Presentation
Biology Paper 2 clarification
This document gives the topics within paper 2 and explains them in its simplest form with key facts. Very useful to remember key facts and the basics of each topic.
[Show more]Preview 2 out of 11 pages
Add to cartSome examples from this set of practice questions
1.
DNA + GENES QUICK DESCRIPTION
Answer: - A gene is a small section of DNA on a chromosome -(smallest to largest): gene - DNA - chromosome - nucleus - cells -DNA consists of two strands (each strand is a polymer). Two strands wrap in a double helix structure
2.
What is a Polymer?
Answer: A polymer means that each strand is made by joining together other smaller molecules
3.
DNA - ZOOMED DESCRIPTION
Answer: DNA is actually a polymer as they are made up of little units called Monomers Each Monomer is called a nucleotide Nucleotide: any of a group of molecules that, when linked together, form the building blocks of DNA
4.
4 different bases of DNA
Answer: adenine (A) thymine (T) cytosine (C) guanine (G) *only complementary bases can pair so: A and T C and G
5.
GENE
Answer: a gene: a particular sequence of bases codes for protein -Each group of 3 bases is called a triplet and codes for a specific amino acids (i.e. \\\'ACT\\\')
6.
Main uses of proteins
Answer: Main uses of protein: -enzymes ~ act as biological catalysts -hormones -Structural proteins
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
You can quickly pay through credit card for the summaries. There is no membership needed.
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!
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
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.
Stuvia is a marketplace, so you are not buying this document from us, but from seller Fahmed. Stuvia facilitates payment to the seller.
No, you only buy these notes for £0.00. You're not tied to anything after your purchase.
4.6 stars on Google & Trustpilot (+1000 reviews)
80189 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now