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AP- Photosynthesis and Respiration

Total questions: 92

Worksheet time: 23hrs 0mins

Name
Class
Date
1.
Which process is the largest contributor to the release of CO2 
a)
Citric Acid Cycle or Krebs Cycle
b)
Pyruvate Oxidation
c)
Glycolysis
d)
Oxidative Phosphorylation 
2.
Where does cellular respiration take place in eukaryotic cells?
a)
Mitochondria
b)
Chloroplast
c)
Rough ER
d)
Cell Membrane
3.
How many membranes does a mitochondria have?
a)
1
b)
2
c)
3
d)
4
4.
Which of the three steps of cellular respiration is anaerobic?
a)
Glycolysis
b)
Citric Acid Cycle
c)
Kreb's Cycle
d)
Electron Transport Chain
5.
Does the mitochondria have its own DNA?
a)
Yes!
b)
No!
6.
Aerobic means...?
a)
Needing oxygen or air
b)
Not needing oxygen or air
c)
Photosynthesis
d)
Dancing
7.
What does ATP stand for?
a)
Adenosine Triphosphate
b)
Deoxyribonucleic acid
c)
Ribonucleic acid
d)
Ants Thinking about Pasta
8.
In what step of cellular respiration is glucose broken down?
a)
Aerobic Respiration
b)
Krebs Cycle
c)
Electron Transport Chain
d)
Glycolysis
9.

Which step of aerobic cellular respiration makes the most ATP?

a)
Glycolysis
b)
Krebs Cycle
c)
Electron Transport Chain
d)
Light Dependent Reactions
10.

Which of the following is NOT a stage of cellular respiration?

a)

Glycolysis

b)

Fermentation

c)

Krebs cycle

d)

Electron transport

11.

Which of these processes takes place in the cytoplasm of a cell?

a)

Electron transport

b)

Glycolysis

c)

Krebs cycle

d)

Photosynthesis

12.

The Krebs cycle does NOT occur if

a)

oxygen is present

b)

oxygen is not present

c)

glycolysis occurs

d)

carbon dioxide is present

13.

In cellular respriration, high-energy electrons that move down the electron transport chain ultimately provide the energy needed to

a)

transport water molecules across the membrane.

b)

convert ADP molecules into ATP molecules.

c)

convert carbon dioxide into water molecules.

d)

break down glucose into pyruvic acid molecules.

14.
What does ATP synthase do?
a)
Create ATP in chemiosmosis.
b)
Break down ATP in chemiosmosis.
c)
Break down NADPH. 
d)
Create NADPH.
15.
Which passes high energy electron into the electron transport chain
a)
NADH & FADH2
b)
ATP & ADP
c)
citric acid
d)
acetyl CoA
16.
The final electron acceptor in respiration is ___ that mixes with ___ to produce ___.
a)
water : hydrogen : oxygen
b)
hydrogen : oxygen : water
c)
hydrogen : water : oxygen
d)
oxygen : hydrogen : water
17.

What are the 5 stages of cellular respiration in order? (**Link reaction refers to the formation of intermediate A.CoA from pyruvate)

a)
Krebs Cycle, Glycolysis, Link Reaction, Electron Transport Chain, Chemiosmosis
b)
Chemiosmosis, Glycolysis, Link Reaction, Electron Transport Chain, Krebs Cycle
c)
Electron Transport Chain, Chemiosmosis, Glycolysis, Krebs Cycle, Link Reaction
d)
Glycolysis, Link Reaction, Krebs Cycle, Electron Transport Chain, Chemiosmosis
18.
What process needs high energy electron carriers (NADH and FADH2) to begin?
a)
Electron Transport Chain
b)
Link Reaction
c)
Chemiosmosis
d)
Glycolysis
19.
Which process releases the most Carbon Dioxide?
a)
Chemiosmosis
b)
Krebs Cycle
c)
Electron Transport Chain
d)
Glycolysis
20.
Which process does not occur in aerobic conditions? 
a)
Fermentation
b)
Pyruvate Oxidation
c)
Citric Acid Cycle or Krebs cycle 
d)
Oxidative Phosphorylation 
21.

Reactants capable of interacting to form products in a chemical reaction must first overcome a thermodynamic barrier known as the reaction's

a)

equilibrium point.

b)

endothermic level.

c)

entropy.

d)

activation energy.

22.

The ATP made during glycolysis is generated by

a)

chemiosmosis.

b)

electron transport.

c)

substrate-level phosphorylation.

d)

oxidation of NADH to NAD+.

23.

The oxygen consumed during cellular respiration is involved directly in which process or event?

a)

accepting electrons at the end of the electron transport chain

b)

the phosphorylation of ADP to form ATP

c)

glycolysis

d)

the citric acid cycle

24.

In addition to ATP, what are the end products of glycolysis?

a)

CO2 and pyruvate

b)

CO2 and NADH

c)

NADH and pyruvate

d)

CO2 and H2O

25.

The ATP made during fermentation is generated by which of the following?

a)

the electron transport chain

b)

substrate-level phosphorylation

c)

aerobic respiration

d)

oxidative phosphorylation

26.

Where are the molecules of the electron transport chain for photosynthesis found in plant cells?

a)

thylakoid membranes of chloroplasts

b)

outer membrane of mitochondria

c)

matrix of mitochondria

d)

cytoplasm

27.

Which of the following are products of the light reactions of photosynthesis that are utilized in the Calvin cycle?

a)

H2O and O2

b)

CO2 and glucose

c)

ADP and NADP+

d)

ATP and NADPH

28.
Where does glycolysis take place in the cell?
a)
Mitochondria
b)
Cytosol
c)
Cell Membrane
d)
Mitochondrial Matrix
29.
When NADH is reduced and oxidized, which response best describes what is lost or gained? 
a)
only Electrons 
b)
2 stable Hydrogen atoms 
c)
Pair of electrons 
d)
2 ATP 
30.
Pyruvate Oxidation creates a specific numbered carbon molecule at the end of it's process. What is the number of carbons for this molecule? 
a)
2
b)
3
c)
6
d)
1
31.
What is the main job of the electron carriers in cellular respiration? 
a)
Transport electrons and hydrogen atoms to the electron transport chain 
b)
Capture energy throughout the process of cellular respiration
c)
Provide the reactants for the process of cellular respiration
d)
Pump positive hydrogen ions and shuttle electrons across the electron transport chain and contribute to chemiosmosis
32.
How many carbons are in glucose?
a)
2
b)
4
c)
6
d)
8
33.
How many carbons are in pyruvate?
a)
1
b)
2
c)
3
d)
4
34.
How many carbons are in Acetyl-CoA
a)
1
b)
2
c)
3
d)
4
35.
Where does the Citric Acid Cycle (Krebs Cycle) happen in the cell?
a)
Cytosol
b)
Inner Mitochondrial Membrane
c)
Cell Membrane
d)
Mitochondrial Matrix
36.
Where is the Electron Transport Chain in the cell?
a)
Cytoplasm
b)
Cell Membrane
c)
Inner Mitochondrial Membrane
d)
Mitochondrial Matrix
37.

What is the correct equation for cellular respiration?

a)

6O2 + C6H12O6 -> 6CO2 + 6H2O + Energy

b)

6O2 + C6H12O6 + Energy -> 6CO2 + 6H2O

c)

6CO2 + 6H2O -> 6O2 + C6H12O6 + Energy

d)

6CO2 + 6H2O + Energy -> 6O2 + C6H12O6

38.

Where does Citric Acid cycle take place?

a)

Cytosol

b)

Mitochondrial Matrix

c)

Mitochondrial Cristae

d)

Stroma

e)

Thylakoid Membrane

39.

What is the input of the Citric Acid cycle?

a)

pyruvate

b)

acetyl CoA

c)

glucose

d)

NADH

40.

Where does oxidative phosphorylation take place?

a)

Cytosol

b)

Mitochondrial Matrix

c)

Mitochondrial Cristae

d)

Stroma

e)

Thylakoid Membrane

41.

What is NADH?

a)

an electron carrier

b)

a protein

c)

a sugar

d)

a nucleotide

42.

Pyruvate, the end product of glycolysis, enters the citric acid cycle after it has is converted to _____________.

a)

Iso-citrate

b)

Fumerate

c)

Acetyl-CoA

d)

Acetaldehyde

43.
In the final step of glycolysis ATP is made through the process of:
a)
Substrate Level Phosphorylation
b)
Oxidative Phosphorylation
c)
Photo-Phosphorylation
d)
RedOx Reactions
44.
The "regenerator" of the Krebs Cycle is:
a)
Oxaloacetate
b)
Acetyl-CoA
c)
Citrate
d)
α-Ketoglutarate
45.
Before entering Krebs Cycle, pyruvate is:
a)
Oxidized
b)
Reduced
c)
Isomerized to Acetyl-CoA
d)
Phosphorylated
46.
How many NADH molecules are produced by a molecule of glucose through the Krebs' Cycle?
a)
2
b)
3
c)
4
d)
6
47.
Prior to entering the Krebs Cycle, each pyruvate molecule loses electrons, hydrogen ions, and a carbon, forming an energy-rich molecule of
a)
Acetyl-CoA
b)
Citrate
c)
Oxaloacetate
d)
Malate
48.
After the Krebs Cycle only a small portion of the energy of glucose has been converted to ATP. At this point the majority of usable energy is contained in
a)
NADH and FADH2
b)
Carbon Dioxide 
c)
Acetyl-CoA
d)
Citrate
49.

Hydrogen ions are pumped from the __________ to the ___________.

a)

matrix; intermembrane space

b)

intermembrane space; matrix

c)

matrix; cytoplasm

d)

intermembrane; cytoplasm

50.

The final electron acceptor in electron transport chain is

a)

NAD+

b)

FAD

c)

Oxygen

d)

Water

51.

H+ move down their concentration gradient by ___________ back into the matrix.

a)

osmosis

b)

facilitated diffussion

c)

simple diffusion

d)

active transport

52.

This process uses NADH and FADH2 to produce ATP

a)

fermentation

b)

glycolysis

c)

krebs cycle

d)

oxidative phosphorylation

53.
The ETC makes water.  To make this water, where do the hydrogen atoms come from?
a)
glucose
b)
pyruvate
c)
NADH and FADH2
d)
oxygen
54.

Which step of cellular respiration does NOT produce ATP?

a)

Glycolysis

b)

Pyruvate processing

c)

Citric acid cycle

d)

Oxidative phosphorylation

55.

Which gas is needed for Cellular Respiration?

a)

Oxygen

b)

Carbon Dioxide

c)

Water

d)

Glucose

56.

Which gas is needed for Photosynthesis?

a)

Oxygen

b)

Carbon Dioxide

c)

Water

d)

Glucose

57.

What is the main purpose for Photosynthesis?

a)

Make ATP

b)

Make Glucose

c)

Make Oxygen

d)

Make Water

58.

What is the main purpose for Cellular Respiration?

a)

Make ATP

b)

Make Glucose

c)

Make Oxygen

d)

Make Water

59.

What is the original source of energy for living organisms?

a)

The sun

b)

The food we eat

c)

The soil

d)

Plants

60.

What are the "air holes" on the bottom of leaves that allow for gas and water vapor exchange?

a)

Stomata

b)

Chloroplast

c)

Chlorophyll

d)

Cell Membrane

61.

What could cause stomata to close?

a)

Needing to conserve water

b)

Because the plant is scared

62.

How do plants get the glucose they need for Cellular Respiration?

a)

By consuming carbohydrates

b)

By making it via photosynthesis

c)

Be sleeping

d)

By breathing

63.

How do animals get the glucose they need for Cellular Respiration?

a)

By consuming carbohydrates

b)

By making it via photosynthesis

c)

Be sleeping

d)

By breathing

64.

What biomolecule is Glucose?

a)

Carbohydrates

b)

Nucleic Acids

c)

Proteins

d)

Lipids

65.

What is the green pigment that absorbs light for photosynthesis?

a)

Chlorophyll

b)

Thylakoid

c)

Chloroplast

d)

Mitochondria

66.

Which process will proceed with or without oxygen in eukaryotic cells?

a)

ETC

b)

Glycolysis

c)

Krebs cycle

d)

Citric Acid cycle

67.

Besides ATP, what are the end products of glycolysis?

a)

carbon dioxide and water

b)

carbon dioxide and pyruvate

c)

water and pyruvate

d)

NADH and pyruvate

68.

A molecule that is phosphorylated by ATP:

a)

has an increased chemical reactivity; it is primed to do cellular work.

b)

has a decreased chemical reactivity; it is less likely to provide cellular work.

c)

has been oxidized as a result of a redox reaction involving the gain of an inorganic phosphate

d)

has been reduced as a result of a redox reaction involving the loss of an inorganic phosphate

e)

has less energy than before its phosphorylation and therefore less energy for cellular work.

69.

All of the following are functions of the citric acid cycle EXCEPT:

a)

production of ATP

b)

production of NADH

c)

production of FADH2

d)

release of carbon dioxide

e)

reducing oxygen and forming water

70.

Choose the components of ATP.

i) Adenine

ii) Ribose

iii) Guanine

iv) Phosphate

a)

i, ii and iii

b)

i, ii and iv

c)

ii, iii and iv

d)

ii and iv only

71.

ATP synthase is found on the _______________________ of mitochondria.

a)

matrix

b)

inner membrane

c)

outer membrane

d)

intermembrane space

72.

Pyruvate is decarboxylated and is oxidised to form acetate that will combine with coenzyme A to form acetyl coenzyme A.

a)

True

b)

False

73.

Pyruvate oxidation is the stage in cellular respiration that links glycolysis to oxidative phosphorylation.

a)

True

b)

False

74.
Photo means
a)
sun
b)
light
75.
Synthesis means 
a)
to make
b)
to tear apart
76.

Which of the following processes or structures is mismatched with its location?

a)

ETC - thylakoid membrane

b)

Calvin cycle - stroma

c)

ATP synthase - double membrane surrounding chloroplast

d)

splitting of water - thylakoid space

77.

A plant is growing under bright lights in a sealed container. What will happen to the atmosphere in the chamber?

a)

The amount of O2 will increase and the amount of CO2 will decrease

b)

The amount of O2 will decrease and the amount of CO2 will increase

c)

The amount of O2 and CO2 will incrase

d)

The amounts of both O2 and CO2 will decrease.

78.

The immediate product of the Calvin cycle is glyceraldehyde-3-phosphate (G3P), a 3-carbon molecule. What is MOST of this G3P used for?

a)

It provides the energy required to synthesize ATP

b)

It is used as the starting point for the synthesis is 6-carbon sugars, sugars as glucose

c)

It is used to regenerate the RuBP that is required for the Calvin Cycle.

d)

It is combined with CO2 to produce 4-carbon molecules such as oxaloacetate

79.

Accessory pigments within chloroplasts are responsible for

a)

driving the splitting of water molecules

b)

absorbing photos of different wavelengths of light and passing that energy to P680 or P700

c)

providing electrons to the reaction-center of chlorophyll a molecules

d)

pumphing H+ across the thylakoid membrane to create a proton-motive force.

80.

The enzyme rubisco

a)

uses NADPH and ATP to make G3P

b)

fixes CO2 to RuBP

c)

uses ATP to regenerate RuBP

d)

removes electrons from water

81.

When electrons move closer to a more electronegative atom,

a)

energy is released

b)

chemical energy is stored

c)

a proton gradient is established

d)

water is produced

82.

In which of the following conversions is the first molecule becoming reduced to the second molecule?

a)

pyruvate --> acetyl CoA

b)

glucose --> pyruvate

c)

NADH + H+ --> NAD+ + 2H

d)

pyruvate to lactate

83.

Which of the following reactions is INCORRECTLY paired with its location?

a)

ATP synthesis - inner membrane of the mitochondrion, mitochondrial matrix and cytosol

b)

fermentation - cell cytosol

c)

glycolysis - cell cytosol

d)

citric acid cycle - cristae of mitochondrion

84.

In which organelle does the citric acid cycle occur?

a)

chloroplast

b)

mitrochondrion

c)

endoplasmic reticulum

d)

nucleus

85.

Which of the following compounds produces the most ATP when completely oxidized to CO2?

a)

acetyl CoA

b)

glucose

c)

pyruvate

d)

fructose-1,6-bisphosphate

86.

in the ETC, H+ ions are pumped to

a)

the intermembrane space

b)

the matrix of the mitochondrion

c)

the critic acid cycle

d)

the cytoplasm

87.

The energy required for chemiosmotic synthesis of ATP is provided by

a)

a gradient of hydrogen ions

b)

a gradient of sodium ions

c)

ADP

d)

water

88.

Which of the following statements correctly describes a metabolic effect of cyanide, a poison that blocks the passage of electrons along the ETC?

a)

The pH of the intermembrane space becomes much lower than normal.

b)

Alcohol would build up in the mitochondria.

c)

NADH supplies would be exhausted, and ATP synthesis would cease.

d)

No proton gradient would be produced and ATP synthesis would cease.

89.

The citric acid cycle is best described as

a)

the principle site for ATP synthesis within the cell

b)

the process by which CO2 is fixed into stable organic molecules in plants

c)

the process in which oxygen is required during respiration

d)

a process that stores chemical energy primarily in the form of intermediates such as FADH2 and NADH.

90.

Glucose made from six radioactively labeled carbon atoms is fed to yeast cells in the absence of oxygen. How many molecules of radioactive alcohol (C2H5OHm - ethanol) are produced from each molecule of glucose?

a)

0

b)

1

c)

2

d)

3

91.

Fats and proteins can be used as fuel in the cell because they

a)

can be converted to glucose by enzymes

b)

can be converted to intermediates of glycolysis or the citric acid cycle

c)

can pass through the mitochondrial membrane to enter the citric acid cycle

d)

contain more energy than glucose

92.

Brown fat, which is found in newborn infants and hibernating mammals, has uncoupler protons that, when activated, make the inner mitochondrial membrane leaky to H+. What is the function of brown fat?

a)

It produces more ATP than does regular fat and is also found in the flight muscles of ducks and geese, providing more energy for long distance migrations.

b)

It lowers the pH of the intermembrane space, which results in the production of more ATP per gram than is produced by the oxidation of glucose or regular fat tissue.

c)

Because it dissipates the proton gradient, it generates heat through cellular respiration without producing ATP, thereby raising the body temperature

d)

Its main function is insulation in the endothermic animals in which it is common.

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