Class Notes (835,730)
Canada (509,354)
BIOB10H3 (252)
Lecture 7

Lecture 7

5 Pages
172 Views
Unlock Document

Department
Biological Sciences
Course
BIOB10H3
Professor
Rene Harrison
Semester
Fall

Description
Lecture 7102511Mitochondria MitochondriaCome from phagocytosis of aerobic prokaryote can divide in the cell mitochondrial fissionPowerhouse of the cellFunctions 1 Site of aerobic respiration Utilizing O to extract energy from 2macromolecules primarily glucose and converting it to ATP ATP PRODUCTION 26 We use 2x 10 molecules of ATPday Atpcell energy sourceenergy is released when ATP is hydrolyzed to ADPMany mitochondria in muscle cells liver cells fat cells plant cells and sperm PICTURES OF PHASE CONTRATS RIGHT AND BRIGHTFIELD STAIN LEFT Another photo of TEM left and SEM of purified mitochondria Outer Mitochondrial Membrane OOM y 50 protein lipid ratioproteinslarge channels y Contain poriny Allow very large molecules through BACTERIA PROTEIN HOW MITOCHONDRIA WRE ONCE BACTERIA Fig 54 Beta pleated sheet Inner Mitochondrial Membrane IMM Cristaemany thin folds to increase the surface area y 75 protein lipid ratio lipidcardiolipin y Cardiolipinunique phospholipid also found in many bacterial membranes y Highly impermeable requires channels and pumpsy 100 different proteins including proteins of ETCMatrix y Gel like from high proteiny Contains DNA and ribosomes tRNA y Mitochondrial function requires 3000 proteins THEREFORE MITOCHONDRIA FUNCTION y REQUIRES NUCLEAR GENE PRODUCTS AND THESE PROTEINS MUST BE IMPORTEDTARGETED TO MITOCHONDRIAProtein translocons are also involved in import of proteins in mitochondriaMitochondria proteins are completely translated on free ribosomes in cytosol
More Less

Related notes for BIOB10H3

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit