Top answers

Explain the nervous pathway reflex when touching something hot (5 marks)

The stimulus/heat is detected by receptors in the hand It sends an impulse via sensory neurones to the spinal cord/CNSChemicals are transmitted via the synapses and diffuses across the gap The impulses trave...
LH
Answered by Lia H. • Biology tutor
2881 Views

What is the role of ADH in water homeostasis?

Homeostasis is maintaing the body's internal environment. Antidiuretic Hormone (ADH) is synthesised in the hypothalamus and secreted by the pituitary gland in response to low water in the body. It acts on th...
JA
Answered by Jemimah A. • Biology tutor
10876 Views

What is the function of mitochondria?

Mitochondria is an organelle responsible for providing energy. Mitochondria releases energy through the chemical process of aerobic cellular respiration, where one molecule of glucose can be broken down (oxi...
NF
Answered by Natalia F. • Biology tutor
10727 Views

Explain how blood glucose levels are controlled in people who do not have diabetes

Blood glucose levels are controlled by homeostasis. When people eat foods that contain a lot of starch/sugar, their blood glucose will rise above a normal level. This will be detected by cells in the pancrea...
SR
Answered by Salwa R. • Biology tutor
8154 Views

Describe the process of digestion in the mouth.

Food is broken down mechanically by chewing. Saliva secreted from the salivary glands contains amylase which breaks down starch to maltose.
EO
Answered by Emmanuel O. • Biology tutor
3513 Views