Biology HL
Paper 2
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Biology HL
Available time 20 Minute(s)
01

Draw a labelled diagram to show the molecular structure of a membrane

Paper 2
:
Available time 20 Minute(s)
01. Question
Level Hard
Maximum Mark 15
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(a) Draw a labelled diagram to show the molecular structure of a membrane

[Marks: 3]

(b) Proteins in the membranes can also play a role as an enzyme. Outline enzyme-substrate specificity.

[Marks: 5]

(c) Membranes of pre-synaptic and post-synaptic neurons play vital part in transmission of nerve impulses. Explain the working of synaptic transmission

[Marks: 7]
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