Top answers

Biology
All levels

When playing football, a footballer's body temperature increases. Explain how the brain monitors body temperature

After reading this question we know that exercise causes body temperature to rise. The question is asking how the brain monitors body temperature, with the key words being 'explain' an...

NA
Answered by Natalia A. Biology tutor
5603 Views

What are the four levels of protein structure? Please name and describe each level.

Primary - where amino acids are in the correct order in the polypeptide chain.

Secondary - where small structures within the chain begin to form (including alpha helices and beta pleated ...

LY
Answered by Leah Y. Biology tutor
7699 Views

Regarding muscles and movement, what is the concept of the sliding filament mechanism?

Inside the sarcomere, the myosin filament and actin filament slide over eachother making the sarcomere shorter- at rest there is no cross bridge, actin and myosin are apart, ADP + Pi are bound to myosin- ...

VT
Answered by Victoria T. Biology tutor
2872 Views

What is allostery and what are the differences between competitive and non competitive inhibitors?

Enzymes have an active site and allosteric sites. Allosteric sites regulate the activity of the enzyme.An allosteric enzyme could be- an allosteric activator which binds and stabilises the active form of ...

VT
Answered by Victoria T. Biology tutor
7196 Views

What is the difference between secondary and tertiary protein structure?

Secondary: localised folding within the polypeptide chain that is stabilised by hydrogen bonds. The most common secondary protein structures are alpha helices and beta sheets. Tertiary: this is the final ...

EW
Answered by Emma W. Biology tutor
20531 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