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Biology
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What is an enzyme? And what things can affect them?

An enzyme is a substance produced by a living organism than enables reactions to happen faster or more efficiently.

Each enzyme has a 

SR
Answered by Susannah R. • Biology tutor
4067 Views

Describe the basic structure of a DNA and complementary base pairing.

DNA is a large polymer consisting of two DNA strands that form a double helix. Each strand is made up of bases. In DNA, there are four different bases:Adenine, Th...

TD
19531 Views

What is an Extremophile?

An extremophile is an organism that can live in extreme conditions such as high temperatures, high pressures and high acidity.
An example of an extremophile is Giant tube worms. They live miles b...

EO
Answered by Emily O. • Biology tutor
11382 Views

How do plant stomata open and close?

Stomata can be thought of as gates. This is why the size of the guard cells is so important. How the guard cells change in size is a simple matter of how much fluid they can hold - their turgor. Osmosi...

SM
Answered by Sarah M. • Biology tutor
47242 Views

Describe how antibiotic resistance occurs.

Firstly, antibiotic resistance has to be gained by a bacterium through the mutation of a gene. This can occur due to, for example, the overuse of antibiotics or failure to complete a full course of ant...

AH
Answered by Anita H. • Biology tutor
18205 Views

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