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How does acetylcholine transmit the nervous impulse across a synapse?

An action potential from the axon arrives at the presynaptic neuron, stimulating voltage-gated calcium (Ca2+) ion channels to open. This allows calcium ions to diffuse into the synaptic knob, c...

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Answered by Charlotte C. Biology tutor
4326 Views

What is the structure of DNA?

DNA (DeoxyriboNucleic Acid) is a polymer (a molecule made up of many repeated subunits which form a chain). The subunit of DNA is a DNA nucleotide.

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Answered by Hannah T. Biology tutor
8948 Views

Name and explain the different modes of inheritance.

Modes of Inheritance:

- Autosomal dominant inheritance; In this mode of inheritance you only need the abnormal gene (e.g. a dominant allele) from ...

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Answered by Deborah I. Biology tutor
3274 Views

What does the nervous system consist of and explain the differences between the two.

There are two parts of the nervous system:

Central Nervous system (CNS) and Peripheral Nervous system (PNS).

- The CNS is ...

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Answered by Deborah I. Biology tutor
2509 Views

What happens in the light independent reactions of photosynthesis?

The light-dependent reactions (LDR) take place in the stroma. It is also referred to as the Calvin Cycle.

CO2 and RUBP combine, using the enzyme RUBISCO. This forms an unstable 6C carbon-...

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Answered by Tzeamara G. Biology tutor
13959 Views

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