Top answers

Biology
GCSE

Different enzymes catalyse specific reactions. Explain why enzymes can only catalyse specific reactions.

A simple way of thinking about why enzymes catalyse only specific reactions is to think of the enzyme and the substrate (the compound the enzyme is acting upon) as a lock and key system. Enzymes have a pa...

OD
Answered by Oliver D. Biology tutor
8588 Views

Why does temperature affect rate of reaction?

Increase temperature means molecules have increased kinetic energy and so move around more . Increasing the frequency and power of collisions leading to more enzyme substrate complexes forming and increas...

HA
Answered by Haider A. Biology tutor
2486 Views

What does the mitochondria do?

It is the powerhouse of the cell. produces energy (ATP) from respiration for the body to use.

RH
Answered by Robert H. Biology tutor
2965 Views

Name and describe the 4 stages within mitosis? [12 marks]

Prophase [1 mark] nuclear membrane breaks down [1 mark] chromosomes condense [1 mark] Metaphase [ 1 mark] chromosomes are lined up [ 1 mark] along the cell's equator [1 mark]Anaphase [1 mark] one set of c...

IR
Answered by Ismay R. Biology tutor
2520 Views

How are nutrients absorbed into the circulatory system in the small intestine?

Firstly I would ensure the student understands the basic concepts of diffusion and what nutrients are. I would describe how food substances move through the digestive system and break down into amino acid...

PC
Answered by Pippa C. Biology tutor
2790 Views

We're here to help

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

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences