100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Summary A level Biology Unit 1 - Biological molecules - Lecture notes $10.43   Add to cart

Summary

Summary A level Biology Unit 1 - Biological molecules - Lecture notes

 15 views  1 purchase
  • Course
  • Institution

Detailed notes, with diagrams for further understanding. In depth, yet brief information extracted from the Collins official AS Biology students textbook and the CGP A-Level Biology textbook, as well as exam tips from a straight A student

Last document update: 1 year ago

Preview 2 out of 11  pages

  • August 31, 2023
  • August 31, 2023
  • 11
  • 2022/2023
  • Summary
avatar-seller
🍃
Biological Molecules

Monomers and Polymers

Polymer→ A substance containing large molecules, made up of many repeating
sub-units, known as monomers JOINED BY COVALENT BONDS


REMEMBER: KEYWORDS ARE WHAT THE EXAMINERS
LOOK FOR

Monomer→ Single units, that join COVALENTLY , to form polymers

Hydrolysis→ The process by which a polymer is broken down into its constituent
monomers, using WATER

Condensation→ The process by which monomers bond together to form a
polymer, releasing ONE MOLECULE OF WATER PER BOND




Biological Molecules 1

, Examples of biological molecules:

1. Carbohydrates 4. Nucleic acids

2. Lipids 5. Proteins

3. Water



Water
Water is a POLAR molecule



🍃 This means that the electrons in the covalent bond, aren’t evenly
distributed. Oxygen is more ELECTRONEGATIVE, meaning that it
pulls the electron pair towards itself, away from the Hydrogen - this
leaves the Oxygen with a partially negative charge and the
hydrogen with a partially positive charge, forming a DIPOLE


The dipole allows water molecules to interact with each other via HYDROGEN
BONDS



🍃 This is a type of intermolecular force, found in simple molecules




Biological Molecules 2

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller ammarahissufo. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $10.43. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

75323 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$10.43  1x  sold
  • (0)
  Add to cart