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Pre-AP Biology: Photosynthesis

Total questions: 58

Worksheet time: 1hrs 1mins

Name
Class
Date
1.
Which organelle performs PHOTOSYNTHESIS?
a)
Chloroplast
b)
Mitochondria
2.
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
3.
Which organisms perform Photosynthesis?
a)
Only Autotrophs
b)
Only Heterotrophs
c)
Autotrophs and Heterotrophs
4.
What is the pigment in chloroplasts that performs photosynthesis?
a)
Chlorosynthesis
b)
Chlorophyll
c)
ADP
d)
Electron Transport
5.
Which gas is removed from the atmosphere during photosynthesis?
a)
hydrogen
b)
oxygen
c)
nitrogen
d)
carbon dioxide
6.
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.
7.
What gas is released by plants during photosynthesis?
a)
sulfur
b)
carbon dioxide
c)
oxygen
d)
hydrogen
8.
What is the purpose of photosynthesis?
a)
make glucose
b)
make ATP
c)
make light
d)
release carbon dioxide
9.
What do guard cells do?
a)
Control the opening and closing of stomata
b)
Take water from roots to leaves
c)
Absorb water from soil
10.
Starch is a polymer (very long molecule made of repeating units or monomers). What is the repeating unit (monomer) in starch?
a)
Cellulose
b)
Amino acids
c)
Glucose
11.

If the proton (H+) pump in the thylakoid was not working which molecule could not be made during the light reaction?

a)

NADPH

b)

ATP

c)

Water

d)

Oxygen gas

12.

What is FALSE about the calvin cycle

a)

uses the light reactions products

b)

produces a three carbon sugar (G3P)

c)

produces carbon dioxide

d)

produces NADP+

13.
What is the primary function of the light reactions of photosynthesis?
a)
To produce glucose
b)
To produce NADPH and ATP
c)
To use ATP
d)
To produce RuBP
14.
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
15.
Which of the following molecules is not needed for the Calvin Cycle?
a)
CO2
b)
ATP
c)
NADPH
d)
H2O
16.

The light reactions occur in the ________ and the light independent reactions take place in the ________.

a)

Chloroplast / thylakoid membrane

b)

stroma / thylakoid

c)

mesophyl / stomata

d)

thylakoid membrane / stroma

17.
Where does the carbon come from that is used to form glucose?
a)
The soil
b)
CO2 in the air
c)
From other carbohydrates
d)
Calvin Cycle
18.
Where is glucose synthesized
a)
Photosystem II
b)
Photosystem I
c)
Calvin Cycle
d)
Glycolysis
19.
When oxygen is released as a result of photosynthesis, it is a direct by-product of
a)
reducing NADP+
b)
splitting water molecules
c)
chemiosmosis
d)
electron transfer in photosystem II and I
20.
The H+ concentration gradient is used to 
a)
make NADPH
b)
split a water molecule
c)
generate ATP
d)
form water
21.
Where does a plant absorb the water that it uses during photosynthesis?
a)
Leaves
b)
Stem
c)
Roots
d)
Petals
22.

Where does carbon dioxide enter plants?

a)

Roots

b)

Stomata

c)

Stem

23.

Which of the following statements best represents the relationships between the light reactions and the Calvin cycle?

a)

The light reactions provide ATP and NADPH to the Calvin cycle, and the Calvin cycle returns ADP, ℗i, and NADP+ to the light reactions.

b)

The light reactions provide ATP and NADPH to the carbon fixation step of the Calvin cycle, and the Calvin cycle provides water and electrons to the light reactions.

c)

The light reactions supply the Calvin cycle with CO2 to produce sugars, and the Calvin cycle supplies the light reactions with sugars to produce ATP.

d)

The light reactions provide the Calvin cycle with oxygen for carbon fixation, and the Calvin cycle provides the light reactions with sugars to produce ATP.

24.
What does ATP synthase do?
a)
Create ATP in chemiosmosis.
b)
Break down ATP in chemiosmosis.
c)
Break down NADPH. 
d)
Create NADPH.
25.

Electrons become energized during photosynthesis when

a)

they are absorbed by water

b)

they undergo carbon fixation

c)

they are struck with light energy

d)

they are incorporated into oxygen

26.

Where does the light independent reaction occur?

a)

thylakoid

b)

stroma

c)

lumen

d)

mitochondria

27.
What are pigments?
a)
The jelly material inside of the Chloroplast
b)
The sun absorbing material on the Thylakoids
c)
The green membrane of the chloroplast
d)
A fresh tasting pig
28.
Light reaction is also known as
a)
Thylakoid
b)
Calvin Cycle
c)
Light Dependant
d)
Dark Reaction
29.

Dark reaction is also known as (pick two)

a)

Thylakoid

b)

Calvin Cycle

c)

Light Dependant

d)

Light Independant

30.
What organelle contains chlorophyll? 
a)
Chloroplast
b)
Chloropleast
c)
Cholorphraust
d)
Chloropastion
31.
How many sugar molecules are produced from every six molecules of carbon dioxide that enter the Calvin cycle?
a)
1
b)
3
c)
6
d)
12
32.
Animal cells do not have chloroplasts.
a)
TRUE
b)
FALSE
33.

The ETC is located in the

a)

stroma

b)

thylakoid membrane

34.
During what stage does the G1, S and G2 phases happen?
a)
Interphase
b)
M phase
c)
Mitosis
d)
Cytokinesis
35.
During what phase of the cell cycle is DNA replicated?
a)
G1 phase
b)
S phase
c)
G2 phase
d)
M phase
36.
Structure (b) is a ____.
a)
chromosome
b)
chromatid
c)
centromere
37.
The phase of mitosis in which the sister chromatids separate from each other
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
38.
In mitosis, the two resulting cells are
a)
different from the starting cell and identical to each other.
b)
different from the starting cell and different from each other.
c)
identical to the starting cell and different from each other.
d)
identical to the starting cell and identical to each other.
39.
Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have ...
a)
16 chromosomes.
b)
46 chromosomes.
c)
8 chromosomes.
d)
4 chromosomes.
40.

If there are 10 chromosomes at G1, how many chromatids are at G2?

a)

10

b)

5

c)

15

d)

20

41.
sequence
a)
C,D, B, A, F, E
b)
D,A,F,C,E,B
c)
B,E,C,F,A,D
d)
C,B,D,A E,F
42.

The following phase is

a)

Anaphase

b)

Cytokinesis

c)

Telophase

d)

Metaphase

43.
a)
Cytokinesis
b)
Interphase
c)
Anaphase
d)
Metaphase
44.

The following phase is

a)

Anaphase

b)

Cytonkinesis

c)

Interphase

d)

Prophase

45.
Which of the following responses is a plant growing toward or leaning toward light?
a)
thigmotropism
b)
hydrotropism
c)
phototropism
d)
gravitropism
46.
Which of the following properties of water enables molecules to cling together as they move from the roots to the leaves of plants?
a)
Water expands as it freezes.
b)
Water is an excellent solvent.
c)
Water exhibits cohesive behavior.
d)
Water moderates temperature.
47.
Capillary action is the result of adhesion. Which aspect of water is responsible for this?
a)
Nonpolar covalent bonds enable water to dissolve other substances.
b)
Polar covalent bonds join molecules of water to other substances.
c)
Hydrogen bonds form between water and another substance.
d)
Ionic bonds enable electrons to flow through water and into another substance.
48.
Some insects can stand on the surface of calm water. Their feet push the surface of the water down slightly, but they do not break the surface. Why?
a)
The insects are light enough so they do not break the hydrogen bonds holding the water molecules together
b)
The insects actually use their wings to hover slightly above the water’s surface and they only skim it with their feet.
c)
The insect’s feet are non-polar, so they are repelled by the polar water molecules and are pushed away from the water’s surface.
d)
The insects are small enough to see the individual water molecules, so they are able to step carefully from one molecule to the next
49.
What term describes when water is attracted to other substances?
a)
Cohesion
b)
Adhesion
c)
Capillary Action
d)
Surface Tension
50.
Attractions between water molecules due to polarity are called:
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
51.

A water molecule is a ________ molecule, which has one oxygen that has a slight __________ charge and two hydrogens that have a slight ___________ charge.

a)

nonpolar, positive, negative

b)

polar, positive, negative

c)

polar, negative, positive

d)

nonpolar, negative, positive

52.

HIV attacks

a)

Red blood cells

b)

White blood cells

c)

The bone marrow

d)

Antibodies

53.

Enzymes

a)

Speed up chemical reactions

b)

Act as carbohydrates in reactions

c)

Are lipids

d)

Cannot be reused

54.
Which statement regarding viruses is true?
a)
a virus can only reproduce inside of a living cell
b)
viruses do not contain DNA
c)
viruses are unicellular
d)
viruses are generally larger than cells
55.
What feature do viruses have in common with animal cells?
a)
ability to form proteins at the ribosomes
b)
existence of lipids in cell membranes
c)
presence of genetic code in nucleic acid
d)
production of energy by a mitochondrion
56.
Which best describes the basic structure of a virus?
a)
nucleic acid strand surrounded by a protein coat
b)
a tail surrounded by a protein coat
c)
a tail surrounded by a carbohydrate coat
d)
nucleic acid strand surrounded by a carbohydrate coat
57.
________ is used to prevent viral diseases while _______ are used to kill bacteria. 
a)
vaccine; antibiotics
b)
antibiotics; vaccine
c)
antibiotics; antibiotics
58.

What happens after a virus enters a cell

a)

Virus goes in and leaves the host cell

b)

Virus quickly kills the host cell

c)

Virus inject the nucleic acid into the host cell, and the nucleic acid integrates into the host cell DNA, and starts replicating

d)

Bacteria injects DNA into a host cell

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