Summary Ch1 Biological Molecules notes A* AQA A Level Biology
8 views 0 purchase
Course
Unit 1 - Biological molecules
Institution
AQA
Book
AQA Biology A Level Student Book
A set of thorough and concise notes created and used by an A* grade student to revise Biological Molecules (ch 1 of the A Level AQA Biology course). The notes are detailed and clearly explain the topic by breaking each process down into steps. It includes clear and detailed diagrams and includes al...
,Bonding
• Sharing of electron pairs between atoms.
• Covalent bonds • Forms a strong covalent bond with weak intermolecular forces.
• Transfer of electrons.
• Ionic bonds • Negative ions and positive ions attract (like charges)
• Weak bond but strong intermolecular charge.
• Uneven distribution of an electron pair in a covalent bond.
• Hydrogen bonds • Creates a polar material
• One atom is more positive and one is more negative
, Hydrogen bonding
• The O is more negative than the H as
electron pair is close to O
• This makes it 𝛿- and the H 𝛿+.
• Due to the charged atoms, the H from
other molecules is attracted to the O by a
hydrogen bond.
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 EFT, 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 this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller tabbyp. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R105,24. You're not tied to anything after your purchase.
