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Biology

A Level

Where do the 4 stages involved in Respiration?

There are 3 main stages of aerobic respiration: 1. Glycolysis that takes place in the cytoplasm 2. Link reaction takes place in mitochonrial matrix 3. The citric ...

Answered by Megan N. • Biology tutor

6316 Views

Describe how the sequence of bases in a DNA molecule would be used to form the primary structure of a protein.
The sequences of bases in a DNA molecule will determine the amino acid sequence in the protein that it encodes for. The bases are arranged in triplets where one triplet will encode for one amino acid in a...
MM
Answered by Madeleine M. • Biology tutor
21307 Views

Describe the synaptic transmission of a nerve impulse at the neuromuscular junction
As an action potential arrives at the presynaptic terminal, a depolarisation of the motor neuron membrane occurs which initiates the opening of voltage-gated Ca²⁺ion channels - releasing Ca
AB
Answered by Adam B. • Biology tutor
7981 Views
Explain synaptic transmission at a cholinergic synapse.
A synapse is a gap between neurons that allows communication between different neurons using chemical messengers or neurotransmitters. Let's start simple and describe the...
MM
Answered by Maaz M. • Biology tutor
8861 Views
Describe the changes that take place to maintain glucose concentration in exercise.
During exercise, blood glucose concentration falls due to the increased energy demand and glucose uptake of skeletal muscles. This fall in glucose concentration is detected by the alpha and beta cells in ...
HB
Answered by Henry B. • Biology tutor
3269 Views
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Top answers

Where do the 4 stages involved in Respiration?

Describe how the sequence of bases in a DNA molecule would be used to form the primary structure of a protein.

Describe the synaptic transmission of a nerve impulse at the neuromuscular junction

Explain synaptic transmission at a cholinergic synapse.

Describe the changes that take place to maintain glucose concentration in exercise.

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