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Describe the lytic pathway of a virus.

The lytic cycle is one of the two cycles of viral reproduction in host cells. Viruses cannot replicate outside a host, therefore virus binds to host cells. Adsorption and penetration occurs (process through ...
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Answered by Nisha G. • Biology tutor
11312 Views

Describe how a vaccine results in the production of antibodies against a disease causing organism.

The vaccine contains parts of the pathogen that are recognised by the immune system, these are called antigens. The antigen is recognised by innate immune cells such as macrophages that will engulf the patho...
AC
Answered by Anna C. • Biology tutor
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Explain why dead plants decay faster in soil which earthworms inhabit compared to soil which lacks any earthworms.

Dead plants are able to decay faster in soil where earthworms live as earthworms disrupt the compact nature of the soil allowing more oxygen to reach the soil. This means there is more aerobic respiration of...
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Answered by Aliah M. • Biology tutor
10725 Views

Temperature affects cell membrane permeability. At high temperatures, proteins that support and maintain cell membranes may be denatured, increasing membrane permeability.How may membrane permeability change at low temperatures?

It is important that a cell membrane is intact as it protects cell contents from the external environment, and controls what can enter and exit the cell. At temperatures below normal, cell membrane permeabil...
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Answered by Raisa L. • Biology tutor
9610 Views

Describe how a non-competitive inhibitor works to inhibit the activity of an enzyme.

Non competitive inhibitor binds to allosteric site of the enzyme (does not bind to the active site of the enzyme). This binding alters the tertiary structure of the protein meaning that the active site of th...
AC
Answered by Adam C. • Biology tutor
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