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Biology
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Describe the function of the enzymes DNA helicase and DNA polymerase.

DNA helicase unwinds DNA by breaking H bonds between DNA strands. DNA polymerase joins adjacent nucleotides by forming phosphodiester bonds between them.

SC
Answered by Susannah C. Biology tutor
2646 Views

Describe the function of Anti-diuretic Hormone in the maintenance of a constant volume of water in the body.

Anti-diuretic Hormone (ADH) is secreted from the hypothalamus in the brain. If more ADH is produced, it makes the collecting ducts in the nephron of the kidneys, more permeable to water. Therefore, less w...

VH
Answered by Vinaya H. Biology tutor
3187 Views

What are the stages of aerobic respiration?

There are four stages of aerobic respiration- glycolysis, which takes place in the cell cytoplasm and the link reaction, Krebs cycle, and oxidative phosphorylation, which all occur in the mitochondria.Gly...

JM
Answered by Jessie M. Biology tutor
3480 Views

How does the adrenaline hormone cause the conversion of glycogen to glucose?

This can best be described as the second messenger model. Adrenaline is a hydrophillic hormone so it only acts on receptors on the cell surface membranes. The hormone fuses to the receptor site which then...

KP
Answered by Kimberley P. Biology tutor
11071 Views

Mitosis is important in the life of an organism. Give two reasons why

  1. Growth / increase in cell number2. Replace cells / repair tissue / organs /body
LD
Answered by Lucy D. Biology tutor
9376 Views

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