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light dependent reaction

Total questions: 17

Worksheet time: 6mins

Name
Class
Date
1.
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
2.
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
3.
What supplies the electron that is lost in PS II?
a)
oxygen
b)
water
c)
glucose
d)
rubisco
4.
What supplies the electrons that are lost in photosystem I (PSI)?
a)
the electrons from PS II
b)
water
c)
glucose
d)
oxygen
5.
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
6.
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
7.
Which of the following is NOT a product of the light reactions?
a)
ATP
b)
NADPH
c)
Oxygen
d)
Glucose
8.

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

a)

ATP

b)

G3P

c)

NADH

d)

NADPH

9.
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
10.
Where do the light reactions happen?
a)
mitochondria membrane
b)
thylakoid membrane
c)
stroma
d)
central vacuole
11.
The gel-like material that surrounds the grana is called ____
a)
lamellae
b)
granum
c)
thylakoid
d)
stroma
12.

What is the maximum wavelength that can be absorbed by Photosystem I?

a)

P680

b)

P700

c)

P650

13.

Where does the oxygen released by the light dependent reaction come from?

a)

NADPH

b)

ATP

c)

Water

d)

Carbon Dioxide

14.

When electrons in the reaction-center chlorophyll become so excited; they escape to a nearby __________.

a)

primary electron acceptor molecule

b)

secondary electron acceptor molecule

c)

chloroplast

d)

cellular membrane

15.

After the electron from photosystem I is transferred to the primary electron acceptor, it is passed along the electron transport chain by the carrier

a)

Plastoquinone

b)

Plantacyanin

c)

Cytochrome complex

d)

Ferredoxin

16.

Plants produce oxygen when they photosynthesize. Where does the oxygen come from?

a)

splitting water molecules

b)

ATP synthesis

c)

the electron transport chain

d)

chlorophyll

17.

Where does photoactivation of electrons take place

a)

Photosystems I and II

b)

Photosystem I only

c)

Photosystem II only

d)

Electron Transfer Chain