Ch5 bio quiz- enzymes :0

Question 1

Energy

Answer 1

the capacity to cause change or do work

Question 2

kinetic

Answer 2

-the energy of motion
-heat/ thermal
-associated with the movement of atoms and molecules

Question 3

potential

Answer 3

energy that matter posesses as a result of its location or structure
- in glucose, it’s in the bonds

Question 4

thermodynamics

Answer 4

the study of energy transformations that occur in a collection of matter

Question 5

first law

Answer 5

law of energy conservation

Question 6

entropy

Answer 6

measure of disorder
some energy is always made into heat
the more random things are, the greater the entropy

Question 7

2nd law

Answer 7

all energy conversions increase the entropy of the universe

Question 8

exergonic reaction

Answer 8

reaction that reduces energy
-related to exothermic
-energy goes from system to surroundings

Question 9

endergonic reaction

Answer 9

reaction that requires energy
-related to endothermic
- energy goes from surroundings to system

Question 10

metabolism

Answer 10

general term that is for total chemical reactions in a given organism

Question 11

metabolic pathway

Answer 11

series of chemical reactions that either build or break down molecules

Question 12

ATP

Answer 12

adenosene triphosphate
powers nearly all levels of cellular work
- phosphate bonds are weak, breaking them gives off energy

Question 13

phosphorylation

Answer 13

the adding of a phosphate group to a molecule

Question 14

cellular work

Answer 14

1) chemical work- making bonds
2) material work- movement
3) transportation- active transport

Question 15

enzymes lower

Answer 15

activation energy

Question 16

activation energy

Answer 16

energy that is needed to be absorbed to weaken bonds so they can break and react

Question 17

all enzymes are specific for a certain

Answer 17

sub- strate

Question 18

substitutes

Answer 18

bind to an enzyme via an active site

Question 19

co factor

Answer 19

non protein assistant for enzymes

Question 20

competitive inhibition

Answer 20

reduce enzymes production by blocking access to molecules to active site

Question 21

non- competitive inhibitor

Answer 21

binds allsoteric, making a change to active site’s configuration.

Question 22

feedback mechanism

Answer 22

• negative- product acts as an inhibition
• positive- product acts as a catalyst