Top answers

All subjects
All levels

What affects enzyme activity?

Enzyme activity is dependent on five different factors. These include temperature, pH, concentration of substrate, concentration of inhibitor and concentration of the enzyme itself. Firstly, most enzymes ...

KF
Answered by Kristina F. Biology tutor
7000 Views

What is an enzyme?

An enzyme is a biological catalyst that enables reactions to occur by decreasing the activation energy they need. Not only would certain reactions not take place without the enzyme, they are also importan...

KF
Answered by Kristina F. Biology tutor
2847 Views

Cells becoming resistant to bacteria; Within a population of bacteria, NO cells are resistant to antibiotics. Over time, ALL cells are resistant to antibiotics. Outline the steps of natural selection that lead to a fully resistant population:

  • Within the bacterial population, the cells obtain different types of mutations. - One type of mutation is antibiotic resistance. - Some types of mutations are harmful to the cell, some have no or li...
ES
Answered by Emmaline S. Biology tutor
2048 Views

How should I structure my personal statement?

In terms of actual structure, the classic one is just fine, Introduction, Main Body and Conclusion. However, there's a set of questions you should be able to respond to in each section. I do believe havin...

CB
2252 Views

ما هو نوع المصدر وقفة في عبارة: "و لعل وقفة أمام المسجد الأقصى"؟

مصدر مرة

HK
Answered by Helen K. Arabic tutor
14200 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