Where do the light-dependent reactions take place?

a)

in the stroma of the chloroplast

b)

within the thylakoid membranes

c)

within the mitochondria membranes

d)

in the outer membrane of the chloroplasts

42.

What are the products of the light-dependent reactions?

a)

ATP, NADPH, and oxygen gas

b)

ATP, carbon dioxide gas, and NADPH

c)

carbon dioxide gas, oxygen gas, and NADPH

d)

oxygen gas and glucose

43.

Which of the following activities happens within the stroma?

a)

Photosystem I absorbs light.

b)

ATP synthase produces ATP.

c)

Electrons move through the electron transport chain.

d)

The Calvin cycle produces sugars.

44.

The Calvin cycle is another name for the...

a)

light-independent reactions.

b)

light-dependent reactions.

c)

photosynthesis reaction.

d)

electron transport chain.

45.

The light reactions of photosynthesis provides the Calvin cycle with...

a)

protons and electrons.

b)

ATP and NADPH

c)

CO2 and glucose.

d)

light and chlorophyll.

46.

The plants’ principal pigment is carotene.

a)

True

b)

False

47.

During the light-dependent reactions, plants use the energy in ATP and NADPH to build high-energy sugars.

a)

True

b)

False

48.
Which of the following is directly associated with Photosystem I?
a)

harvesting light energy to make ATP

b)

receiving electrons from the thylakoid membrane ETC of photosystem I

c)

generation of molecular oxygen from water

d)
extraction of hydrogen electrons from the splitting of water
49.

In photosystem II, the energy from the sun is used to split water into electrons, 2 protons (H+), and 1 atom of oxygen. The H+'s build up inside the lumen of the thylakoid membrane to build a concentration gradient. What are this H+ gradient used for?

a)
to produce additional NADPH
b)
to produce additional ATP
c)
to produce additional oxygen
d)
to produce additional carbon dioxide
50.
In a plant cell, where are ATP synthase complexes located?
a)
thylakoid membranes only
b)
inner mitochondrial membranes only
c)

thylakoid membrane and inner mitochondrial membranes

d)
thylakoid membrane and plasma membranes
51.

Reactions that consume CO2 take place in

a)
the light reactions of photosynthesis only
b)
the calvin cycle only
c)
the light reactions and the calvin cycle
d)
the calvin cycle and the citric acid cycle
52.
CAM plants keep stomata closed in daytime, thus reducing loss of water. They can do this because they
a)

they store CO2 obtained from the night to use for photosynthesis during the day time.

b)

fix CO2 into citrate by combining it with RuBP in the Calvin cycle.

c)

obtain CO2 through their roots during the day.

d)

fix CO2 into organic acids in the mesophyll cells, which do not rely on stomata.

53.
Compared to C3 plants, C4 plants
a)

have higher rates of photorespiration.

b)

can can fix CO2 into OAA so it can be used later allowing the stomata to only open for quick bursts of CO2

c)
do not use rubisco for carbon fixation.
d)

only open their stomata at night

54.
What is the main purpose of the light dependent reactions?
a)
To provide the energy for the calvin cycle
b)
To capture energy and make sugar
c)
To reflect green light
d)
To make sugars
55.
What are the two products of the light reactions that are needed for the calvin cycle?
a)
NAD and NADPH
b)
NADP + and Glucose
c)
NADPH and ATP
d)
Oxygen and NADPH
56.

The Calvin cycle is responsible about 90% of all carbon fixation. What is carbon fixation?

a)

concentrating carbon in the earth's atmosphere in the form of CO2

b)

  removing carbon from the Calving cycle and releasing it as CO2

c)

  Splitting CO2 to make ATP in the Calving cycle

d)

remodeling inorganic carbon from CO2 into organic glucose

57.
Which of the following is NOT a product of the light reactions?
a)
ATP
b)
NADPH
c)
Oxygen
d)
Glucose
58.
What does ATP synthase do?
a)
Create ATP through chemiosmosis.
b)
Break down ATP through chemiosmosis.
c)
Break down NADPH. 
d)
Create NADPH.
59.
What reactants are needed for the Calvin cycle?
a)
Carbon dioxide
b)

Carbon dioxide, ATP and NADPH

c)
Carbon dioxide and glucose
d)
Oxygen and water
60.
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
61.
What is the first stop in photosynthesis process?
a)
Photosystem I
b)
Photosystem II
c)
Electron Transport Chain
d)
stroma
62.

Oxidation is...

a)

Gain of electrons

b)

Loss of electrons

c)

Gain of Hydrogen atoms

d)

burning

63.

True or False? Electrons lose energy as they pass through ETC proteins.

a)

True

b)

False

64.

Which of these would be considered a C4 Pathway plant?

a)

aglae

b)

oak tree

c)

cactus

d)

sugar cane

65.

Which type of plant is adapted to live in areas that are hot AND humid?

a)

C3

b)

C4

c)

CAM

d)

All

66.

Most plants on earth are __________ plants.

a)

C3

b)

C4

c)

CAM

d)

ALL

67.

CAM plants keep stomata closed in daytime, thus reducing loss of water. They can do this because they

a)

fix CO2 into organic acids (OAA) during the night when temperatures are cooler.

b)

fix CO2 into by combining it with RuBP in the Calvin cycle.

c)

obtain CO2 through their roots during the day.

d)

are able to store light energy in their mesophyll for use at night

68.

Which of these would be considered a CAM pathway plant?

a)

cactus

b)

corn

c)

elm tree

d)

algae

69.

CAM plants have a different adaptation to what climate

a)

cold and wet

b)

hot and dry

c)

both

d)

none of the above

70.

This leaf structure regulates the opening and closing of stomata.

a)

guard cell

b)

chlorophyll

c)

oxygen

71.

Which part of the leaf is involved in conserving water in dry conditions?

a)

stroma

b)

chloroplast

c)

veins

d)

stomata

72.

The enzyme responsible for Carbon Fixation in C3 Photosynthesis is

a)

RuBisCo

b)

PEP Carboxylase

c)

Hexokinase

d)

Pyruvate DeHydrogenase

73.
Which structure helps prevent water loss and protects the leaf?
a)
Palisades mesophyll
b)
Spongy mesophyll
c)
Vascular tissue
d)
Cuticle
74.

Which part of the leaf consists of xylem and phloem?

a)

vascular bundle

b)

bundle sheath

c)

palisade mesophyll

d)

spongy mesophyll

75.

The outermost layer of CELLS of the leaf is the

a)

cuticle

b)

epidermis

c)

spongy mesophyll

d)

bundle sheath

Similar Resources on Wayground

EOY Biology Practice

75 questions

EOY Biology Practice

quiz

Worksheet

•

9th - 12th Grade

Infection & Response

70 questions

Infection & Response

quiz

Worksheet

•

12th Grade

Ekosistem & Pelestarian Lingkungan Hidup

80 questions

Ekosistem & Pelestarian Lingkungan Hidup

quiz

Worksheet

•

12th Grade

Semester 1 Exam 2022

70 questions

Semester 1 Exam 2022

quiz

Worksheet

•

9th - 12th Grade

QUIZ 3 REPRODUCTION& GROWTH PART 2 (SUBTOPIC 15.3, 15.4& 15.5))

78 questions

QUIZ 3 REPRODUCTION& GROWTH PART 2 (SUBTOPIC 15.3, 15.4& 15.5))

quiz

Worksheet

•

11th - 12th Grade

Biology Pre-assessment

75 questions

Biology Pre-assessment

quiz

Worksheet

•

9th - 12th Grade

Blood, Cardio-, and Respiratory Systems

70 questions

Blood, Cardio-, and Respiratory Systems

quiz

Worksheet

•

9th - 12th Grade