Top answers

Biology
All levels

How does heart muscle contract rhythmically in unison?

The heart is composed of a specialied muscle type called cardiac muscle. This has unique properties such that each muscle cell is connected together by gap junctions in their cell membranes (electrical sy...

JC
Answered by Jonathan C. Biology tutor
5872 Views

What is the difference between a prokaryotic and eukaryotic cell?

There are several key differences between prokaryotic and eukaryotic cells. Eukaryotic cells are found in multicellular plants and animals, whereas prokaryotic cells are found in bacteria and archaea whic...

CM
Answered by Charlotte M. Biology tutor
22135 Views

Briefly describe the environmental effects of nitrogen fertilisers in a body of water

The nitrogen fertiliser would leach into the water. This would cause algae to grow exponentially on the surface of the water, therefore would reduce the amount of...

HB
Answered by Holly B. Biology tutor
2951 Views

How is an enzyme specific for a particular type of molecule?

Enzymes are protein molecules responsible for the catalysis-the increase in the rate of a reaction- of reactions taking place within our body. They are able to catalyse many reactions by their high specif...

HB
Answered by Holly B. Biology tutor
3492 Views

How are coenzymes used in the process of aerobic respiration?

Coenzymes contrary to their name aren't enzymes but are synthesised from vitamins. Their overall purpose is to bind to the active site of a specific enzyme to aid the binding of the complemenatry substrat...

SP
Answered by Sophie P. Biology tutor
20222 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:

© 2025 by IXL Learning