Top answers

Describe the changes that take place to maintain glucose concentration in exercise.

During exercise, blood glucose concentration falls due to the increased energy demand and glucose uptake of skeletal muscles. This fall in glucose concentration is detected by the alpha and beta cells in the...
HB
Answered by Henry B. • Biology tutor
3310 Views

Describe the structure of DNA

Deoxyribonucleic acid (DNA) is the hereditary material in almost all organisms and is responsible for carrying out genetic instructions in the cell. DNA is a polymer of nucleotides and each nucleotide has 3 ...
JP
Answered by Joe P. • Biology tutor
3449 Views

Describe how synapses work in the context of the nervous system.

Synapses are really important in the transmission of information signals through the nervous system. They connect two (or more) neurons, aiding the passage of information through the system. This passage of ...
JJ
Answered by Jonathan J. • Biology tutor
5984 Views

Explain why a balanced diet is important for health and what a balanced diet consists of.

A balanced diet is one that contains the correct balance of different food groups to avoid malnourishment. Carbohydrates are required for energy release to the body, proteins are used in the body for growth ...
AA
Answered by Afiqah A. • Biology tutor
3803 Views

What is the structure and function of a sensory neurone?

A sensory neurone is made up of 3 main components: the dendron, the cell body and the axon. At one end of the sensory neurone is the receptor cells where the nerve impulse begins. At the other end of the neu...
BM
Answered by Becky M. • Biology tutor
8844 Views