Top answers

What are the stages of Mitosis and how do I remember what happens in each of them?

The easiest way of remembering the stages of Mitosis (which is when a divides) is by using a mnemonic that will help you remember, with a one word description of each phase to help you remember what happens ...
SN
Answered by Sue N. • Biology tutor
70530 Views

How does a nerve impulse cross a neuromuscular junction

When an action potential arrives at the junction, the depolarisation causes voltage-gated calcium channels to open resulting in the influx of calcium ions in to the pre-synaptic neurone. This triggers the mo...
EM
Answered by Elke M. • Biology tutor
2536 Views

Describe and explain how the alveoli are adapted to facilitate effective gas exchange in the lungs.

The alveoli have a number of adaptations for effective gaseous exchange. Firstly, they have a very large surface area to volume ratio ; the combined surface area of the alveoli is approximately 50-75m 2 - la...
Answered by • Biology tutor
9969 Views

What is the name of the high-energy molecule used by cells?

ATP (adenosine triphosphate) is the energy-carrying molecule used in cells. It is produced by mitochondria during aerobic respiration via the tricarboxylic acid (TCA) cycle. Additionally, it is also produced...
KG
Answered by Kyle G. • Biology tutor
3165 Views

How is a sperm cell adapted to its role?

Many mitochondria which release lots of energy allowing it to swim.Flagellum (tail) which allows it to swim to the egg.Enzymes in the head which allow it to digest the egg cell membrane.
FH
Answered by Fay H. • Biology tutor
2918 Views