Search for notes by fellow students, in your own course and all over the country.
Browse our notes for titles which look like what you need, you can preview any of the notes via a sample of the contents. After you're happy these are the notes you're after simply pop them into your shopping cart.
Title: Cell structure and function
Description: Cellular organelle study notes used for first year bachelor of Biomedical science at Queensland University of Technology. Basic foundation for anyone studying or wanting to study biology or medicine at university.
Description: Cellular organelle study notes used for first year bachelor of Biomedical science at Queensland University of Technology. Basic foundation for anyone studying or wanting to study biology or medicine at university.
Document Preview
Extracts from the notes are below, to see the PDF you'll receive please use the links above
182 Lecture 7 Organelles & their functions
NUCLEUS
Contain most genetic information *is some in mitochondria and chloroplasts
- Surrounded by a double membrane with large pores (pore complex)
- Enveloped by nuclear lamina – protein filaments that maintain shape
- Contains Chromosomes made of chromatin (appear diffused until division X)
- Makes mRNA for protein synthesis – get translated by ribosomes
- Centre = Nucleolus
o Makes rRNA via DNA instructions
o Is what exits into cytosol and turn into ribosomes
RIBOSOMES
Are not enclosed in a membrane and create protein syntheses
- Free – suspended in cytosol
- Bound – attached to RER or nuclear envelope
o Can alternate between free and bound
ENDOMEMBRANE SYSTEM
Functions:
- Synthesis and transport proteins
- Metabolism and movement of lipids
- Detoxification
- Connect or transfer proteins via Vesicles
- Regulate protein traffic and perform metabolic functions
ENDOPLASMIC RETICULUM
A network of tubules and sacs (Cisternae)
Is connected to the nuclear envelope
More than ½ of the total membrane within the cell
There is a membrane that separates the ER Lumen (internal compartment) from the
cytosol
Title: Cell structure and function
Description: Cellular organelle study notes used for first year bachelor of Biomedical science at Queensland University of Technology. Basic foundation for anyone studying or wanting to study biology or medicine at university.
Description: Cellular organelle study notes used for first year bachelor of Biomedical science at Queensland University of Technology. Basic foundation for anyone studying or wanting to study biology or medicine at university.