Biochemical Reactions (Unit 1)

Question 1

Types of chemical reactions within cells

Answer 1

Condensation
Hydrolysis
Neutralization
Redox

Question 2

Condensation Reactions

Answer 2

Used to build molecules

Removal of H and OH from reactants forms water and a compound

Question 3

Hydrolysis Reactions

Answer 3

Used to digest/break down compounds
Reverse of condensation
Used water to split the compound

Question 4

Neutralization

Answer 4

An acid and base combine to form water and a salt. Excess H and OH join to make water.

Question 5

A change of what pH can affect a cells biological Reactions

Answer 5

0.1

Question 6

Buffer

Answer 6

Maintains optimal pH ranges in the body

A substance that releases H ions into solution if too basic or accepts H ions if too acidic

Question 7

Buffer in Blood

Answer 7

Carbonic acid
H2CO3 can release H if too basic
HCO3 can accept H if too acidic

Question 8

Redox Reactions

Answer 8

One reactant is oxidized and one is reduced.

Transfer of electrons from where electrons are more weakly to more strongly held

Question 9

When are redox Reactions used in biology

Answer 9

To transfer energy in biological processes (ex metabolism) as electrons are energy carriers

Question 10

Oxygen is an

Answer 10

Oxidizing agent

Question 11

If an organic molecule ___________________ or ___________________ it has been oxidized

Answer 11

Gains oxygen

Loses H

Question 12

If an organic molecule ________________ or _________________ it has been reduced

Answer 12

Gains H

Loses O