HSC Together Year 11 Biology: Enzymes and Their Role in Cells

Biology

Back to other subjects

Enzymes and Their Role in Cells

This post will go through enzymes and their role in cells for Prelim Biology.

 

What are Enzymes and Their Role in Cells?

Enzymes are essentially a special type of protein that binds molecules called substrates, causing them to break down or stick together. Note that each enzyme protein is structured for a specific substrate. Now, these substrates will do that regardless of whether the enzymes are there although way too slowly, the enzymes simply provide a place where they CAN bind which does increase the likelihood of them actually breaking down or, sticking together which increases the reaction rate.

The set of all chemical reactions that take place in the body make up the metabolism, enzymes are therefore very important as they determine the metabolism. This video will go through enzymes in a little more detail.

 

This video also goes through enzymes.

 

Enzymes and Their Environment

Enzymes have ideal conditions in which they function, if the temperature around an enzyme is too high, or if it is too acidic, then the enzyme will denature (i.e.permanently damage the shape of the protein thus making it no longer able to function).

Note that if the substrate concentration increases, the enzyme activity will also increase until a certain point where all the enzymes are too busy to take on any more extra substrates leading to a plateau. This video will communicate how varying conditions will affect enzymes.

 

This video is a good summary of this topic.

 

Want to learn more? Check out more of our Preliminary Biology resources here!

45,861 students have a head start...

Get exclusive HSC content & advice from our team of experts delivered weekly to your inbox!

Here’s how we help...

Holistic K-12 Tutoring

Attend our master-class workshops on how to ace your essays, assessments and exams!

Comprehensive Workshops

Attend our master-class workshops on how to ace your essays, assessments and exams!

AOS asset - Rocket

Study, Uni, Career Mentoring

Attend our master-class workshops on how to ace your essays, assessments and exams!

Senior School Workshops

Attend our master-class workshops on how to ace your essays, assessments and exams!

45,861 students have a head start...

Get exclusive study content & advice from our team of experts delivered weekly to your inbox!

AOS Website Asset 2

Looking for Academic Support?

Discover how we can help you!

AOS Website Asset 1