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GCSE

What is the role and structure of enzymes in the human body?

The role of enzymes are to act as a catalyst to speed up the rate of chemical reactions within the human body. They do this by binding to a molecule or substrate and breaking it up or by combining two mol...

Answered by Clement H. • Biology tutor

2648 Views

How do I recognise the different phases of mitosis by simply looking at an image (e.g. electron micrograph)?

When coming across a question like that, I would recommend to always first recall the different stages of mitosis in their correct order, and to remember each phase along with a

Answered by Safiye Amina R. • Biology tutor

2300 Views

Explain the structures and steps involved in the coordination of the reflex action. (6 marks)

To score full marks in this question the student should provide:'Scientifically relevant facts, events or processes are identified and given in detail to form an accurate account.' (Level 2: 4-6 marks)The...

Answered by Nelima H. • Biology tutor

10282 Views

How does the body respond to increased body temperature in order to maintain homeostasis and why is this an important mechanism ?

The body responds in three ways: by the blood vessels in our skin dilating (vasodilation) so heat is brought the surface and can be lost by radiation, by sweat glands secreting sweat loosing heat that is ...

Answered by Ailsa F. • Biology tutor

2071 Views