u3: introduction to cellular respiration

Question 1

aerobic respiration

Answer 1

process tht extracts energy from food in presence of oxygen

Question 2

obligate aerobe

Answer 2

organisms tht cant live w/o oxygen

Question 3

substrate-level phosphorylation

Answer 3

direct transfer of phosphate group from a substrate to ADP to form ATP in enzyme-catalyzed rxn

Question 4

oxidative phosphorylation

Answer 4

ATP is formed through indirect energy transfer from a series of redox reactions

Question 5

anaerobic respiration

Answer 5

uses an inorganic molecule (not oxygen) as the final oxidizing agent to produce energy

Question 6

obligate anaerobe

Answer 6

organisms tht cant survive in the presence of oxygen

Question 7

facultative anaerobe

Answer 7

organisms tht can live with or without oxygen

Question 8

parts of the mitochondria

Answer 8

• outer mitochondrial membrane
• intermembrane space
• inner mitochondrial membrane
• matrix

Question 9

steps of aerobic respiration

Answer 9

1. glycolysis (cytoplasm)
2. pyruvate oxidation (mito matrix)
3. citric acid/kreb’s cycle (mito matrix)
4. electron transport chain (inner mitochondrial membrane)