Biology Paper 3

Question 1

blood enters the glomerulus from the (1) artery through the afferent arteriole, the blood flows through the knot of capillaries and leaves through the efferent arteriole which has narrower (2) than the afferent arteriole. this creates a high (3) pressure which forces small molecule including glucose, water and ions through the gaps in the walls of the capillary endothelium into the lumen of the (4) capsule. this is the process called (5)

Answer 1

1. renal
2. lumen
3. hydrostatic
4. Bowman’s
5. ultrafiltration

Question 2

Genome

Answer 2

complete set of genes in a cell/organism

Question 3

Proteome

Answer 3

range of proteins that a cell/organism can produce

Question 4

two reasons why bacteria are able to use human DNA to produce human proteins

Answer 4

genetic/DNA code is universal
(The mechanism of) transcription is universal
(The mechanism of) translation is universal