Unit 3 - Class 2

Question 1

Cellular Respiration occurs in three main stages

Answer 1

Glycosis (cytosol) , Citric Acid Cycle (Matrix) , Oxidative Phosphorylation (cristae)

Question 2

Stage 1

Answer 2

Glycolysis (splitting of sugar)

Question 3

Stage 1 step one

Answer 3

starts with single molecule of Glucose
(6 carbons)

Question 4

Stage 1 step two

Answer 4

Oxidizes into two 3-carbon molecules called pyruvate

Question 5

Stage 1 step three

Answer 5

NAD+ to NADH (e- carrier)

Question 6

Stage 1 step four

Answer 6

Generates 2 ATP molecules

Question 7

Substrate level Phosphoryalation

Answer 7

energy release during Glycosis used makeing 2 ATP molecules

Question 8

Glycosis how many main phases?

Answer 8

2 main phases

Question 9

Glycosis - investment phase

Answer 9

2 ATP molecules used energizing glucose molecule

Question 10

Glycosis - harvest phase

Answer 10

Forms 2 NADH, 4 ATP molecules, 2 pyruvates

Question 11

Glycosis after main phases

Answer 11

Net Gain 2 ATP for 1 glucose

Question 12

Where Cellular Respiration Stages 2 + 3?

Answer 12

take place in Mitochondrion

Question 13

Stage 2

Answer 13

Pyruvate Oxidation, citric acid cycle

Question 14

Pyruvate oxidation +Citric Acid cycle (S-1) no order

Answer 14

Pyruvate is oxidized to Acytel (2 carbon compound)

Question 15

Pyruvate Oxidation + citiric Acid Cycle (S-2) no order

Answer 15

Acytel combines with coenzyeme A to make Acytel CoA

Question 16

Pyruvate Oxidation + Citric Acid Cycle (S-3) no order

Answer 16

uktimatly - generates NADH and CO2

Question 17

Pyruvate Oxidation + Citric Acid Cycle (1)

Answer 17

Acetyl enters the citric acid cycle / Krebs cycle

Question 18

P O + C A C (2)

Answer 18

Krebs cycle - completes oxidation (loss of electrons) of organic molecules

Question 19

Stage 2 - P O and C A C (3)

generates

Answer 19

Generates 6 NADH, 2 ATP 2 FADH, 4 CO2 per Glucose

Question 20

Stage 3 - Oxidative Phosphorylation (ETC and Chesmiosmosis) (1) ETC

Answer 20

ETC - series of redox reaction (reactions transporting electrons)

Question 21

Stage 3 (2) Transport of Electrons

Answer 21

through ETC - provides energy establishing H+ higher concentration in inner membrane space

Question 22

Stage 3 (3) Chesmiosmosis

Answer 22

Chesmiosmosis = H+ gradient potential energy - drives ATP synthesis

Question 23

Stage 3 - NADH and FADH

Answer 23

shuttle their high-energy electrons to the ETC

Question 24

ETC

Answer 24

Transfroms energy of e- to the energy of H+ gradient (driving ATP synthesis in cells)

Question 25

Where Stage 1

Answer 25

occurs in the cytosol of cytoplasm - only step outside the mitochondria