Ch 7 cell respiration

Question 0

Heterotrophs

Answer 0

Live on organic compounds produced by other organisms

Question 1

Autotrophs

Answer 1

Able to produce own organic molecules through photosynthesis

Question 2

Dehydrogenation

Answer 2

Lost electrons accompanied by protons

Question 3

NAD

Answer 3

An electron carrier

Accepts 2 electrons and 1 proton to become NADH. This is reversible

Question 4

Aerobic respiration

Answer 4

Final receptor is oxygen

Question 5

Anaerobic respiration

Answer 5

Final electron acceptor is an inorganic molecule (not oxygen)

Question 6

Fermentation

Answer 6

Final electron acceptor is carbon

Question 7

Steps of oxidation glucose

Answer 7

Glycolysis
Pyruvate oxidation
Krebs cycle
Electron transport

Question 8

Glycolysis

Answer 8

Breaking down of glucose. Occurs in cytoplasm
Converts 1 glucose to 2 pyruvate

End result 2 atp and 2 NADH

Question 9

Substrate level phosphorylation

Answer 9

Transfer phosphate group directly to adp

During glycosis

Question 10

Oxidative phosphorylation

Answer 10

Atp synthase uses energy from a proton gradient

Question 11

2 steps pyruvate can take

Answer 11

Aerobic - oxidized to acetyl coa which enters kreps cycle.

Anaerobic- reduced back to nad and becomes lactic acid.

Question 12

Krebs cycle

Answer 12

Oxidizes the acetyl group from pyruvate. Occurs in mitochondria. Yields 2 fadh2 6nadh and 2atp and co2

Question 13

Final atp

Answer 13

38 atp for bacteria

36 atp for eukaryotes