1.7 Cellular Respiration

Question 1

Substance that carries acetal groups into the citric acid cycle

Answer 1

Coenzyme A

Question 2

Enzymes that remove hydrogen from their substrates; important in the citric acid cycle

Answer 2

Dehydrogenase

Question 3

Group of proteins embedded in membranes of mitochondria and chloroplasts

Answer 3

Electron transport chain

Question 4

Hydrogen carrier important in the citric acid cycle

Answer 4

FAD

Question 5

Progression of pyruvate in the absence of oxygen

Answer 5

Fermentation

Question 6

Sugar that is the main respiratory substrate in cells

Answer 6

Glucose

Question 7

First stage in cellular respiration

Answer 7

Glycolysis

Question 8

Electrons that can yield energy as they pass through an electron transport chain

Answer 8

High-energy electrons

Question 9

Substance in metabolic pathway between the original substrate and the end product

Answer 9

Intermediate

Question 10

Central cavity of a mitochondrion in which the citric acid cycle occurs

Answer 10

Matrix

Question 11

Cell organelle in which the aerobic stages of respiration occurs (plural: mitochondria)

Answer 11

Mitochondrion

Question 12

Hydrogen carrier important in the citric acid cycle

Answer 12

NAD

Question 13

Substance that combines with the acetyl group in the citric acid cycle to form citrate

Answer 13

Oxaloacetate

Question 14

Inorganic phosphate used to phosphorylase ADP

Answer 14

Phosphate (Pi)

Question 15

Enzyme that regulates glycolysis and synchronises it with the citric acid cycle

Answer 15

Phosphofructokinase (PFK)

Question 16

Addition of phosphate to a substance

Answer 16

Phosphorylation

Question 17

The end product of glycolysis

Answer 17

Pyruvate