SQA Past Papers

Question 1

Give one behavioural adaptation of animals with high metabolic rates to allow survival in adverse conditions.
(Unit 2 - Metabolic and adverse conditions 2.5) (dormancy)

Answer 1

Dormancy (aestivation, hibernation, daily torpor)

Question 2

Name the enzyme, found in membranes, responsible for phosphorylating ADP to ATP.
(Unit 2- Metabolism and adverse conditions 2.

Answer 2

ATP synthase

Question 3

Why are isolation barriers important for speciation? (Unit 1- Evolution 1.7) (speciation)

Answer 3

To prevent gene-flow between sub-populations.

Question 4

Describe the circulatory system of amphibians and reptiles. (Unit 2- metabolic rate 2.3) (circulatory systems)

Answer 4

Incomplete double circulatory system, two ventricles, one atrium.

Question 5

Give two examples of genomes that have been sequenced (Unit 1- Genomics sequencing 1.8) (Genomic sequencing)

Answer 5

Pest species, disease causing organisms and model organisms for research.