cameroon gce advances level June 2015 biology 3
cameroon gce advances level June 2015 biology 3
Define the following terms:
(i) Taxonomy.
(ii) Binomial nomenclature.
Explain why viruses are not considered as cellular organisms.
(c) ; Describethe* Ufa cycl$.’d.fa named-rfttovinq..
What is translocation?
Using suitable examples, explain the mechanism of each of the following biological processes.
,(i) r Diffusion
‘ (ii) ‘Active transport.’
•(iii)- Pinocytosis
(iv) Phagocytosis.
o (a)
(b)
Ii
\
(4, 4 . 4, 4, 4 marks)
t l otal = 20 marks)
3. (a) Explain why metabolic reactions occur in small-steps. v
(b) Describe and illustrate how the following factors affect the rate of enzyme reaction.
Substrate concentration.
Temperature and temperature coefficient.
(iii) Hydrogen ion concentration.
(c) Differentiate between competitive and non-competitive inhibitors
