Top answers

Name the process by which fatty acids and glycerol enter the intestinal epithelial cell from the lumen of the intestine

Simple diffusion - fatty acids and glycerol are lipophilic and hydrophobic, therefore can diffuse straight through the lipid bilayer membrane of the epithelial cells down the concentration gradient
JD
Answered by Jack D. • Biology tutor
12542 Views

Can you explain the difference between Type 1 and type 2 diabetes?

Endocrine parts of pancreas called Islets of Langerhans . 2 populations of cells: A cells - secrete glucagon (RAISES blood glucose conc) - when all the 'gluc has gone' B cells - secrete insulin (LOWERS blood...
NH
Answered by Noura H. • Biology tutor
3476 Views

What is the difference between DNA and RNA?

DNA and RNA are both examples of nucleic acids, and so are formed from long chains of nucleotides. However, there are three broad structural differences between the two. 1) DNA is usually found double-strand...
LK
Answered by Luke K. • Biology tutor
6123 Views

If a person drinks a lot of water, the water content of their blood will increase. Describe how the water content of their blood is regulated.

Osmoreceptors in the hypothalamus detect the increase in water concentration. This stimulates the pituitary gland to release less ADH. This reduces the amount of ADH in the blood and so, reduces the amount o...
AS
Answered by Avnish S. • Biology tutor
10947 Views

What is the function of T-helper cells?

T-helper cells are a kind of lymphocyte that are a key part of the adaptive immune system. The adaptive immune system is largely coordinated by T cells, of which there are several types, and B cells, the oth...
TF
Answered by Theo F. • Biology tutor
10078 Views