Chapter 3 : Cell Metabolism

Question 1

Aerobic Cellular Respiration Definition

Answer 1

Takes in sugar ( glucose) and breaks it down into carbon dioxide and water
—Produces energy in the form of ATP

Requires oxygen and produces carbon dioxide

Question 2

Anaerobic Fermentation Definition

Answer 2

Does not require oxygen

Question 3

ATP Synthase Definition

Answer 3

Is a transport protein and an enzyme

Question 4

Metabolism Definition

Answer 4

Consists of all of the chemical
reactions that take place in a cell

Question 5

Glycolysis Definition/Meaning

Answer 5

Occurs in the cytosol
Splits one glucose into two pyruvate molecules
—Creates 2 ATP, 2 NADH molecules, 2 Pyruvate

Does not require oxygen

Question 6

Transition Reaction Definition/Meaning—

Answer 6

Occurs in the mitochondria

—Creates 2 CO2,2NADH,2 Acetyl

Question 7

Citric Acid Cycle (Krebs Cycle) Definition/Meaning

Answer 7

Occurs in the mitochondria

Question 8

Electron Transport Chain Definition/Meaning

Answer 8

Electrons of FADH2 and NADH are transferred from one protein to another until they reach oxygen

— Results in 32 ATP
(Requires oxygen)

Question 9

Glycolysis

Answer 9

Starts with glucose

Ends with 2 ATP, 2 NADH , 2 Pyruvate

Question 10

Transition Reaction

Answer 10

Starts with 2 pyruvate , 2 Coenzyme A

Ends with 2 CO2 , 2 NADH , 2 Acetyl CoA

Question 11

Citric Acid Cycle

Answer 11

Starts with 2 Acetyl CoA

Ends with 4 CO2 , 2 ATP , 6 NADH and 2 FADH2

Question 12

Which has a higher pH?
A. Extracellular space
(outside the cell)
B. Cytosol
C. Intramembrane space
of the mitochondrion
D. Lumen of the
mitochondrion

Question 13

When the ETC transports H+ this is called:
A. Simple diffusion
B. Facilitated diffusion
C. Active transport

Question 14

What gives the energy to the ETC to do the active
transport
A. ATP
B. GTP
C. e-
D. NADH
E. O2

Question 15

The ETC transports H+ from where to where?
A. Intramembrane space
to cytosol
B. Cytosol to outside the
cell
C. Intramembrane space
to the lumen
D. Lumen to the
Intramembrane space

Question 16

The ATPsynthase transports H+ from where to
where?
A. Intramembrane space
to cytosol
B. Cytosol to outside the
cell
C. Intramembrane space
to the lumen
D. Lumen to the
Intramembrane space

Question 17

When the ATP synthase transports H+ this is called:
A. Simple diffusion
B. Facilitated diffusion
C. Active transport

Question 18

What accepts electrons from the ETC ?
A. ATP
B. GTP
C. CO2
D. NADH
E. O2

Question 19

What is the starting molecule of glycolysis?
A. Acetyl CoA
B. Protein
C. Glucose
D. Pyruvate (pyruvic acid)

Question 20

Which stage produces CO2?
A. Glycolysis
B. Electron Transport
Chain
C. Transition
D. Citric acid Cycle
E. Both 3 and 4

Question 21

Which stage uses O2?
A. Glycolysis
B. Krebs Cycle
C. Electron Transport
Chain

Question 22

Which stage produces the most NADHs?
A. Glycolysis
B. Krebs Cycle
C. Electron Transport
Chain

Question 23

Which stage produces the most ATP?
A. Glycolysis
B. Krebs Cycle
C. Electron Transport
Chain/ATPsynthase