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Difference in structure of arteries and veins and how this relates to their function

Blood vessels allow blood to be circulated around the whole body for delivery of oxygen/nutrients and removal of waste products. The structure of arteries and veins helps them to perform their specific funct...
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Answered by Dougal T. • Biology tutor
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How are plant leaves adapted for photosynthesis?

Key Factors of Photosynthesis:LightWaterC02Therefore, adaptations are to maximise the absorption/use of these substances. Large surface area = maximum light absorptionThin, flattened surface = smaller diffus...
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Answered by Ella H. • Biology tutor
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What is the structure of DNA?

DNA, or deoxyribonucleic acid, is a polymer made up of two strands of nucleotides. Each nucleotide is made up of a phosphate group, pentose sugar and nitrogenous base (of which there are 4 types). These nucl...
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Answered by Shaurya M. • Biology tutor
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Describe what happens in each stage in the cell cycle.

Stage 1: Cell growth DNA replication Stage 2: MitosisNucleus dividesChromosomes separate Stage 3: CytokinesisCell membrane dividesTwo genetically identical cells form
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Answered by Ella W. • Biology tutor
5561 Views

How does does changing the pH affect the activity of an enzyme?

Enzymes are proteins which increase the rate of reactions by binding to substrates and forming enzyme-substrate (E-S) complexes. The part of the enzyme which binds to the substrate is called the active site....
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Answered by Ali A. • Biology tutor
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