wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Light Dependent Reaction

Total questions: 40

Worksheet time: 1hrs 4mins

Name
Class
Date
1.

Which of the following is NOT a product of the light reactions?

a)

Oxygen

b)

NADPH

c)

ATP

d)

Glucose (Sugar)

2.
Where do the light reactions happen?
a)
mitochondria membrane
b)
thylakoid membrane
c)
stroma
d)
central vacuole
3.
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
4.

What part of the plant cell performs photosynthesis?

a)

The Mitochondrion

b)

The Nucleus

c)

The Chloroplast

d)

The Cell Wall

5.
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
6.
What gas does the process of photosynthesis release into the atmosphere?
a)
oxygen
b)
carbon dioxide
c)
water
d)
nitrogen
7.
Thylakoids are arranged in stacks called ____.
a)
Lamellae
b)
Stroma
c)
Granum
d)
Glucose
8.

Autotrophs (producers) can perform photosynthesis because they have -

a)

Mitochondria

b)

Ribosomes

c)

A Nucleus

d)

Chloroplasts

9.
ATP gets formed in the light dependent reaction by which process?
a)
Chemiosmosis
b)
Photosmosis
c)
Diffusion
d)
Active Transport
10.
Leaves look green because.....
a)
they eat their vegetables
b)
to blend into their environment
c)
they contain a molecule named chlorophyll
d)
they are sick
11.

Which of the following equations represents the overall chemical reaction for photosynthesis?

a)

6O2+ 6H2O → C6H12O6+ 6O2

b)

C6H12O6 + 6H2O→ 6O2+ 6O2

c)

6CO2+ 6H2O→ C6H12O6+ 6O2

d)

6O2 + 6H2O→ C6H12O6 + 6CO2

12.
According to this absorption spectrum, what color is not used by the chlorophyll pigments?
a)
green
b)
blue
c)
yellow
d)
red
13.
Protons move into the thylakoid due to the
a)
concentration gradient in the stroma
b)
  Brownian motion of the protons.
c)
  peer pressure of the cool electrons in the stroma.  
d)
movement of electrons through the electron transport chain
14.
Which of the following is NOT a product of the light reactions?
a)
ATP
b)
NADPH
c)
Oxygen
d)
Glucose
15.

Cyclic photophosphorylation differs from non-cyclic photophosphorylation in that _____________ is not made from the process.

a)

ATP

b)

G3P

c)

NADH

d)

NADPH

16.

The role of water molecule in light dependent reaction is to …

a)

Hydrolyse NADP+ at the end of the electron transport chain.

b)

Involve directly in the production of ATP.

c)

Replace the excited electron of reaction centre molecule in photosystem II.

d)

Involve directly in Calvin cycle.

17.
What is the primary function of cyclic electron flow?
a)
to produce additional NADPH
b)
to produce additional ATP
c)
to produce additional oxygen
d)
to produce additional carbon dioxide
18.

Electrons are passed along the ETC that leads to protons being pumped from thylakoid space to the (a)   .

19.

In cyclic photophosphorylation, the electron donor is (a)   .

20.

In non-cyclic photophosphorylation, the last electron acceptor is (a)   .

21.

Which of these is NOT found in the ETC in non-cyclic photophosphorylation?

a)

Plastoquinone

b)

Ferredoxin

c)

Cytochrome complex

d)

NADH dehydrogenase

22.

Photoexcited electrons in primary electron acceptors are passed on to the ____ ____ ____.

(a)  

23.

What is the enzyme that reduces NADP+ into NADPH?

(a)  

24.

Which of these is NOT a component of the ETC in cyclic photophosphorylation?

a)

Plastoquinone

b)

Ferredoxin

c)

Cytochrome complex

d)

Plastocyanin

25.

Which of these statements is TRUE regarding photoactivation?

a)

Proton molecules will energise electrons

b)

Only occurs in photosystem I

c)

It caused electron deficiency in reaction centres

d)

Requires CO2 absorption

26.

Which one of these is NOT a product of the photolysis of water?

a)

Oxygen atom

b)

Proton

c)

Electron

d)

ATP

27.

What is the fate of the oxygen atom produced during the photolysis of water?

a)

Combine with another oxygen atom to produce oxygen gas

b)

Remains in the thylakoid space to be used during ETC

c)

To recover electron deficiency in photosystems

d)

Used as final electron acceptor

28.

What is the fate of the hydrogen ions produced during the photolysis of water?

a)

Combine with another oxygen atom to produce oxygen gas

b)

Remains in the thylakoid space to be used during ETC

c)

To recover electron deficiency in photosystems

d)

Used as final electron acceptor

29.

What is the fate of the electrons produced during the photolysis of water?

a)

Combine with another oxygen atom to produce oxygen gas

b)

Remains in the thylakoid space to be used during ETC

c)

To recover electron deficiency in photosystems

d)

Used as final electron acceptor

30.

Which of these are NOT the products of cyclic photophosphorylation?

a)

ATP

b)

NADPH

c)

O2

d)

CO2

31.

What is used to reduce NADP in the light dependent reactions of photosynthesis?

a)

Conversion of ATP into ADP +Pi

b)

Electrons from photosystem I

c)

Protons from the thylakoid space

d)

Oxygen from the photolysis of water

32.

Which space has the highest H+ concentration in a chloroplast?

a)

Thylakoid space

b)

Stroma

c)

Intermembrane space

d)

Matrix

33.

Besides ATP and O2, what other compound is produced as a result of the light dependent reactions?

a)

NADPH (reduced NADP)

b)

NADP+

c)

Glucose

d)

ADP

34.

What is reduced by photosystem I?

a)

ADP

b)

NADP+

c)

NAD

d)

FAD

35.

What is produced by chemiosmosis?

a)

ATP

b)

Oxygen

c)

Water

d)

Protons

36.

Where does photoactivation of electrons take place

a)

Photosystems I and II

b)

Photosystem I only

c)

Photosystem II only

d)

Electron Transfer Chain

37.

What is produced by the photolysis of two water molecules?

a)

O2 + 4H+ + 4e-

b)

O2 + 4H+ + 2e-

c)

1/2 O2 + 2H+ + 2e-

d)

1/2 O2 + 2H+ + 4e-

38.
What is the purpose of splitting water in PS2 of the light dependent reaction?
a)
Provides e- for PS2 and H+ for the thylakoid space
b)
To produce Oxygen for animals
c)
There is no purpose
39.
It is important to create a concentration of H+  in the thylakoid space so that the H+ can diffuse through_________ to create ______.
a)
ATP synthase, ATP
b)
NADH, NADPH
c)
proton pump, protons
40.

The role of water molecule in light dependent reaction is to …

a)

Hydrolyse NADP+ at the end of the electron transport chain.

b)

Involve directly in the production of ATP.

c)

Replace the excited electron of reaction centre molecule in photosystem II.

d)

Involve directly in Calvin cycle.

Similar Resources on Wayground

Ch2- Chemistry of Life

41 questions

Ch2- Chemistry of Life

quiz

Worksheet

•

11th Grade

Examen 1 de Biología 10

40 questions

Examen 1 de Biología 10

quiz

Worksheet

•

10th Grade

Systems Quest

40 questions

Systems Quest

quiz

Worksheet

•

11th Grade

Unit 2: Estuaries Review

35 questions

Unit 2: Estuaries Review

quiz

Worksheet

•

9th - 12th Grade

Benchmark Review 8A/B, Prok/Euk, 9A

40 questions

Benchmark Review 8A/B, Prok/Euk, 9A

quiz

Worksheet

•

9th Grade

Bio Revision Sem 2 Set 3

40 questions

Bio Revision Sem 2 Set 3

quiz

Worksheet

•

12th Grade - University

UH Kelas XI

40 questions

UH Kelas XI

quiz

Worksheet

•

11th Grade

Se liga

42 questions

Se liga

quiz

Worksheet

•

12th Grade