1.6 Metabolic Pathways

Question 1

Input of energy required to start a chemical reaction

Answer 1

Activation energy

Question 2

Region on an enzyme molecule where the substrate binds

Answer 2

Active site

Question 3

Metabolic pathways that consume energy in synthesis of complex molecules

Answer 3

Anabolic

Question 4

Metabolic activity that releases energy in breakdown reactions

Answer 4

Catabolic

Question 5

Slowing of reaction rate due to the presence of a substrate resembling the substrate

Answer 5

Competitive inhibition

Question 6

Enzyme inhibition caused by the presence of an end product of a metabolic pathway

Answer 6

Feedback inhibition

Question 7

Change to an enzymes active site brought about by its substrate

Answer 7

Induced fit

Question 8

Enzyme-controlled sequence of chemical reactions in a cell

Answer 8

Metabolic pathway

Question 9

Enzyme inhibition by a substance that permanently alters the active site of the enzyme

Answer 9

Non-competitive inhibition

Question 10

Substrate resulting from an enzyme-catalysed reaction

Answer 10

Product

Question 11

Molecule that brings about changes in a cell’s metabolism

Answer 11

Signal molecule

Question 12

Substance on which an enzyme works

Answer 12

Substrate