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(a) Name the organs which produce each of the following hormones. Choose from this list. ovaries brain liver stomach pancreas testes kidney (i) testosterone. (1 mark, 1 li

(a)     (i)      testes;                                                                                                                                       
         (ii)     pancreas;            ...

NM
Answered by Niko M. Biology tutor
2417 Views

Outline the process of DNA replication

During DNA replication the double-stranded DNA helix is separated to single strands by the enzyme DNA helicase. This exposes the nucleic acid bases that encode the genetic sequence. Replication is then in...

LW
Answered by Lorna W. Biology tutor
3296 Views

How do we pick up maximum marks in each question?

The first thing you should be doing when you read a question is to make sure that you understand exactly what it is asking from you for which subject knowledge is extremely important. Underlining or highl...

AH
Answered by Amaarah H. Biology tutor
5677 Views

Briefly describe the main differences between fast and slow twitch muscles and how does this relate to their specific functions.


First of all,  slow-twitch (type I) muscle fibres have a large number of mitochondria allowing them to carry out aerobic respiration at a high rate by providing a site for the Kreb's cycle (taking ...

SG
Answered by Sebastian G. Biology tutor
4534 Views

Describe the process by which an action potential is propagated across a cholinergic synapse

A cholinergic synapse is one which uses acetycholine (ACh) as it's neurotransmitter. When the action potential reaches the synaptic knob at the presynaptic cell it leads to voltage gated Ca2+ch...

DM
Answered by David M. Biology tutor
3018 Views

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