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Describe is photosynthesis?

The chemical change which happens in the leaves of green plants. It is the first step towards making food - not just for plants but ultimately every animal on the planet. During photosynthesis: Light energy ...
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Answered by Marie B. • Biology tutor
4227 Views

What is an enzyme and explain the effect of two environmental factors on their efficiency?

Enzymes act as biological catalysts for reaction that occur in organisms such as animals and plants. This means that they help to speed up reactions, or allow them to take place at lower activation energy le...
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Answered by Oliver C. • Biology tutor
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Describe the role of RuBISCO in photosynthesis.

RuBISCO is an enzyme that is involved in the light independent reactions of photosynthesis, specifically, in the Calvin Cycle. This reaction takes place in the stroma. It catalyses the reaction of carbon dio...
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Answered by Claudia D. • Biology tutor
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Label the parts marked on the diagram of the eye

Part 1) - the retina It contains light sensitive cells - the rods/cones Part 2) the vitreous humour It maintains the shape of the eye
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Answered by Niamh O. • Biology tutor
5409 Views

I have a DNA molecule with the bases A, C, G on one side. Complete the model by filling in the missing pair bases.

This is an easy one if you just remember two simple facts. A binds to T and C binds to G Since we have the bases A, C, G to pair with now we know, the answer must be.....? T, G, C !
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Answered by Niamh O. • Biology tutor
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