Ch. 7

Question 1

able to produce their own organic molecules through photosynthesis

Answer 1

autotrophs

Question 2

loss of electrons is accompanied by hydrogen

Answer 2

dehydrogenations

Question 3

loss of electrons

Answer 3

oxidations

Question 4

live on organic compounds produced by other organisms

Answer 4

heterotrophs

Question 5

a series of reactions that are oxidations and dehydrogenations

Answer 5

cellular respiration

Question 6

electrons carry energy from one molecule to another

Answer 6

redox reactions

Question 7

final electron acceptor is O2

Answer 7

aerobic respiration

Question 8

final electron acceptor is an inorganic molecule (not O2)

Answer 8

anaerobic respiration

Question 9

final acceptor is an organic molecule

Answer 9

fermenation

Question 10

complete oxidation of glucose stages

Answer 10

glycolysis
pyruvate oxidation
krebs cycle
ETC & chemiosmosis

Question 11

____ occurs in cytoplasm

Answer 11

glycolysis

Question 12

glcolysis three stages

Answer 12

energy investment/priming
cleavage reactions
energy production

Question 13

products of glycolysis

Answer 13

2 pyruvates
net total of 2 ATP
2 NADH
2 water molcules

Question 14

in full respiration pyruvate is

Answer 14

oxidized to acetyl-CoA entering krebs cycle

Question 15

without oxygen or other terminal electron carrier pyruvate is

Answer 15

reduced to oxidized NADH back to NAD+

Question 16

__________ occurs in mitochondria in eukaryotes and plasma membrane in prokaryotes

Answer 16

pyruvate oxidation

Question 17

products of pyruvate oxidation

Answer 17

1 CO2
1 NADH
1 acetyl-CoA

Question 18

pyruvate oxidation happens __ _____ per glucose

Answer 18

two times

Question 19

krebs cycle oxidizes

Answer 19

acetyl group from pyruvat

Question 20

krebs cycle occurs in

Answer 20

matrix of mitochondria

Question 21

products of krebs cycle

Answer 21

2 CO2
3 NADH
1 FADH2
1 ATP

Question 22

krebs cycle happens ___ times per glucose

Answer 22

two

Question 23

After glycolysis, pyruvate oxidation and the Krebs cycle, glucose has been oxidized to

Answer 23

6 CO2
4 ATP
10 NADH
2 FADH

Question 24

ETC is a

Answer 24

series of membrane-bound cariers

Question 25

electron from _____ and ____ are....

Answer 25

NADH, FADH, transferred to complexes of ETC

Question 26

energy used to

Answer 26

pump protons across membrane

Question 27

ATP synthase

Answer 27

is a membrane-bound enzyme that uses the energy of proton gradient to synthesize ATP from ADP + Pi

Question 28

theoretical energy yields

Answer 28

38 ATP per glucose for bacteria 36 ATP per glucose for eukaryote

Question 29

actual energy yield

Answer 29

30 ATP per glucose for eukaryotes

Question 30

regulation of aerobic respiration is by

Answer 30

feedback inhibition