AP Biology - Free Energy & Enzymes

Net release of energy

• endergonic

• exergonic

Tags

NGSS.HS-PS1-4

Net intake of energy

• endergonic

• exergonic

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

To do work, living systems will pair an endergonic reaction with a(n)________________

• exergonic reaction

• oxidative reaction

• ATP synthesis

• reduction reaction

Tags

NGSS.HS-LS1-7

Living organisms show (increased/decreased) entropy, which is offset by reactions such as digestion that (increase/decrease) entropy of the universe

• decreased, increase

• increased, decrease

• increased, increase

• decreased, decrease

What number represents the activation energy?

• 1

• 2

• 3

Tags

NGSS.HS-PS1-4

What number represents the change in free energy of the reactions?

• 1

• 2

• 3

Tags

NGSS.HS-PS1-4

This reaction is

• endergonic

• exergonic

Tags

NGSS.HS-PS1-4

Endergonic reactions are _____________; exergonic reactions are ____________

• non-spontaneous; spontaneous

• spontaneous; non-spontaneous

• spontaneous; spontaneous

• non-spontaneous; non-spontaneous

Tags

NGSS.HS-PS1-4

Zinc, an essential trace element for most organisms, is present in the active site of the enzyme carboxypeptidase. The zinc most likely functions as a(n):

• competitive inhibitor of the enzyme

• noncompetitve inhibitor of the enzyme

• allosteric activator for the enzyme

• cofactor necessary for enzyme activity

A --> B + C

• Anabolic

• Catabolic

Tags

NGSS.HS-LS1-6