Higher Biology

Question 1

Answer 1

1a.) A T A G C A

bi.) any value from 92 - 98

ii.) primers - allows nucleotides to be added OR allows DNA to be amplified

DNA Polymerase - joins complementary nucleotides OR amplifies DNA

C.) solving crimes, identifying people, diagnose genetic disorders

Question 2

Answer 2

Concentration/volume of hydrogen peroxide

Volume of copper sulphate

Concentration of yeast beads

Size of surface area

Temperature of solution beads/flask

PH of contents of the flask

Question 3

Answer 3

3aii.) the immobilised yeast beads can be used more than once. OR the immobilised yeast beads can be removed easily

iii.) to allow the beads to remove the copper sulphate OR to allow the copper sulphate to diffuse into the beads

B.) axes have correct scale and labels. Points correctly plotted and line drawn.

C.) as the copper sulphate concentration increases the catalase activity decreases

Question 4

Answer 4

4ai.) Y and Z

ii.) pyruvate

iii.) citrate

Question 5

Answer 5

4b.) inner membrane in mitochondria from muscle cells has a greater surface.
For ATP synthase/hydrogen ions to be pumped across

C.) they have many mitochondria
OR
They have a large blood supply
OR
They have a high concentration of myoglobin

Question 6

Answer 6

5ai.) FSH stimulates growth of the follicle in the ovary. The developing follicle releases oestrogen.

ii.) oestrogen stimulates thickening of the endometrium OR oestrogen prepares the endometrium for implantation

It stimulates ovulation