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Aerobic Respiration

Total questions: 40

Worksheet time: 18mins

Name
Class
Date
1.
What type of respiration requires oxygen?
a)
Aerobic
b)
Anaerobic
2.
What type of respiration does not require oxygen?
a)
Aerobic
b)
Anaerobic
3.

Which type of respiration is most efficient, ie produces most energy when the same fuel is used?

a)

Aerobic

b)

Anaerobic

4.

Where in the cell does aerobic respiration take place in a bacterium?

a)

Nucleus

b)

Cytoplasm

c)

Mitochondria

d)

Cell membrane

5.
The purpose of cellular respiration is to make
a)
food from energy
b)
ATP from glucose
c)
heat for the organism
d)
oxygen
6.
Aerobic respiration produces how many ATP molecules
a)
2
b)
26
c)
36
d)
50
7.

Where in the bacterial cell, does Glycolysis occur?

a)

cytoplasm

b)

mitochondria

8.
When is Oxygen taken in by the cells?
a)
Kreb's Cycle
b)
Calvin Cycle
c)
ETC
9.

Of the three stages of respiration, at which one is CO2 released?

a)

Kreb's Cycle

b)

Calvin Cycle

c)

ETC

10.
ATP is 
a)
Adenosine Diphosphate
b)
Adenosine Triphosphate
c)
not an energy molecule
d)
Adenotriplet phosphate
11.
The energy is stored 
a)
in the carbon bonds
b)
in the phosphate bonds
c)
in the hydrogen bonds
d)
in all of thesse
12.
What are the reactants for cellular respiration?
a)
glucose and carbon dioxide
b)
water and glucose
c)
glucose and ATP
d)
glucose and oxygen
13.
Why is oxygen so important for aerobic respiration?
a)
It is the final electron acceptor which increases the H+ concentration gradient
b)
It is the final electron acceptor which maintains the H+ concentration gradient
c)
It is the final proton acceptor which maintains the oxygen concentration gradient
d)
It is the final enzyme acceptor which maintains the H+ concentration gradient
14.
What is the purpose of the Krebs' cycle?
a)
To  make the electron carriers
b)
To make ATP
c)
To break down glucose
d)
To break down ADP
15.
Why is cyanide deadly?
a)
It prevents the break down of glucose
b)
It prevents the break down of ATP
c)
It prevents the electrons from being transported in the electron transport 
d)
It helps produce carbon dioxide
16.
What is the waste energy from respiration given off as?
a)
Heat
b)
Light
c)
Sound
d)
Kinetic
17.

What is the function of a carbohydrate?

a)

Quick energy

b)

Movement

c)

Stores genetic information

d)

Speeds up reactions

18.
What are the products of anaerobic respiration?
a)
Glucose and oxygen
b)
Carbon dioxide and water
c)
Lactic acid
d)
Carbon monoxide
19.

Where does glycolysis take place in all cells?

a)

Cytoplasm

b)

Mitochondrion

c)

Endoplasmic Reticulum

d)

Ribosomes

20.

What is the end product of glycolysis?

a)

Pyruvate

b)

Glucose

c)

GA-3-p

d)

Fructose

21.
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
22.
NADH is produced by the oxidation of:
a)
G3P
b)
DHAP
c)
PEP
d)
1,3 BPG
23.
What is the function of NAD+?
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
24.

After the NAD+ receives electrons, what does it change to?

a)

ATP

b)

NADH

c)

ADP

25.

How many ATP molecules are required to start glycolysis?

a)

Four

b)

Three

c)

Two

d)

One

26.
The number of ATP molecules produced out of Krebs Cycle is:
a)
2
b)
3
c)
4
d)
0
27.

ATP is made through which of the following mechanisms in the Kreb's Cycle?

a)

Substrate-level phosphorylation

b)

Oxidative phosphorylation

c)

Photophosphorylation

d)

None of these

28.

NADH and FADH2

a)

carry energy/electrons to the ETC.

b)

bind with Acetyl CoA.

c)

make pyruvic acid

d)

make water.

29.
The Kreb's Cycle is also known as:
a)
The Pyruvic Cycle
b)
The Respirational Cycle
c)
The Citric Acid Cycle
d)
The Berk Cycle
30.
The "regenerator" of the Krebs Cycle is:
a)
Oxaloacetate
b)
Acetyl-CoA
c)
Citrate
d)
α-Ketoglutarate
31.
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
32.
NAD and FAD are _________ in the Krebs cycle.
a)
oxidized
b)
reduced
c)
carboxylated
d)
phosphorylated
33.
Which statement best describes the link reaction?
a)
Pyruvate is carboxylated; acetyl co-A is formed, reducing NAD+
b)
Pyruvate is decarboxylated; acetyl co-A is formed, oxidizing NADH
c)
Pyruvate reacts with co-A, oxidizing NADH
d)
Pyruvate is decarboxylated; acetyl co-A is formed, reducing NAD+
34.

Hydrogen ions are pumped from the __________ to the ___________.

a)

matrix; intermembrane space

b)

intermembrane space; matrix

c)

matrix; cytoplasm

d)

intermembrane; cytoplasm

35.

The final electron acceptor in electron transport chain is

a)

NAD+

b)

FAD

c)

Oxygen

d)

Water

36.

What are the final products of oxidative phosphorylation?

a)

NADH

b)

ATP

c)

CO2

d)

H2O

37.
Hydrogen ions moving from the intermembrane space into the mitochondrial matrix is called
a)
chemiosmosis
b)
phosphorylation
c)
oxidation
d)
reduction
38.

The ETC generates water as an end product. To make this water, where do the hydrogen atoms come from?

a)

glucose

b)

pyruvate

c)

NADH and FADH2

d)

oxygen

39.
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
40.

Glucose + Oxygen --> CO2 + H2O + 36 ATP

a)

aerobic

b)

anaerobic

c)

both

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