Top answers

Biology
A Level

Effect of temperature on enzyme catalysed reaction

  1. Increasing temperature increases KE of molecules1. so more enzyme-substrate (E-S) collisions1. more E-S complexes formed2. Hydrogen/ ionic bonds broken2. Enzyme becomes denatured2. Active site chang...
KC
Answered by Kelvin C. Biology tutor
2177 Views

Explain how the chromosome number is halved during meiosis.

Meiosis is formed of meiosis I and meiosis II. You start with a diploid cell (2n). The DNA is replicated in this diploid cell and recombination occurs, where the two chromosomes may swap over bits of DNA....

SW
Answered by Susannah W. Biology tutor
19810 Views

What is the induced-fit model of enzyme action

Enzyme has an active site that is not quite complementary to substrateActive site changes shape when substrate binds It becomes complementary to substrate

KC
Answered by Kelvin C. Biology tutor
3507 Views

Can you explain the difference between simple and facilitated diffusion?

The way I remember this is that simple diffusion is simple, and as such, there are no transporters involved. It is also simple in the sense that molecules may only travel...

SC
Answered by Shaqil C. Biology tutor
5330 Views

What is the function of mitochondria in an animal cell?

Mitochondria is the ‘power house’ of the cell and is where aerobic respiration occurs. Mitochondria provides energy for most chemical reactions in the cell in the form of ATP which is generated via aerobi...

ZN
Answered by Zayd N. Biology tutor
3328 Views

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