Top answers

Describe the action of insulin for the control of blood glucose concentration

Insulin is made in the beta cells of the pancreas. They act on receptors on the target cells. This controls the uptake of glucose in the target cells by regulating the inclusion of channel proteins on the ta...
Answered by • Biology tutor
2700 Views

What is the founder effect? How can it influence the genetic profile of a population?

The founder effect occurs when a small number of individuals moves away from the main population, populate a new area, and found a new population. Two notable effects on the genetic profile of a founder popu...
LR
Answered by Leonie R. • Biology tutor
11031 Views

What happens to DNA during mitosis?

Prophase The chromatin wraps around the histones to become condensed. This is where the chromosomes first become visible. Metaphase The chromosomes line up on the equator of the cell and the spindle starts t...
Answered by • Biology tutor
2644 Views

Suggest 3 ways in which starch’s structure is related to its function.

Starch is insoluble and therefore doesn’t affect the water potential. Starch forms a compact helical structure and therefore large amounts can be stored in a small space.Starch is a large molecule and theref...
MG
Answered by Monisha G. • Biology tutor
3599 Views

How does myelination impact the rate of nervous impulse conduction, include examples

Myelination increases the speed of nervous impulse conduction. Allows saltatory conduction - the impulse can jump from node (of ranvier) to node, rather than travelling continuously which takes longer. Examp...
JA
Answered by Janita A. • Biology tutor
3215 Views