Summary AQA A level Biology Topic 1 Revision Notes
33 views 1 purchase
Course
Unit 1 - Biological molecules
Institution
AQA
These are revision notes regarding the first topic of Biological Molecules taught in Year 12. They have notes under each topic and meet the specification. This is a really helpful tool if you do not want to waste your time making notes. These are handy and helpful.
Monomers are smaller units which can create larger molecules
Polymers are made from repeating units of monomers bonded together.
Monomers Polymers
Glucose Starch
Cellulose
Glycogen
Amino Acid Protein
Nucleotide DNA and RNA
Fatty Acids Lipids
Two key chemical reactions:
Condensation :Joining two molecules together creating a chemical bond and removing
water molecules.
Hydrolysis: Uses water to break the chemical bonds between two molecules.
Monosaccharide Disaccharide Polysaccharide
Glucose Sucrose Starch
Fructose Maltose Cellulose
Galactose Lactose Glycogen
Disaccharides:
Made by two monosaccharides joined together by a
glycosidic bond formed by a condensation reaction.
Glucose + Glucose → Maltose + Water
Glucose + Galactose → Lactose + Water
Glucose + Fructose → Sucrose + Water
Polysaccharides:
Created by condensation reactions between many
glucose monomers.
Starch is stored as glucose in plants.
Cellulose provides structural strength in plants.
Glycogen is found in animals and stores of glucose
found in liver and muscle cells.
1-6 glycosidic bonds creates branched structure
The benefits of buying summaries with Stuvia:
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
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
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 hitumistry22. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.33. You're not tied to anything after your purchase.