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Biology
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What happens to the rate of an enzyme-catalysed reaction when temperature increases? And when pH changes?

As temperature increases, the molecules involved in the reaction gain kinetic energy, increasing the chances of collision between the substrate molecules and the active sites of the enzymes, a step that i...

MD
Answered by Maria D. Biology tutor
11060 Views

Explain, with the use of a punnet square, heterozygous inheritance.

First, let's make sure we're clear on what heterozygous inheritance means. Hetero means different like heterosexuals are attracted to a different gender than themselves, ...

KM
Answered by Kristina M. Biology tutor
2779 Views

What are the functions of glycoproteins in the cell membrane? (6 marks)

  • Antigens - cell recognition/cell signalling - receptor or binding site for hormones - cell adhesion - attach to water molecules to stabilise the cell membrane - receptor/ binding site/ trigger
  • ...
JM
Answered by Jigi M. Biology tutor
21427 Views

How does sweat cool the body down? (2 marks)

  • Water in the sweat evaporates due to the body temperature of the organism - This takes heat with it
JM
Answered by Jigi M. Biology tutor
8402 Views

How do humans and other mammals keep homeostasis of their body temperature?

Humans and other mammals keep their body temperature within just a few degrees of 37 degrees celcius. To achieve homeostasis of body temperature, three components are involved: a receptor, a co-ordinator,...

RD
Answered by Rebecca D. Biology tutor
8680 Views

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