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Photosynthesis and Water

Total questions: 68

Worksheet time: 51mins

Name
Class
Date
1.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
CO2 + light + H2O --> O2 + Sugar
b)
CO2 + sugar + H2O --> O2 + light
c)
O2 + light + H2O --> CO2 + Sugar
d)
CO2 + O2 + H2O --> Light+ Sugar
2.
What is the pigment in chloroplasts that performs photosynthesis?
a)
Chlorosynthesis
b)
Chlorophyll
c)
ADP
d)
Electron Transport
3.
What is produced as a result of photosynthesis?
a)
Glucose and Chlorophyll
b)
Glucose and Oxygen
c)
Water and Light energy
d)
Carbon dioxide and Water
4.
What molecule absorbs sunlight for photosynthesis?
a)
chloroplast
b)
thylakoid
c)
grana
d)
chlorophyll
5.
Which statement about photosynthesis is correct?
a)
Plants get the energy they need for photosynthesis from water.
b)
Plants get the energy they need for photosynthesis from soil.
c)
Plants get the energy they need for photosynthesis from sunlight.
d)
Plants do not require energy to perform photosynthesis.
6.
A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27°C. The gas being collected is probably ________.
a)
oxygen
b)
carbon dioxide
c)
ATP
d)
glucose
7.
Which of the following is not needed for photosynthesis to occur?
a)
sunlight
b)
carbon dioxide
c)
water
d)
oxygen
8.
What is the purpose of photosynthesis?
a)
make glucose
b)
make ATP
c)
make light
d)
release carbon dioxide
9.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
6CO2 + 6H2O --> 6O2 + C6H12O6
b)
6CO2 + C6H12O6 + 6H2O --> O2 
c)
6O2 + 6H2O --> 6CO2 + C6H12O6
d)
C6H12O6 + 6O2 ---> 6H2O + 6CO2 
10.

What is the energy molecule for all living cells?

a)

ADP

b)

ATP

c)

Protein

d)

Sugars

11.

Which of the following is the correct structure of ATP?

a)
b)
c)
d)
12.

How does ATP provide energy for the cell?

a)

The bond between the first and second phosphate is broken to release energy.

b)

The bond between the adenine and the sugar is broken to release energy.

c)

The bond between the sugar and phosphates are broken and release energy.

d)

The bond between the second and third phosphate are broken to release energy.

13.
Using the figure, which parts of the molecule must the bonds be broken to form an ADP molecule?
a)
A and B
b)
B and C
c)
C and D
d)
all of the above
14.
What are the parts of the ATP molecule?
a)
adenine, thylakoids, stroma
b)
stroma, grana, chlorophyll
c)
adenine, ribose, phosphate groups
d)
NADH, NAHPH, FADH
15.
ADP is an abbreviation for:
a)
aniline diphosphate.
b)
adenine diphosphate.
c)
adenosine diphosphate.
d)
adenosine triphosphate.
16.

The function of a pigment is to...

a)

Generate new light ("glow") in certain colors

b)

absorb some light and reflect the rest

c)

delete light energy

d)

none of these

17.

Which of the following pigments is not present in plants?

a)

Melanin

b)

chlorophyll a

c)

chlorophyll b

d)

carotenoids

18.

What is a wavelength?

a)

How bright a lightbeam is

b)

Distance from light source to the object the light strikes

c)

Distance between two peaks on a wave of light

d)

A single unit / "packet" of light

19.
a)
Stroma
b)
Thylakoid
c)
Skittle
d)
Grana
20.
a)
Flapjack Stack
b)
Grana
c)
Thylakoid
d)
Stroma
21.
a)
Grana
b)
Thylakoid
c)
Stroma
d)
Jelly Filling
22.
a)
Outer Membrane
b)
Inner Membrane
c)
Thylakoid Membrane
d)
Peanut Butter Layer
23.
What are electron carrier molecules?
a)
Molecules that transfer high energy electrons to other molecules
b)
Molecules that carry energy from one reaction to another
c)
Molecules that make ATP
d)
Molecules that have little dogs that fit in their purse
24.

how many membrane envelopes does a chloroplast have?

a)

One

b)

Two

c)

Three

d)

Four

25.
During the Photosystems oxygen is released into the air.  Which molecule is the oxygen released from?
a)
carbon dioxide
b)
water
c)
glucose
d)
protein
26.

Photons (packets of light) are used to

a)

split water molecules

b)

split sugar molecules

c)

split carbon dioxide

d)

split ATP

27.
Where does the plant get H+ to make NADPH?
a)
air
b)
water
c)
sugar
d)
sun
28.
Chlorophyll gives leaves a green colour because it:
a)
Absorbs green light
b)
Reflects green light
29.

When light strikes a photosystem...

a)

It blows up

b)

The first chlorophyll gives electrons to NADP+

c)

Excited electrons jump from chlorophyll to chlorophyll, then to an electron carrier

d)

Excited ATPs jump from one chlorophyll to the next

30.

What is the primary electron carrier used in photosynthesis?

a)

NADP+/NADPH

b)

NAD+/NADH

c)

FAD+/FADH

d)

ADP/ATP

31.

Which of the following does NOT enter the light-dependent reactions?

a)

CO2

b)

H2O

c)

Light

d)

ADP & NADP+

32.

Which of the following is NOT produced by the light-dependent reactions?

a)

ATP

b)

NADPH

c)

sugar

d)

O2

33.

Which of the following DOES NOT enter the light-independent reactions?

a)

ATP

b)

NADPH

c)

CO2

d)

H2O

34.

Which of the following IS NOT produced by the light-independent reactions?

a)

sugar

b)

ADP

c)

NADP+

d)

O2

35.

Where do the light-dependent reactions occur?

a)

in the airspace

b)

in the epidermis

c)

on the thylakoid membrane

d)

in the stroma

36.

where do the light-independent reactions occur?

a)

in the airspace

b)

in the epidermis

c)

on the thylakoid membrane

d)

in the stroma

37.
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
38.
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
39.
Where are photosystems located?
a)
thylakoid space
b)
thylakoid membrane
c)
central vacuole
d)
stroma
40.
What photosystem(s) are involved in the light reaction?
a)
Photosystem 1
b)
Photosystem 2
c)
Both
41.
Thylakoids are arranged in stacks called ____.
a)
Lamellae
b)
Stroma
c)
Granum
d)
Glucose
42.
The gel-like material that surrounds the grana is called ____
a)
lamellae
b)
granum
c)
thylakoid
d)
stroma
43.

The splitting of water at photosystem II is known as ____ and results in the production of _____.

a)

photosynthesis: carbon dioxide, G3P, and electrons that are given to photosystem II.

b)

photolysis: oxygen, hydrogen ions (protons), and electrons that are given to photosystem II.

c)

the Calvin cycle: carbon dioxide, G3P, and electrons that are given to photosystem II

d)

chemiosmosis: oxygen, hydrogen ions (protons), glucose and electrons that are given to photosystem II.

44.

As the electrons travel from photosystem II down the first electron transport chain, their energy is used to….

a)

form oxygen, water, NADPH, and glucose.

b)

pump hydrogen ions into the stroma, producing a concentration gradient that will later be used by an enzyme to form ADP and phosphate.

c)

pump hydrogen ions into the thylakoid space, producing a concentration gradient that will later be used by ATP synthase to form ATP.

d)

create glucose directly.

45.

Why do hydrogen ions flow from the thylakoid space to the stroma through ATP synthase?

a)

They are pumped actively through the ATP synthase. This uses ATP energy and causes the production of ADP and phosphate.

b)

They flow through the Calvin cycle and produce light.

c)

Hydrogen ions do not actually flow from the thylakoid space to the stroma. They flow the opposite way.

d)

They flow passively from the high to low concentration via facilitated diffusion. As they flow through ATP synthase, the enzyme spins and produces ATP.

46.

After electrons get excited by light a second time (at photosystem I), where do they go?

a)

They travel down a second electron transport chain and are donated to ADP, which is then converted to ATP.

b)

They remain excited and then travel to photosystem II where they get even more excited until they spontaneously combust.

c)

They travel down a second electron transport chain and are donated to NADP+ which becomes NADPH (an electron carrier).

d)

They travel down a second electron transport chain and are donated to oxygen which then bonds to hydrogen ions to form water.

47.
How many carbon atoms are in RuBP?
a)
2
b)
3
c)
4
d)
5
48.

what is the formula for glucose?

a)

C6H12O2

b)

C12H6O12

c)

C6H12O6

d)

C6O2H12

49.

What is special about RuBisCo?

a)

it helps with transferring ATP energy

b)

it its the main part of photosynthesis

c)

used in the Calvin cycle to catalyze the first major step of carbon fixation

d)

it is a molecule that joins with G3P to make glucose

50.

Which of the following is true?

a)

PS1 comes before PSII

b)

PSII comes before PS1

51.

The 5-Carbon molecule that the Calvin Cycle starts and ends with, is called _____________.

a)

PGA

b)

G3P

c)

RuBP

d)

RuDp

52.

True or False: The Calvin Cycle returns ADP and NADP+ to the light dependent phase.

a)

True

b)

False

53.

Electrons that are transported through the 'electron transport system' of the Light Reaction (through PSII and PSI) ultimately end up in...

a)

NADPH

b)

ATP

c)

Oxygen Gas

d)

Carbon Dioxide

54.
What is the function of NADP+?
a)
It absorbs light
b)
It is an electron carrier
c)
It is a light-reflecting pigment
d)
It acts as long-term energy storage
55.
What does an electron being "excited" mean?
a)
It has been released from a water molecule
b)
It has lost energy.
c)
It has gained energy.
d)
It has been accepted by an electron carrier.
56.

The energy lost by electrons as they move from PS II to PS I (through the electron transport chain) is used to

a)

add H+ to NADP to form NADPH

b)

move H+ from the stroma to the thylakoid space

c)

move H+ from the thylakoid space to the stroma

d)

move the electrons to PS I

57.
The H+ concentration gradient is used to 
a)
make NADPH
b)
split a water molecule
c)
generate ATP
d)
form water
58.

What is the name of the enzyme involved in ATP production?

a)

ATP synthase

b)

ADP synthase

c)

ATP generator

d)

ADP generator

59.
In green plants, the primary function of the Calvin cycle is to
a)
Use ATP to release carbon
b)
Split water to release oxygen.
c)
Construct simple sugars from carbon dioxide.
d)
Use NADPH to release carbon
60.

Which of the following is NOT a product of the Calvin Cycle?

a)

NADP+

b)

NADPH

c)

ADP

d)

G3P (to form glucose)

61.

The main function of the light-dependent reactions is to...

a)

trap sunlight energy as chemical energy

b)

synthesize glucose

c)

reflect green light

d)

produce oxygen gas

62.

The first 2 steps of the Calvin cycle use ATP and NADPH, in order to do WHAT?

a)

To add energy to the intermediates

b)

To confuse the intermediates

c)

There is no reason; it is absurd

d)

To remove energy from the intermediates

63.

What molecule adds phosphates to the intermediates in the Calvin cycle?

a)

NADPH

b)

NADP+

c)

ATP

d)

ADP

64.

What molecule donates a pair of high energy electrons to the intermediates in the Calvin cycle?

a)

NADPH

b)

NADP+

c)

ATP

d)

ADP

65.

What is the function of the enzyme "rubisco"?

a)

To attach ("affix") CO2 to RuBP

b)

To phosphorylate RuBP

c)

To rearrange 10 3C molecules to 6 5C molecules

d)

To synthesize glucose

66.

What type of photosynthesis do "normal" plants do?

a)

C3

b)

C4

c)

CAM

d)

none of these

67.

What type of water-conserving photosynthesis is performed by plants like corn, and moves the Calvin cycle to the bundle sheath cells instead of the mesophyll?

a)

C3

b)

C4

c)

CAM

d)

none of these

68.

What type of photosynthesis (carried out by cacti) conserves water by only opening stomata at night, and closing them during the day?

a)

C3

b)

C4

c)

CAM

d)

none of these

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