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How is a root hair cell specialised to its function?

Root hair cells have a very large surface area due to them being very long and having hair like projections. This allows more active transport of mineral ions to take place so the plant is able to take in as...
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Answered by Emily B. • Biology tutor
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How are blood glucose levels regulated in the body?

When blood glucose levels drop too low it is detected by hypothalamus. The release of insulin by the pancreas is stopped so no more glucose is converted to glycogen. Instead glycogen, which is stored in the ...
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Answered by Victoria J. • Biology tutor
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How are animals and plants adapted to their niche?

Animals and plants display structural and behavioural adaptations to their surroundings. Each animal and plant faces certain challenges to their survival such as predators, harsh weather or low food resource...
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Answered by Rosanna S. • Biology tutor
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Describe the hormonal control over the menstrual cycle in females.

Menstruation in women is under the influence of the hypothalamic-pituitary-ovarian axis, or HPO axis. The pituitary gland secretes follicle-stimulating hormone (FSH) and luteinising hormone (LH), which act t...
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Answered by Tom C. • Biology tutor
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What is the difference between the two main schools of thought on enzyme function?

The first of the two major theories are Lock and Key mechanism, which describes the perfect design of the enzyme active site to that of its substrate so that they can immediately interact on contact without ...
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Answered by Jonathan C. • Biology tutor
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