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Explain why a plant tip will bend towards a light source (2)

When a light source is shone at a plant, a hormone known as auxin travels to its shady side, which enables this side of the plant to elongate its cells and stretch. This results in the tip of the plant bendi...
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Answered by Leo D. Biology tutor
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Briefly describe the bonding between Adenine and Thymine units (1)

The bonding between adenine and thymine consists of two hydrogen bonds between each unit(The way I like to remember this is that the Walker vehicles from Star Wars are known as 'AT AT's)
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Answered by Leo D. Biology tutor
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Explain why short bursts of anaerobic exercise is possible (in mammals), but impossible at longer durations? (4)

In the absence of oxygen, the anaerobic glycolysis pathway can occur, which produces roughly 1/15th of the normal yield of ATP from aerobic respiration, as well as two molecules of NADH (reduced NAD). Simila...
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Answered by Leo D. Biology tutor
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Describe and explain how the secretion of ADH affects urine produced by the kidneys.

ADH diffuses into the bloodstream and acts in the kidney to regulate the volume and concentration of the urine . The ADH binds onto the receptors on the collecting duct controlling the permeability of the co...
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Answered by Adithi M. Biology tutor
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What are the 4 main areas of the brain and what functions do they each do?

Cerebrum (also called the cerebral cortex) gives us our personality and intelligence CereBELLum keeps us balanced and controls coordination (the way I remember this is that BELLe from beauty and the beast is...
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Answered by Chloe F. Biology tutor
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