Top answers

Biology
A Level

What is the difference between non competitive and competitive inhibitors?

Competative inhibitors bind with the enzyme at the active site, blocking the substrate from binding and therefor preventing the substrate from binding and forming enzyme substrate complexes. Therefor if y...

AK
Answered by Anja K. Biology tutor
6692 Views

Explain how changing one base in a DNA sequence may result in a non-functional protein being produced.

Changing one DNA base will alter one triplet in the DNA code. As each triplet codes for an amino acid this may result in a change to the primary structure of the protein produced. If the changed amino aci...

EC
Answered by Emily C. Biology tutor
14122 Views

Describe the structure of proteins

Proteins have a primary, secondary, tertiary and quaternary structure. The primary structure comprises of the specific sequence of amino acids which are held together by peptide bonds. The secondary struc...

TT
Answered by Taran T. Biology tutor
2981 Views

Why would the simple diffusion of chloride ions across a cell membrane be extremely slow?

There are differnet ways that substances can move across a cell surface; simple diffusion, facilitated diffusion, osmosis or active transport. Most substances can move across the cell membrane via simple ...

JB
Answered by Jess B. Biology tutor
39065 Views

Explain the effect succession has on biodiversity

Succession initiates in regions where there are very harsh conditions and so no organisms are able to survive (therefore little biodiveristy);

-a pioneer species with good adaptaions are able to su...

DM
Answered by Denya M. Biology tutor
9074 Views

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