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Biology - Unit 2 - Semester 2 Review

Total questions: 81

Worksheet time: 45mins

Name
Class
Date
1.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and glucose
c)
oxygen and carbon dioxide
d)
oxygen and water
2.
What molecule absorbs sunlight for photosynthesis?
a)
chloroplast
b)
thylakoid
c)
grana
d)
chlorophyll
3.
Use the diagram to answer the question. Between which parts of the molecule must the bonds be broken to form an ADP molecule?
a)
A and B
b)
A and C
c)
B and C
d)
C and D
4.
Plants need carbon dioxide from their environment to produce glucose during which stage of photosynthesis? 
a)
The light-dependent stage
b)
The light-independent stage (The Calvin Cycle)
c)
The electron transport chain
d)
ATP formation
5.
Most plants appear green because chlorophyll
a)
absorbs green light.
b)
absorbs violet light.
c)
does not absorb green light.
d)
does not absorb violet light.
6.
Where do the light-dependent reactions occur? 
a)
thylakoid membrane
b)
stroma
c)
mesophyll
d)
mitochondria
7.
Where does the Calvin Cycle occur?
a)
thylakoid
b)
stroma
c)
lumen
d)
mitochondria
8.
True or False.   The calvin cycle can happen at night.
a)
true
b)
false
9.
TRUE or FALSE.  The calvin cycle can happen during the day.
a)
True
b)
false
10.
What is the name of the simple sugar that is produced in photosynthesis?
a)
Sucrose
b)
Dextrose
c)
Glucose
d)
Lactose
11.
In the Calvin Cycle, which enzyme helps keep the cycle going?
a)
Hydrolase
b)
Rubisco
c)
Pepsisco
d)
Re-starterase
12.
Which term is the part of photosynthesis when light energy is captured and transferred to a molecule, such as ATP?
a)
light- independent reactions
b)
cellular respiration
c)
light- dependent reactions
d)
 photosynthesis
13.
What supplies the electron that is lost in PS II?
a)
oxygen
b)
water
c)
glucose
d)
rubisco
14.
Chlorophyll is green because
a)
it absorbs green wavelengths of light
b)
it absorbs blue and yellow wavelengths of light
c)
it reflects green wavelengths of light
d)
it is an optical illusion caused by the transmission of light
15.

This enzyme helps add a phosphate do a depleted energy molecule.

a)
PS 2
b)
PS 1
c)
Electron Transport Chain
d)
ATP Synthase
16.
After the electron leave PS II, where does it go next?
a)
Electron Transport Chain
b)
NADPH Reductase
c)
PS I
d)
Stroma
17.
What is the first stop in photosynthesis process?
a)
Photosystem I
b)
Photosystem II
c)
Electron Transport Chain
d)
stroma
18.

What are the products of aerobic respiration?

a)

Carbon Dioxide and Energy

b)

Lactic Acid

c)

Water and Carbon Dioxide

d)

Glycogen and Carbon Dioxide

19.

What are the products of anaerobic respiration in a human cell?

a)

Energy and Lactic Acid

b)

Lactic Acid

c)

Lactic Acid and Carbon Dioxide

d)

Carbon Dioxide and Water

20.

What are the products of anaerobic respiration in plants and yeast?

a)

Lactic Acid and Carbon Dioxide

b)

Carbon Dioxide and Energy

c)

Ethanol and Energy

d)

Ethanol and Carbon Dioxide

21.

Which type of respiration releases more energy per gram of glucose?

a)

Aerobic

b)

Anaerobic

c)

They both release the same amount

22.

What is the chemical formula for glucose?

a)

C6H12O6

b)

C12H6O12

c)

C6O12H6

d)

6CH2O

23.

Where in the body does respiration take place? Select the best answer.

a)

The lungs

b)

The muscles

c)

All cells

d)

The blood

24.

What is the purpose of respiration? Select the best answer.

a)

To release the chemical energy stored in glucose

b)

To generate heat

c)

To produce energy

d)

To absorb oxygen by diffusion

25.

Plants do respiration...

a)

24 hours a day

b)

During the day time

c)

Never

d)

When they cannot photosynthesise

26.

The energy released in respiration is stored by creating which molecule?

a)

Glucose

b)

Lactic Acid

c)

ATP

d)

ADP

27.

What is the purpose of this chemical reaction in a cell:

ATP ----------> ADP + P

a)

To release energy immediately

b)

To produce energy immediately

c)

To pay back oxygen debt

d)

To break down lactic acid

28.

Where in a cell does aerobic respiration take place?

a)

Cytoplasm

b)

Ribosomes

c)

Mitochondria

d)

Nucleus

e)

Chloroplasts

29.

What type of cell does cell respiration happen in?

a)

Plant cells

b)

Animal cells

c)

Both

30.

Which of the following is a PRODUCT of cell respiration?

a)

glucose

b)

ATP (energy)

c)

oxygen

d)

water

31.

Which of these is a PRODUCT of photosynthesis?

a)

Glucose

b)

Water

c)

Sunlight

d)

Carbon Dioxide

32.

Which of the following is NOT a reactant of photosynthesis?

a)

carbon dioxide

b)

oxygen

c)

water

d)

sun energy

33.

What organelle uses light energy to make glucose during photosynthesis?

a)

chloroplast

b)

mitochondria

34.

What organelle breaks down glucose using oxygen to create energy in cell respiration?

a)

chloroplast

b)

mitochondria

35.

Two substances needed for aerobic respiration are:

a)

Glucose and water

b)

Glucose and carbon dioxide

c)

Glucose and oxygen

d)

water and carbon dioxide

36.

Structures that increase the surface of the inner membrane of the mitochondria are:

a)

cristae

b)

villi

c)

microvilli

d)

hair roots

37.

Part of the cell where glycolysis, the first stage of cellular respiration occurs is:

a)

cytoplasm

b)

matrix of the mitochondria

c)

cristae of mitochondria

d)

endoplasmic reticulum

38.

Place where Krebs cycle occurs in the cell is:

a)

cytoplasm

b)

matrix of the mitochondria

c)

cristae of mitochondria

d)

the outer membrane of mitochondria.

39.

Cell organelle where most reactions of cellular respiration occurs is the:

a)

ribosome

b)

mitochondria

c)

lysosome

d)

Gogi apparatus

40.

The electron transfer chain, the final stage of cellular respiration occurs in the:

a)

cristae of mitochondria

b)

matrix of mitochondria

c)

outer membrane of mitochondria

d)

the cytoplasm of the cell.

41.

What stage of cellular respiration produces the most number of ATP?

a)

Glycolysis

b)

Krebs cycle

c)

Electron transfer chain

d)

anaerobic respiration

42.

What statement is NOT correct about mitochondria?

a)

It has a double membrane

b)

The matrix contains several enzymes

c)

Substances cannot diffuse through its membranes.

d)

Cristae increase the surface area of inner membrane.

43.

What substance is not needed for anaerobic respiration?

a)

Carbon dioxide

b)

oxygen

c)

glucose

d)

enzymes

44.

What waste material is produced by both aerobic and anaerobic respiration?

a)

carbon dioxide

b)

lactic acid

c)

ethanol

d)

ATP

45.

One of the reasons why large numbers of mitochondria are found in muscle cells is because:

a)

muscles get lots of oxygen

b)

muscle cells require lots of energy.

c)

muscle cells can tolerate high levels of CO2

d)

muscle cells are larger than other body cells.

46.

Cells that carry out active transport contain large numbers of mitochondria because:

a)

Active transport requires ATP

b)

Active transport happens in the mitochondria

c)

the double membranes of mitochondria are not permeable

d)

active transport uses CO2 produced during respiration.

47.

Where does the Krebs cycle take place?

a)

mitochondrial matrix

b)

cristae

c)

cytosol

d)

chloroplast

48.

What is the starting material for the Krebs cycle?

a)

glucose

b)

pyruvate

c)

acetyl CoA

d)

G3P

49.

How much of the glucose is left after the Krebs cycle?

a)

0%

b)

25%

c)

50%

d)

75%

50.

How are electrons extracted during the Krebs cycle transferred to the electron transport chain?

a)

NADH

b)

FADH2

c)

ATP

d)

CO2

51.

How many turns of the Krebs cycle per glucose molecule?

a)

1

b)

2

c)

3

d)

4

52.

Predict the effect of an inhibitor that stops the oxidation of NADH or FADH2.

a)

Increase of cellular respiration; more ATP is synthesized

b)

Decrease of cellular respiration; more ATP is synthesized

c)

Increase of cellular respiration; less ATP is synthesized

d)

Decrease of cellular respiration; less ATP is synthesized

53.
How many G3P molecules make one molecule of glucose? 
a)
1
b)
2
c)
3
d)
4
54.
What happens to NADPH and ATP after they are used in the Calvin Cycle?
a)
they recycle back to the light reactions
b)
they are used to make G3P
55.
What happens to the remaining G3P molecules in the last step of the dark reactions?
a)
They are used to make glucose.
b)
They are reshuffled to make CO2 by adding ATP.
c)
They exit the cycle.
d)
They are reshuffled to make RuBP by adding ATP. 
56.
In the Calvin Cycle, carbon from CO2 is added to one molecule of RuBP to create _________.
a)
RUDP
b)
An Unstable 6 Carbon Molecule
c)
PGA
d)
2 3-carbon molecules
57.
The Calvin Cycle occurs in the ___________.
a)
Stroma
b)
Thylakoid Membrane
c)
Enzyme ATP Synthase
d)
Chlorophyll
58.
The 5-Carbon molecules that the Calvin Cycle starts and ends with, is called _____________.
a)
PGA
b)
G3P
c)
RuBP
d)
RuDp
59.
After 12 G3P molecules are created, 10 are used to regenerate _________, while the other 2 are used to create __________.
a)
RuBP, C6H12O6
b)
Glucose, CO2
c)
ATP, Glucose
d)
Glucose, RUBP
60.

Which enzyme joins CO2 and RuBP?

a)

NADP+ reductase

b)

RUBISCO

c)

ATP synthase

d)

none of the above

61.

Where do NADP+ and ADP produced in the Calvin cycle go?

a)

Back to the light reactions

b)

out of the chloroplast

62.
Which of the following is NOT a reactant of the Calvin Cycle?
a)
NADPH
b)
ATP
c)
Oxygen
d)
Carbon dioxide
63.
How many carbons does G3P have?
a)
1
b)
2
c)
3
d)
6
64.

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 sugar from carbon dioxide.

d)

Use NADPH to release carbon

65.

To bring in nonliving carbon (CO2) and use it to make organic compounds is a process called _______________.

a)

carbon fixation

b)

cellular respiration

c)

catabolic reactions

d)

mitosis

66.
The two main stages of photosynthesis are the
a)
light reactions and respiration
b)
dark reactions and the Calvin cycle 
c)
light reactions and the Calvin cycle
d)
dark reactions and fermentation
67.
What does NADPH do? 
a)
carries electrons to the Calvin cycle
b)
carries electrons to the ETC
68.
When our body is low in or missing an essential nutrient this is called a 
a)
deficiency
b)
devise
c)
without
d)
deficit
69.
Which vitamin can be obtained from sunlight?
a)
Vitamin A
b)
Vitamin B
c)
Vitamin C
d)
Vitamin D
70.
Beta-carotene and retinol are two types of vitamin ______.
a)
Vitamin A
b)
Vitamin B
c)
Vitamin C
d)
Vitamin D
71.
Plants absorb minerals from the _______.
a)
sun
b)
soil
c)
grass
d)
water
72.
Proteins, fats, and carbs are known as _______________ because they are needed in large amounts.
a)
micronutrients
b)
masconutrients
c)
macronutrients
d)
micros
73.
Which mineral helps build strong bones?
a)
calcium
b)
vitamin C
c)
collagen
d)
chromium
74.
Woman are more at risk for anemia.
a)
True
b)
False
75.
Minerals that are needed in small amounts are called _________________.
a)
macro minerals
b)
zirconia minerals
c)
trace minerals
d)
water soluble minerals
76.
The bioavailability of iron is higher in meat than in vegetables.
a)
True
b)
False
77.
Trace minerals are needed in amounts greater than 20 mg.
a)
True
b)
False
78.
A deficiency of iodine can cause your body to develop a goiter.
a)
True
b)
False
79.
Potassium helps with nerve and heart function.
a)
True
b)
False
80.
Micronutrients are needed in large amounts.
a)
True
b)
False
81.
Vitamins B and C are considered to be water soluble.
a)
True
b)
False

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