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Explain what happens in the body when a Polio vaccine is administered.

The vaccine contains a weakened or inactivated form of the virus. The viral particle displays an antigen on its surface specific to poliovirus. Once in the blood, a specific helper T cell will detect the ant...
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Answered by Freddie G. • Biology tutor
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Describe the components of the fluid mosaic model (6).

The fluid mosaic model describes the typical plasma membrane as a phospolipid bilayer (1), composed of phosphates with fatty acid tails, which face each other inwardly. Within the phospholipid bilayer are di...
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Answered by Gregor C. • Biology tutor
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What is the difference between respiration and breathing?

Respiration is the biochemical breakdown of glucose in the cell to prouce energy in a usable form of ATP (the body's energy currency). Respiration can be in the presence of oxygen (aerobic) or without oxygen...
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Answered by Ollie W. • Biology tutor
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How are the alveoli adapted to allow efficient gas exchange within the lungs?

The efficiency of gas exchange across a surface is determined by Fick's Law. Fick's Law states that, for the diffusion of a gas to be efficient, three conditions should be met. Firstly, the surface area of t...
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Answered by Olivia P. • Biology tutor
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Chlorophyll b, chlorophyll a and carotene are all key pigments in the photorespiration process. a) Explain the role of pigments in the production of ATP [3], b) Explain the role of ATP in the cellular processes of plants [1], Why is it advantageous for pl

Q: Chlorophyll b, chlorophyll a and carotene are all key pigments in the photorespiration process. a) Explain the role of pigments in the production of ATP [3], b) Explain the role of ATP in the cellular pro...
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Answered by Joseph M. • Biology tutor
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