MYTUTOR SUBJECT ANSWERS

458 views

What are the methods of immobilising enzymes?

There are four methods of enzyme immobilisation: adsorption, covalent bonding, entrapment and membrane separation.

Adsorption involves mixing the enyzme with an immobilsing support so the enzyme molecules will bind to it because of hydrophobic interactions and ionic links. The support is called an adsorbing agent and could be porous carbon, glass beads or clays.

Covalent bonds between enzyme molecules and an insoluble material, such as clay, are formed using cross-linking agents (e.g. sepharose).

Entrapping the enzyme molecules in a network or gel beads or cellulose fibres allows the enzyme to be immobilised in their natural state (not attached to another molecule). 

Membrane separation physicially separates the enzyme and substrate solutions with a partially permeable membrane. Both the substrate and product molecules are small enough to pass through the membrane.

Alice H. GCSE Biology tutor, GCSE Chemistry tutor, GCSE Maths tutor, ...

12 months ago

Answered by Alice, an A Level Biology tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

151 SUBJECT SPECIALISTS

£20 /hr

Anna H.

Degree: Anthropology (Bachelors) - Durham University

Subjects offered: Biology, Drama

Biology
Drama

“About me: Hi I’m Anna and I’m in first year, studying Anthropology at Durham University. My course has a fair bit of biology in it (genetics, evolution, health, disease etc.), and I also did Biology at A level, along with Geography an...”

MyTutor guarantee

£20 /hr

Luke C.

Degree: Biological Sciences with a year in professional placement (Bachelors) - Exeter University

Subjects offered: Biology, Physics+ 2 more

Biology
Physics
Maths
Chemistry

“My greatest passion is for biology, but I have always enjoyed studying chemistry and mathematics too. Studying these subjects has supported me during my time so far at Exeter University, even though I am still in my first year of stud...”

£20 /hr

Samantha D.

Degree: Veterinary Science (Bachelors) - Bristol University

Subjects offered: Biology, Maths+ 3 more

Biology
Maths
Chemistry
.BMAT (BioMedical Admissions)
-Personal Statements-

“About Me Hello! I study Veterinary Medicine at the University of Bristol and have always loved science – even in Year 6! I have had plenty of experience; teaching Chemistry, Biology and Maths to all age groups at school having been ch...”

About the author

Alice H.

Currently unavailable: for new students

Degree: Biology (Bachelors) - Bristol University

Subjects offered: Biology, Music+ 2 more

Biology
Music
Maths
Chemistry

“I'm a Biology student at the University of Bristol who is passionate about both science and music having studied them at A level. I would love to help anybody who is struggling with specific concepts or just needs someone to guide the...”

You may also like...

Posts by Alice

What are the methods of immobilising enzymes?

What is the myelin sheath?

What is tonality?

Other A Level Biology questions

How is a message transferred across a synapse?

Explain these 3 terms in relation to cells and osmosis: isotonic, hypertonic and hypotonic?

How does air enter the lungs for inspiration? What does the body do to make this happen?

What is the function of the myelin sheath?

View A Level Biology tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok