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Biology
A Level

Explain how a non-competitive enzyme inhibitor effects the rate of a reaction catalsyed by an enzyme?

A non competitive enzyme binds to the enzyme but not at the active site. This creates an enzyme inhibitor complex. The binding of the inhibitor to the enzyme influences the chemical bonds (for example hyd...

Answered by Biology tutor
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What are the two types of nucleotide bases which make up DNA, and which bases bond with one another? What is the difference with these bases in RNA?

The two types of nucleic bases are purines and pyrimidines. The purines are adenine and guanine, and the pyrimidines are cytosine and thymine. Purines always bond with pyrimidines and in DNA, adenine and ...

Answered by Nour J. Biology tutor
3293 Views

What is the basic biochemistry of carbohydrates?

Three types of carbohydrates: 1. Monosaccharide. "Mono" means one. Contains one sugar monomer. 2. Disaccharide. "Di" means two. Contains two sugar monomers. 3. Polysaccharide. "Po...

Answered by Beth G. Biology tutor
2387 Views

What is the difference between type 1 and type 2 diabetes?

Both types mean that the person's body cannot make enough insulin to decrease blood glucose concentrations after a meal. Type 1 is caused by the body's immune system attacking the cells in the pancreas wh...

Answered by Natasha S. Biology tutor
2454 Views

Explain how neurons communicate across a synapse.

  1. A neuronal action potential depolarises the pre-synaptic membrane (neuron 1) causing voltage-gated calcium channels to open.2) Extracellular calcium ions bind to receptors on the pre-synaptic membra...
Answered by Biology tutor
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