respiration

Question 1

what is meant by the term anaerobic

Answer 1

oxygen is absent

Question 2

what other substance is produced in animals cells as a result of anaerobic respiration

Answer 2

lactic acid

Question 3

what is the name given to stage one

Answer 3

glycolysis

Question 4

stage one ended with the formation of a three carbon compound. name this compound

Answer 4

pyruvic acid

Question 5

describe in detail what happens top these electrons when they are removed

Answer 5

they pass to NAD+ to make NADH and then they pass to electron transport chain. they lose energy(ATP) then Is passed to oxygen and to protons(H+) to make water

Question 6

what is the word equation

Answer 6

ADP+P+Energy –> ATP+H20

Question 7

where in the cell does stage one occur

Answer 7

cytosol

Question 8

name the cell organelle in which stage 2 occurs

Answer 8

mitochondria

Question 9

explain why muscle cells contain large numbers of the cell organelle (mitochondria)

Answer 9

the release of energy, muscles need a lot of energy

Question 10

what does ATP stand for

Answer 10

Adenosine Triphosphate

Question 11

NAD is another energy carrier involved in respiration, what is its function

Answer 11

transports protons and electrons

Question 12

name the by product of anaerobic respiration in a muscle cell

Answer 12

lactic acid

Question 13

name the series of chemical reactions, involving acetyl.co enzyme A, which does occur in the mitochondrion

Answer 13

Krebs cycle s

Question 14

state the number of carbon atoms in a molecule of acetyl co. enzyme A

Answer 14

2

Question 15

write a balanced chemical equation for aerobic respiration

Answer 15

C6 H12 O6 + 6O2 –>6CO2 + H2O

Question 16

identify the molecules;es which is released during stage one

Answer 16

ATP

Question 17

describe how ATP is made

Answer 17

ADP + P

Question 18

compare the amount of energy released when oxygen is used and not used

Answer 18

O2 is used - high energy
o2 is not used - low energy

Question 19

name the two carbon contains molecules produced when the three carbon molecule at pyruvic acid is broken down

Answer 19

acetyl co. enzyme A

Question 20

outline the events that take place in the electron transport chain

Answer 20

high energy electrons pass along carriers, electrons lose energy which is used to form ATP

Question 21

name the storage polysaccharide in humans from which glucose is produced

Answer 21

glycogen

Question 22

give one major storage location of this polysaccharide in the body

Answer 22

liver

Question 23

what happens to pyruvate molecules;es that prepares them for the Krebs cycle

Answer 23

lose cO2

Question 24

name the there products of the Krebs cycle

Answer 24

ATP, CO2, NADH

Question 25

what is the final electron acceptor in aerobic respiration

Answer 25

oxygen

Question 26

what does NAD stand for

Answer 26

nicotinamide adenine dinucleotide

Question 27

name two types of particle that are transferred by NAD

Answer 27

electrons
protons