Cellular Respiration Quiz

Question 1

ATP

Answer 1

Adenosine Triphosphate

Question 2

CR equation

Answer 2

glucose + 6O2 –> —> —> 6CO2 + 6H2O + ATP

Question 3

max ATP CR can produce

Answer 3

38 ATP

Question 4

is glycolysis aerobic or anaerobic?

Answer 4

anaerobic

Question 5

where does glycolysis take place?

Answer 5

cytoplasm

Question 6

1 glucose forms how many pyruvate in glycolysis?

Answer 6

2 pyruvate

Question 7

Where is krebs cycle?

Answer 7

mitochondrial matrix

Question 8

pyruvate is ______ to be converted to acetic acid

Answer 8

oxidized - remove oxygen in form of CO2

Question 9

How does NAD+ become NADH?

Answer 9

when bonds of pyruvic acid are broken, the electrons are donated to it and it becomes NADH

Question 10

acetic acid + _____ = Acetyl-CoA

Answer 10

coenzyme A

Question 11

is krebs cycle aerobic or anaerobic?

Answer 11

aerobic

Question 12

yield of krebs cycle

Answer 12

2 ATP, 6 NADH, 2 FADH2 (coenzyme) and 4C02 released

Question 13

input of krebs cycle

Answer 13

Acetyl CoA

Question 14

what is released during krebs cycle?

Answer 14

4 CO2

Question 15

ETC location

Answer 15

inner mitochondrial membrane

Question 16

is ETC aerobic or anaerobic?

Answer 16

aerobic

Question 17

Does NADH or FADH2 produce more ATP?

Answer 17

NADH- electrons are dropped off earlier in the ETC

Question 18

what pulls electrons down the ETC

Answer 18

oxygen

Question 19

what is the energy released during the “fall” of electrons used for?

Answer 19

pumping hydrogen ions across the membrane (creates gradient)

Question 20

how is ATP formed?

Answer 20

Hydrogen ions moving from high to low concentration thru enzyme ATP synth. create ATP from ADP by adding a phosphate

Question 21

chemiosmosis

Answer 21

protons travel down electrochemical gradient thru ATP synth. —> ATP

Question 22

what is the FINAL electron acceptor in aerobic CR?

Answer 22

oxygen

Question 23

oxygen combines with two hydrogens to make…

Answer 23

6 water (H2O)

Question 24

range of ATP made/glucose

Answer 24

30-38

Question 25

substrate level phosphorylation

Answer 25

direct production of ATP - when phosphate is transferred from substrate ---> ADP ---> ATP - in glycolysis and Krebs

Question 26

ADP

Answer 26

adenosine diphosphate

Question 27

AMP

Answer 27

adenosine monophosphate (looks very sim to a nucleotide)

Question 28

glycolysis reactants and products

Answer 28

reactants: 1 glucose products: 2 ATP, 2 NAD+, 2 pyruvate

Question 29

transition reaction

Answer 29

in between step of glycolysis and Krebs location: cytoplasm reactants: pyruvate and coenzyme A products: acetyl CoA and NADH

Question 30

ETC reactants and products

Answer 30

reactants: NADH, FADH2, 6O2, H+ ions, ATP synthase products: 6H20, 30-38 ATP

Question 31

chemiosmosis in ETC

Answer 31

electrons moving down ETC release energy ---> energy used to pump H+ ions out. THEN with diffusion they travel ACROSS membrane thru ATP synthase - ATP

Question 32

true/false - fermentation does not perform glycolysis

Answer 32

false- both alcoholic and lactic acid fermentation ONLY perform glycolysis

Question 33

alcoholic fermentation's reactants and products

Answer 33

glucose ----> 2 pyruvate + 2 ATP + 2 NADH ---> 2 ethanol (alcohol) and Co2

Question 34

lactic acid fermentation happens when?

Answer 34

when muscle cells are not getting enough oxygen

Question 35

lactic acid fermentation reactants and products

Answer 35

glucose ---> 2 pyruvate + 2 ATP + 2 NADH ---> 2 lactate (lactic acid)

Question 36

what does lactic acid do to your muscles?

Answer 36

makes them sore bc it is a toxin that builds up during anaerobic respiration and needs to be browk down

Question 37

is lactic acid fermentation efficient?

Answer 37

no- it only makes 2 ATP so it will not allow muscles to keep performing for very long after this process has started

Question 38

what is final electron acceptor in lactic acid fermentation?

Answer 38

pyruvate

Question 39

kinetic energy

Answer 39

energy of motion

Question 40

potential energy

Answer 40

energy that is STORED for usage later e.g. H+ gradient

Question 41

conservation of energy states...

Answer 41

energy cannot be created nor destroyed

Question 42

oxidation-reduction-reactions (RedOx reactions)

Answer 42

loss/gain of electrons

Question 43

What part of CR releases THE MOST c02?

Answer 43

krebs cycle