BIOLOGY 2B03 Lecture 4: Lecture 4 Summary

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chocolateprairie-dog409

9 Feb 2012

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Oxidative and synthetic reactions break down toxic comp/fattyacids into neutral. Animal cells/plant cells oxidation of fatty acids. Breakdown of fatty acids into acetyl coa produces metabolic energy. So catalase converts it into h20 and 02. Gfp (cytosolic protein) attached with pts1 all gfp transported into perox. Pex5 cytosolic protein recognized pts1 via the tpr motif (2 alpha helices connected by a loop) Involved in atp production (site for energy conversion - nutrients to energy, done mostly by proteins embedded in inner membrane, structure = high levels of atp production. After fission growth requires syn and import of new proteins) Hydrophobic a. a. one side (n term) and basic + vely charged a. a. at the one) Stop transfer sequence 16-30 a. a. hydrophobic a. a. Gfp (cytosolic protein) attached with matrix targeting all gfp transported into mito. Import receptor has hydrophobic binding pocket that binds to hydrophobic face of the amphiphatic helix (matrix targeting seq).

Related Questions

What is the relationship of:

- glycerol and phospholipids

- heads and tail cartoon and membrane phospholipids

- condensation reactions and synthesis of membrane phospholipids

- membrane fluidity and cell function

- length of fatty acid chains in phospholipids and membrane fluidity

- saturation of fatty acid chains in phospholipids and membrane fluidity

- amphipathic nature of cholesterol and its ability to interact with membrane phospholipids

- lipid rafts and membrane fluidity

- ether linkages in phospholipids and response to acidic conditions

- ester linkages in phospholipids and response to acidic conditions

- strong detergent such as SDS and membrane proteins

- weak detergent such as Triton X-100 and membrane proteins

- detergents and their effect on lipid bilayers

ivoryrabbit483

1) In Eukaryotic cells, Glycolysis occurs in the __________,Pyruvate Oxidation and the Citric Acid Cycle occur in the ________,and the electron transport chain is in the _____________.

a) Mitochondrial matrix; Mitochrondrial inner membrane;Cytoplasm

b) Cytoplasm; Mitochrondrial inner membrane; Mitochondiralmatrix

c) Mitochrondrial inner membrane; Cytoplasm; Mitochondrialmatrix

d) Cytoplasm; Mitochondrial matrix; Mitochrondrial innermembrane

e) Mitochrondrial inner membrane; Mitochondrial Matrix;Cytoplasm

2) We can detect tyrosinase among thousands of other proteins ina mushroom extract (in a solution or in-gel) because:

a) Its bigger than other proteins

b) Its smaller than other proteins

c) Its more charged than other proteins

d) It reacts with a specific substrate to produce a coloredproduct

e) It converts a specific colored substrate to a colorlessproduct

3) The highest energy carrier (transfer molecule) in cellsis:

a) NADH

b) FADH2

c) ATP

d) GTP

e) Acetyl- coA

amaranthimpala502

Where does each of these processes take place within the cell? Possible answers: cytosol, mitochondrial matrix, lysosome, nucleus, inner mitochondrial membrane, outer mitochondrial membrane, mitochondrial intermembrane space

1. Glycolysis cytosol

2. citric acid cycle Mitochondrial Matrix

3. conversion of pyruvate to activated acetyl groups

4. oxidation of fatty acids to acetyl CoA

5. glycogen breakdown

6. release of fatty acids from triacylglycerols

7. oxidative phosphorylation