Ch.4 Part 1

Question 1

What form of energy does all cellular work?

Answer 1

ATP

Question 2

What is the ability to synthesize new molecules or break down large molecules

Answer 2

Chemical work

Question 3

What is the ability to move molecules across membrane or around in cells?

Answer 3

Transport work

Question 4

An example of mechanical work in the cell would be

Answer 4

muscular contraction/ cilia flagella motion

Question 5

The chemicals on the left side of the arrow in a chemical reaction are the?

Answer 5

Reactants.

Question 6

The chemicals on the right side of the arrow in a chemical reaction are the?

Answer 6

products

Question 7

the arrow in a chemical reaction means ?

Answer 7

chemical reaction

Question 8

A + C > D is an example of

Answer 8

combination reaction

Question 9

C > A + B is an example of

Answer 9

decomposition reaction

Question 10

L + MX > M + LX is an example of

Answer 10

single displacement reaction

Question 11

LX + MY > LY + MX Is an example of

Answer 11

double displacement reaction

Question 12

The two basic types of chemicals reactions are based whether or not

Answer 12

energy released or stored

Question 13

What type of reaction store energy in chemical bonds

Answer 13

endergonic

Question 14

what is an example of a chemical process that stores energy ?

Answer 14

photosynthesis

Question 15

what type of reaction relates energy from chemical bonds?

Answer 15

exergonic

Question 16

ATP doing cellular work is an example of

Answer 16

exorgonic

Question 17

What biomolecule makes up all enzymes?

Answer 17

Protein

Question 18

How are most enzymes named

Answer 18

Named for what they do “ase”.

Question 19

What is a molecule that causes a chemical reaction occur but does not change in process

Answer 19

Catalyst

Question 20

What part of an enzymes is the same shape as the substrate ?

Answer 20

active site

Question 21

What do enzymes lower

Answer 21

activation energy

Question 22

Many enzymes need to be activated before they can work properly T/F

Answer 22

T

Question 23

What are two examples of enzymes that need to be activated before they can work?

Answer 23

blood clotting and digestion

Question 24

Enzymes function best at

Answer 24

ideal conditions

Question 25

What is the effect on an enzyme of changing its ideal conditions

Answer 25

its slows or stops enzyme function

Question 26

What are enzymatic modulator?

Answer 26

Modultors include: temperature, pH, and inhibitors.

Question 27

The ideal temperature for all enzymes is about 98.6 degrees T/F

Answer 27

T

Question 28

What is the effect of cooling an enzyme below its idea temperature?

Answer 28

it moves to slow and doesn't cause as many chemical reaction to occur

Question 29

What is the effect of heating an enzyme far above ideal temperature

Answer 29

The active site of the enzyme starts to change shape

Question 30

When an enzyme active stir has been permanently changed the enzyme has been

Answer 30

denatured

Question 31

All enzymes have an ideal pH at which they function best T/F

Answer 31

T

Question 32

What occurs when a molecule that is close enough to the shape of the true substrate fits into the active site blocking it?

Answer 32

competitive inhibition

Question 33

Cyanide is an example of what type of inhibitor?

Answer 33

Competitive inhabitation.

Question 34

What type of inhibitor latches itself to some portion of the enzyme close to the active site?

Answer 34

Non-competitive or allosteric inhibitors.

Question 35

What effect do allosteric inhibitors have on the active site of the enzyme?

Answer 35

in the changing of the active site shape

Question 36

What type of cellular metabolic process is energy releasing

Answer 36

catabolic

Question 37

Which of the following statements is not true for anabolic reactions? Not on test

Answer 37

true : energy requiring synthesis small molecules into large ones convert one molecule into another

Question 38

The presence of an end product that inhibits the process that produced it is called?

Answer 38

Feedback Inhibition / regulation