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Biology
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Explain why it is important to take a full course of prescribed antibiotics.

An individual may feel better before completing a full course of antibiotics, however, this does not mean that all of the bacteria in the body have been destroyed.

If low levels of 

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Answered by Laura M. Biology tutor
9423 Views

What is an enzyme and how does it work?

An enzyme is a biological catalyst (something that speeds up a chemical reaction), which is a protein, a chain made of many amino acid molecules. An enzyme has its own unique three-dimensional structure, ...

MB
Answered by Merle B. Biology tutor
5156 Views

What is the difference between diffusion and active transport?

Diffusion is the movement of particles from a high concentration to a low concentration. This process does not require energy. An...

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Answered by Emma W. Biology tutor
64257 Views

Explain the structure of DNA.

DNA is a polymer made up from monomer units. The monomers that make up a DNA molecule are called nucleotides. Nuceleotides are made up of a nucelic acid (adenine/guanine/thymine/cytosol); a five carbon...

GC
Answered by Geraldine C. Biology tutor
4199 Views

Explain why an enzyme catalyses only one reaction.

Enzymes only have one active site which is only complementary to one specific substrate. 

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Answered by Luckksha L. Biology tutor
16875 Views

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