Chapter 7

Question 1

CC anabolic and catabolic (2)

Answer 1

Anabolic
Catabloic

Question 2

Anabolic (+ΔG )

Answer 2

Build complex molecules
Endergonic: Requires energy (ex., Synthesis of protein from amino acids)

Question 3

Catabolic (-ΔG )

Answer 3

Breaking down complex molecules
Exergonic: Releases energy (ex. Cellular respiration)

Question 4

SEQ how ATP drives chemical work

Answer 4

Cells use ATP to carry energy
ATP (adenosine triphosphate)
Ribose (5-c sugar)
Adenine (nitrogenous base)
3 phosphate groups

ATP drives endergonic reactions by phosphorylation

Question 5

SEQ, H/D general enzymatic reactions (3)

Answer 5

Enzyme
Factors affecting enzyme activity
Cofactors help enzymes

Question 6

Enzyme

Answer 6

Enzymes speed up reactions by lowering E barriers

Structure
Active site: Puzzle
Substrate: Final Piece

Question 7

Factors affecting enzyme activity

Answer 7

Temperature and pH (Enzyme optimal T for human is 35-40)
Denaturation
High T: denature enzymes
Low T: slow enzymes

Question 8

Enzyme helps Cofactors

Answer 8

Inorganic: often metals (iron or zinc)
Organic coenzyme: (NAD+, FAD+), vitamins

Question 9

CC Oxidation and Reduction

Answer 9

Oxidation: loss of e-
Reduction: gain of e-

Ex. NADH → NAD+ + H + e- (NADH is oxidized)
Ex. NAD+ + H + e- → NADH (NaD+ is reduced)