Chapter 8

Question 1

There are _ different types of metabolism, they are __ and they both require __

Answer 1

2

1)Anabolism
2)Catabolism

enzymes

Question 2

Anabolic reactions __(3)

Answer 2

build-up
Endergonic
Condensation reaction (water released)

Question 3

Catabolic reactions _(2)

Answer 3

breakdown
Exergonic (releases energy)(hydrolysis)

Question 4

ATP is the __

Answer 4

energy currency of the cell

Question 5

ATP is broken down through ___, and created ___ and ___

Answer 5

hydrolysis

ADP
Pi (phosphate)

Question 6

Catalase breaks down __

Answer 6

hydrogen peroxide

Question 7

Some characteristics of enzymes are __(6)

Answer 7

1)biological catalysts (speeds up reaction, but not used
2)act on specific substrate
3)proteins
4)-ase suffix
5)lower activation energy
6)speeds up reaction rate

Question 8

The active site is where the ____ binds

Answer 8

substrate

Question 9

Simple enzymes are ___ only

Answer 9

proteins

Question 10

Holoenzymes consists of ___ and ___

Answer 10

apoenzyme

cofactor (chemical and atomns needed by enzyme….like metal ions (Cu,Fe,MG,Zn)…..like coenzymes (organic molecules, vitamins)

Question 11

There are ___ factors that influence enzyme activity, they are ___

Answer 11

4

1)temperature
2)PH
3)substrate Conc.
4)inhibitors

Question 12

There are ___ types of inhibitors, which are __, with the latter having a subtype called ____.

Answer 12

competitive (bind to active site….this is reversible or irreversible

noncompetitive (binds not on active site…this is reversible or irreversible)

Allosteric (bind to allosteric site… reversible only)

Question 13

When proteins unfold this is called ___

Answer 13

denaturization

Question 14

___ is an enzyme in the stomach

Answer 14

pepsin

Question 15

holo- means ___

Answer 15

complete

Question 16

apo- means

Answer 16

incomplete

Question 17

Feedback Inhibition is also known as ____. An example is ___

Answer 17

negative feedback

Insulin being released into the body

Question 18

Answer 18

A

Question 19

Answer 19

A

Question 20

Answer 20

D