Top answers

What is the structure of DNA?

DNA is a double helix. Consisting of two strands, which are made up of bases A T C and G Complementary base pairing occurs, where if part of one strand contains an A, the same part of the other strand contai...
TD
Answered by Thomas D. • Biology tutor
4072 Views

Is respiration the same thing as breathing?

No, they are not the same (although they do both involve the respiratory system!). The key differences:Breathing is the process of moving air in and out of the lungs - like when you take a breath.Respiration...
RL
Answered by Rhiannon L. • Biology tutor
30856 Views

What are the four levels of protein structure?

Primary - The sequence of amino acids in the Protein, defined by the DNA sequence coding for the protein. Secondary - Any folding or coiling within the protein which are stabilised by hydrogen bonds. The two...
TN
Answered by Theo N. • Biology tutor
6110 Views

What happens in the process of eutrophication?

1. Fertilisers are washed into waterways by rain or irrigation. 2. The increased availability of nutrients causes aquatic plant life to grow rapidly. 3. An algal bloom occurs, obscuring light from the plants...
AA
Answered by Alexander A. • Biology tutor
11831 Views

Explain why your genes might influence how drugs work in the body. (3)

Some drugs need to be converted into other molecules so the body can use them effectively. This conversion is done by enzymes, which are protiens. Protiens are made up of amino acids, which are coded for by ...
MB
Answered by Molly B. • Biology tutor
7821 Views