Lecture notes

WJEC AS-Level Biology - Cell Structure and Organelles

0 purchase

Module
BY1 - Basic Biochemistry and organisation

Institution
WJEC

Book
WJEC Biology for AS Student Book

This document covers the relevant material for WJEC (Wales) AS-Level biology unit 1.2, including the subtopics: (a) The Structure and Function of Organelles (b) The Structure of Prokaryotic Cells and Viruses (c) Cell Theory and the Similarities and Differences in the Cell Structures of Eukaryo...

[Show more]

Preview 4 out of 32 pages

View example

Uploaded on December 8, 2021
Number of pages 32
Written in 2021/2022
Type Lecture notes
Professor(s) N/a
Contains Cell structure and organelles

Luke’s Unit 1 WJEC AS-
Level Biology Notes
Unit 1.2.
Cell Structure and Organisation

Contents:
(a) The Structure and Function of Organelles
(b) The Structure of Prokaryotic Cells and Viruses
(c) Cell Theory and the Similarities and Differences in the Cell
Structures of Eukaryotes, Prokaryotes, and Viruses
(d) The Levels of Organisation

,WJEC AS-Level Biology Unit 1.2: Cell
Structure and Organisation

(a) The Structure and Function of Organelles
 The cells found in plants and animals are eukaryotic cells
→ Eukaryotic cells are membrane bound structures that contain membrane
bound organelles and a membrane bound nucleus!
 Plant and animal cells share many organelles and structures, but plant cells do have
several additional organelles and structures that are important for their stability and
function!

This image is of a typical animal cell!

1

,WJEC AS-Level Biology Unit 1.2: Cell
Structure and Organisation

This image is of a typical plant cell!

2

, WJEC AS-Level Biology Unit 1.2:
Cell Structure and Organisation
Organelle Structure Function Image
Nucleus The nucleus is a region of  Nucleus contains DNA which codes
the cell that is bound by a for or controls protein synthesis via.
double membrane called the production of mRNA templates; DNA
nuclear envelope which replication also occurs here
contains nuclear pores;  The nuclear envelope separates the
within the nucleus are contents of the nucleus from the
chromatin and a contents of the cytoplasm
nucleolus  Nuclear pores allow the transport of
mRNA and ribosomes out of the
nucleus and selected molecules to
enter
 Chromatin condenses before cell
division to form chromosomes
 The nucleolus produces rRNA, tRNA,
and ribosomes
Rough A series of flattened sacs  Packaging and storing proteins
endoplasmic enclosed by a membrane  Produces transport vesicles that
reticulum with ribosomes on the merge to form the Golgi body
surface
Smooth A system of membrane  Produces and processes lipids
endoplasmic bound sacs WITHOUT
reticulum ribosomes on the surface
Golgi A series of fluid filled,  Packaging proteins for secretion
body/apparatus flattened and curved sacs from the cell
with vesicles surrounding  Modification of proteins
the edges  Producing lysosomes & digestive
enzymes by producing their tertiary
structures

3

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 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 lukeaevans2018. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £8.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

66902 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 15 years now

Start selling

Lecture notes

WJEC AS-Level Biology - Cell Structure and Organelles

Document information

Subjects

Connected book

More summaries for

Written for

Seller

Content preview