Top answers

All subjects
A Level

Describe the synthesis of glomerular filtrate from the blood

Ultrafiltration in the glomerulus caused by high hydrostatic pressure due to the diameter of the afferent tubule being larger than that of the efferent tubule forcing smaller blood plasma, ions and other ...

RN
Answered by Ram N. Biology tutor
3021 Views

How to describe an action (past , present , future) in French ?

In French a specific expression is used to describe to action : "être en train de" whereas the English language uses perfect tenses (to be (past , present , future) + verb-ING) . Effectively no ...

Answered by French tutor
3157 Views

Describe the structure of starch

Starch is a polysaccharide of alpha glucose. It is made up of amylose and amylopectin. It forms a branched structure to allow it to be compact, this is due to the fact it contains 1-4 and 1-6 glycosidic b...

EC
Answered by Ediz C. Biology tutor
7039 Views

What is ATP and what makes it a good source of energy in biological processes?

ATP (Adenosine triphosphate) is a nucleotide derivative which is used to store energy to power most of the reactions in a cell. Reminder: Nucleotides are the five bases which make up DNA and RNA -...

AW
Answered by Anna W. Biology tutor
14976 Views

How is water reabsorption carried out in the kidney?

When water levels are low in the blood, osmoreceptors in the hypothalamus detect this change and trigger the posterior pituitary gland to release a hormone called ADH. ADH binds to receptors on the cell m...

JP
Answered by Jenna P. Biology tutor
3553 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning