BIOL 2130 Lecture Notes - Lecture 8: Spindle Apparatus, Macrophage, Skeletal Muscle

35 views3 pages
27 Mar 2017
School
Department
Course
Cytoplasmic Organelles
Organelles
o Specialized cellular compartments
o Many are membrane-bound
o Copartetalizatio is ritial for orgaelle’s aility to perfor speialized
functions
Mitochondria
o Powerhouses of the ell
o Change shape continuously
o Mitochondrial wall consists of a double membrane with cristae on the inner
membrane
o Carry out reactions where oxygen is used to break down food
o Provides ATP for cellular energy
Ribosomes
o Biolbed dark body
o Made of protein and ribosomal RNA
o Sites of protein synthesis
o Found at two locations:
Free in the cytoplasm
As part of the rough endoplasmic reticulum
Endoplasmic reticulum (ER)
o Fluid-filled cisterns (tubules or canals) for carrying substances within the cell
o Two types:
Rough ER
Smooth ER
Rough endoplasmic reticulum
o Studded with ribosomes
o Synthesizes proteins
o Transport vesicles move proteins within the cell
o Abundant in cells that make and export proteins
Smooth Endoplasmic Reticulum
o Functions in lipid metabolism
o Detoxification of drugs and pesticides
Golgi apparatus
o Appears as a stack of flattened membranes associated with tiny vesicles
o Modifies and packages proteins arriving from the rough ER via transport vesicles
o Produces different types of packages
Secretory vesicles (pathway 1)
In-house proteins and lipids (pathway 2)
Lysosomes (pathway 3)
Lysosomes
o Meraous ags pakaged y the Golgi apparatus
o Contain enzymes produced by ribosomes
find more resources at oneclass.com
find more resources at oneclass.com
Unlock document

This preview shows page 1 of the document.
Unlock all 3 pages and 3 million more documents.

Already have an account? Log in

Get OneClass Notes+

Unlimited access to class notes and textbook notes.

YearlyBest Value
75% OFF
$8 USD/m
Monthly
$30 USD/m
You will be charged $96 USD upfront and auto renewed at the end of each cycle. You may cancel anytime under Payment Settings. For more information, see our Terms and Privacy.
Payments are encrypted using 256-bit SSL. Powered by Stripe.