Week 7 (cell resp)

Question 1

sites of cellular respiration

Answer 1

mitochondria

Question 2

where does glycolysis happen

Answer 2

cytoplasm

Question 3

where does the citric cycle occur ?

Answer 3

mitochondrial matrix

Question 4

catabolism

Answer 4

a cell obtains energy and simple chemical nutrients

Question 5

is cellular respiration anabolic or catabolic ?

Answer 5

catabolic
-breakdown of high energy molecules to low energy products

Question 6

Aerobic respiration

Answer 6

complete oxidation of organic molecules in the presence of oxygen

Question 7

fermentation

Answer 7

partial degradation of sugars in the absence of oxygen

Question 8

Oxidation

Answer 8

loss of electrons

Question 9

Reduction

Answer 9

gain of electrons

Question 10

general structure of a sugar

Answer 10

1 carbon
1 oxygen
2x as many hydrogens

Question 11

oxidizing agents

Answer 11

NAD+ and FADH

Question 12

Reducing agents (that gain an electron) and where does this energy go?

Answer 12

NADH and FADH2

energy is couple to ATP synthesis

Question 13

substrate level phosphorylation

Answer 13

ADP->ATP in glycolysis and citric acid cycle
doesn’t produce as much as oxidative phosphorylation

Question 14

oxidative phosphorylation

Answer 14

majority of ATP is made here in the ETC

Question 15

chemiosmosis

Answer 15

movement of ions across the membrane down their electrochemical gradient

Question 16

proton motive force

Answer 16

electrochemical gradient

Question 17

why does fermentation occur

Answer 17

to recycle NAD+ by donating electrons from NADH