Top answers

What is the difference between vaccines and immunisation?

Immunisation is the process of becoming "immune" to a pathogen, in other words once you are exposed to the pathogen again you won't become ill (present with the symptoms). After your body is expose...
JW
Answered by Jake W. • Biology tutor
3692 Views

Define active transport.

Active transport uses energy in the form of ATP hydrolysis to move a molecule against its concentration gradient.
JA
2725 Views

What happens to the filtrate in the loop of Henle?

The point of the loop of Henle is to reduce the quantity of water in the filtrate and so reduce water loss. The loop is split into three key areas: The descending limb, the thin ascending limb and the thick ...
SM
Answered by Sam M. • Biology tutor
45477 Views

What are the enzymes involved in the process of DNA replication?

DNA Helicase - unwinds and unzips the DNA double helix by breaking the hydrogen bonds DNA Gyrase - this helps to stabilise the single strands Single-Strand Binding Proteins - these proteins, though not exact...
DG
Answered by Dominic G. • Biology tutor
12180 Views

Which organelle is expected to be found in above-average quantities in cardiac tissue and what is the purpose of this organelle?

Cardiac tissues such as those present in the heart have a high energy requirement as they must contract strongly to facilitate the transportation of blood around the body. This requires a high level of energ...
HC
Answered by Harry C. • Biology tutor
3605 Views