metabolism energy and enzymes

Question 1

law of conservation of energy

Answer 1

Energy can not be created or
destroyed, but it can be changed from one form to another; energy cannot be changed without a useable loss of energy

Question 2

entropy

Answer 2

used to describe the relative amount of
disorganization

Question 3

metabolism

Answer 3

the sum of all chemical reactions that occur in the cell

Question 4

free energy

Answer 4

is the energy that is free to do work after the chemical reaction

Question 5

exergonic reactions

Answer 5

are spontaneous and reactions that release energy

Question 6

endergonic reactions

Answer 6

require an input of energy for a reaction to occur

Question 7

chemical work

Answer 7

ATP supplies energy needed to synthesize
macromolecules (anabolism) that makes up the cell, and therefore
the organism

Question 8

transport work

Answer 8

ATP supplies the energy needed to pump
substances across the plasma membrane

Question 9

mechanic work

Answer 9

ATP supplies energy needed to permit muscles to
contract

Question 10

enzyme

Answer 10

molecule that speeds up a chemical reaction without itself being affected by the reaction

Question 11

active site

Answer 11

The site where the substrate and
enzyme bind is called the

Question 12

induced fit model

Answer 12

The active site slightly changes shape to
accommodate the substrate and after making products resumes its regular shape

Question 13

what factors affect enzyme rate?

Answer 13

concentration, pH, temp, enzyme cofactors, coenzymes