The IMMEDIATE energy source that drives ATP synthesis by ATP synthase is the...

H+ concentration gradient across the membrane

How can the rate of photosynthesis of a plant be directly measured?

By measuring the rate of oxygen produced

What is the advantage of having more than one type of photosynthetic pigment?

absorption of different wavelengths

The purpose of photosynthesis is to

Produce glucose for the plant to use

Water is important to the light reactions because

It replaces the excited electrons for chlorophyll

ATP Synthase requires a _______ to create ATP.

Formation of a hydrogen gradient

What conclusion can be made from the action spectrum of a green plant?

Light of wavelength 550nm is least effective

What is light energy used for in photosynthesis?

to excite the electron in chlorophyll

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AP Bio Photosynthesis Review #2

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A #photosynthesis #review of the previous lessons!

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Questions 19

Answers

1
In photosynthesis, the Calvin cycle depends directly on
availability of ATP and NADPH.
production of glucose.
availability of light.
availability of water.
2
The IMMEDIATE energy source that drives ATP synthesis by ATP synthase is the...
oxidation of glucose and other organic molecules
transfer of phosphate to ADP
flow of electrons down the electron transport chain
H+ concentration gradient across the membrane
3
Why are leaves green?
Carbon Dioxide
Oxygen
Carotenoids
Chlorophyll
4
How can the rate of photosynthesis of a plant be directly measured?
By measuring the rate of plant growth
By measuring the rate of light absorbed
By measuring the rate of oxygen produced
By measuring the rate of carbon dioxide produced
5
Where do the light reactions take place?
Granum
Chloroplast stroma
Inner chloroplast membrane
Thylakoid membrane
6
What is the advantage of having more than one type of photosynthetic pigment?
different pigments produce different sugars
carotenoids accelerate photosynthesis
absorption of different wavelengths
all are needed for photosynthesis
7
Random Trivia: Where would you find the Sea of Tranquility?
The moon
Bora Bora
The Amazon
China
8
What is the enzyme that catalyses the initial reaction in the Calvin cycle?
G3P
RuBP
PGA
Rubisco
9
The Calvin cycle of photosynthesis takes place
in the chloroplast.
in the thylakoid membrane.
in the stroma.
before the light reactions.
10
Which type of light is most useful for photosynthesis in plants?
red
yellow
green
blue
11
The purpose of photosynthesis is to
Produce glucose for the plant to use
Produce oxygen for animals
Produce glucose and oxygen for plants and animals
Take carbon dioxide out of the atmosphere
12
The passing of electrons along a series of molecules, releasing energy bit by bit as they go is
reducing NADPH
Calvin cycle
the splitting of water
electron transport chain
13
RANDOM TRIVIA TIME! What is a group of scorpions called?
A frightful sight! Run away!
A cyclone
A sting
A punch
14
Water is important to the light reactions because
It keeps the stomata open
It provides the excited electron
It replaces the excited electrons for chlorophyll
It is reduced to form NADPH
15
ATP Synthase requires a _______ to create ATP.
Formation of a hydrogen gradient
Excited electron from chlorophyll
Electrons from water
CO2
16
Which is not a step in the Calvin cycle?
carbon dioxide fixation
regeneration of RuBP
splitting oxygen from CO2
reduction
17
What conclusion can be made from the action spectrum of a green plant?
Light of wavelength 550nm is least effective
Every color is equally effective at promoting photosynthesis
Yellow light is most effective at promoting photosynthesis
Light in the green range is most effective
18
Which graph represents the effect of changing light intensity on the rate of photosynthesis?
B
A
D
C
19
What is light energy used for in photosynthesis?
to make oxygen and hydrogen react
to oxidise organic compounds
to absorb carbon dioxide
to excite the electron in chlorophyll

AP Bio Photosynthesis Review #2 Flashcards | StudBud