Chapter 8

Question 1

Metabolism

Answer 1

sum of total of all biochem occurring in a cell such as metabolic pathways + enzymes

Question 2

Ezymes in groups =

Answer 2

metabolic pathways

Question 3

Catabolic Reaction

Answer 3

Breaks down into smaller components

Question 4

Example of catabolic reaction:

Answer 4

c6h1206 + 6o2 —> 6Co2 + 6H2O + Energy + ATP

Question 5

Energy from catabolic reaction amount

Answer 5

686Kcal

Question 6

Anabolic Reaction

Answer 6

Builds/ synthisizes such as photosynthesis

Question 7

3 Kinds of Energy

Answer 7

Mechanical, Chemical, Electrical

Question 8

Thermodynamics 1st Law

Answer 8

Energy cannont be created nor destroyed, only changes FORMS

Question 9

Thermodynamics 2nd Law _______

Answer 9

Entropy ; universe is moving towards a state of disorder

Question 10

Thermodynamics

Answer 10

Study of heat transfer

Question 11

Free Energy/ Delta G (2)

Answer 11

Endergonic vs Exergonic

Question 12

Endergonic Reactions

Answer 12

require energy

Question 13

Exergonic Reactions

Answer 13

release free energy

Question 14

Living things are energy

Answer 14

transformers

Question 15

Exergonic vs Endergonic examples

Answer 15

Cellular resp VS photosynthesis

Question 16

ATP

Answer 16

Adenosine Triphosphate

Question 17

ATP is

Answer 17

energy currency

Question 18

____ types of ATP Work

Answer 18

3

Question 19

1st Step of ATP work explained

Answer 19

ATP in presence of WATER is hydrolyzed.

3 phosphates, highly charged to sugar ( ribose, extra OXY on #2 carbon) att to base ( adenine).

ATP + H2O —> ADP (High energy phosphate) + Pi + 7.3kcals

Question 20

2nd Step of ATP Work explained

Answer 20

PHOSPHORLATION ; high energy phosphate attaches to TARGET.

7.3 KCALS is NOW uses for work

7.2 kcals released

Question 21

3rd Step of ATP Work explained

Answer 21

ATP Cycle ( restores/regenerates ATP)

ADP + Pi –> ATP + H2O

Question 22

ATP is a _____ reaction

Answer 22

Endergonic reaction ; requring energy from cellular resp/fermentation

Question 23

ATP _____ be stored

Answer 23

CAN’T

Question 24

Enzymes end with

Answer 24

ASE

Question 25

Enzymes def

Answer 25

bio catalyst proteins that speed up rate of an reaction

Question 26

The speeding up of a reaction causes a

Answer 26

lower activation energy needed ( barrier)

Question 27

How do enzymes lower act. energy

Answer 27

breaking covalent bonds

Question 28

enzymes offer ___

Answer 28

more control

Question 29

Components of enzyme activity include ( 5)

Answer 29

Active sites; substrtate, induced fit, saturation and enzyme substrate complex

Question 30

___ most important environment factors determining enzyme activity

Answer 30

2; temp and PH

Question 31

examples of temp and ph enzyme activity

Answer 31

fever and yellowstone

Question 32

Enzyme cofactors vs adjuncts

Answer 32

adjuntcs are inorganic ( minerals), cofactors are organic ( vitamins)

Question 33

2 Enzyme inhibitors

Answer 33

Competiive vs non-competitive

Question 34

Competitive Inhibitor examples

Answer 34

DDT ; penecilin

Question 35

Non-comp inhibitator example

Answer 35

nerve gas, cyanide, mercury

Question 36

Non competitive does what to an active site?

Answer 36

binds AWAY from active site, changes shape of active site

Question 37

DDT made by

Answer 37

Mueller

Question 38

Rachel Carson

Answer 38

hurting wildlife ; “ SILENT SPRINGS”