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Biology
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Explain the similarities and difference between diffusion, osmosis and active transport.

Diffusion, osmosis and active transport are all transport processes. Diffusion refers to the movement of any molecules/ions apart from water whereas osmosis refers to the transport of only water. Active t...

MS
Answered by Maya S. Biology tutor
24159 Views

What is the difference between mitosis and meiosis?

Mitosis is a 4-stage process that produces 2 diploid daughter cells from a somatic parent cell (somatic cell is just another way to say any cell other than reproductive cells such as germ cells which prod...

DF
Answered by Dewi F. Biology tutor
1873 Views

How does a vaccine lead to the production of antibodies against a virus?

The vaccine contains antigens of the virus. When injected, these antigens are recognised by macrophages which engulf the antigen and present the antigens on their surface. Once the antigens are presented,...

KA
Answered by Keziah A. Biology tutor
2121 Views

Describe the structure and function of a chloroplast

Chloroplasts are organelles found only in plants that allow the plant to release energy from sunlight through photosynthesis. They are green in colour because they contain the pigment chlorophyll.

JB
Answered by Joy B. Biology tutor
3834 Views

Explain why an athlete loses water when exercising.

The athlete begins to sweat, as exercising releases energy from the body in the form of heat, so the water evaporating from the surface of the skin results in the body cooling down.

JB
Answered by Joy B. Biology tutor
1970 Views

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