Top answers

What are the different types of neurones in the body?

A neurone is a special type of cell in the body which transmits electrical impulses. Neurones can be classified into different types based on the information they receive and pass on. The 3 main types of neu...
PC
Answered by Phoebe C. • Biology tutor
4339 Views

Explain the role of plant hormones in plant shoot and root growth

Auxins are degraded within the tips of the shoots of the plant exposed to sunlight, and gather on the shaded side of the shoots. Gathered auxins enourage cell elongation, and the shoot to grow upwards, towar...
EL
Answered by Edward L. • Biology tutor
8037 Views

Explain how DNA is replicated and why this is important in biology.

When cells divide by cytokinesis the nucleus also has to divide so that each new cell contains a nucleus with a complete copy of all of the genetic information. DNA replication therefore needs to ensure that...
DS
Answered by Danya S. • Biology tutor
14197 Views

How does the wave of conduction pass through the heart?

Firstly, the 'wave of excitation' is produced by the sinoatrial node (SAN) in the top of the right atrium - this is also known as the pacemaker, as this is what controls the rate of contractions. This wave p...
EB
Answered by Elisabeth B. • Biology tutor
10720 Views

What is the point of anerobic respiration?

Anerobic respiration is used when AEROBIC respiration can no longer take place. This is because there is a deficit in oxygen so the process of aerobic respitartion can no longer occur. The organism still req...
WM
Answered by Wajahat M. • Biology tutor
4299 Views