Biochemistry 3381A Study Guide - Quiz Guide: Oxidative Phosphorylation, Acetyl-Coa, Inner Membrane

6 views4 pages

spectral

27 May 2020

School

Department

Course

Professor

For unlimited access to Study Guides, a Grade+ subscription is required.

Document Summary

Produces atp by oxidative phosphorylation (chemiosmosis + electron transport: chloroplast. Both have extensive internal membrane systems which contain sets of membrane protein complexes that work together to produce most of cell"s atp. Inner membrane of large mitochondria contains protein called respiratory chain which is the electron-transport chain from. Pyruvate fatty acids glucose) and (derived are transported across the inner mitochondrial membrane to the matrix where they are converted into acetyl coa by enzymes located in the matrix. The acetyl groups in acetyl coa are oxidized in the matrix via the citric acid cycle. Oxidation produces co2 which diffuses out of the membrane. Citric acid released electrons which are carried by. Nadh transports electrons from the matrix to the electron transport chain in the inner mitochondrial membrane. In the process of oxidative phosphorylation, these electrons pass along the electron-transport chain from fats) cycle. In presence of o2 and occurs in mitochondria (matrix)

Related Questions

Oxidative phosphorylation is the final stage of cellular respiration and the main pathway of aerobic energy generation from glucose. Which of the following statements is NOT true?

a. NADH and FADH2 are used as âinputâ into the electron transport chain

b. The electron transport chain produces a proton gradient across the inner mitochondrial membrane

c. FADH2 stores less energy than NADH

d. The electron transport chain is made up of several membrane protein complexes

e. ATP synthesis by chemiosmosis requires about 30 protons per ATP molecule

1.) Certain complexes of the mitochondrial electron transport chain pump protons. Which of the following BEST describes the movement of protons in this situation?

a.) across the outer mitochondrial membrane, from the cytoplasm to the intermembrane space

b.) across the outer mitochondrial membrane, from the intermembrane space to the cytoplasm

c.) across the inner mitochondrial membrane, from the intermembrane space to the matrix

d.) across the inner mitochondrial membrane, from the matrix to the inter membrane space

2.) Which regulatory mechanism is activated when the overall energy availability of a cell is high?

a.) Citrate inhibits phosphofructokinase-1.

b.) ADP up-regulates phosphofructokinase-1.

c.) ATP inhibits phosphofructokinase-1.

d.) AMP up-regulates phosphofructokinase-1.

3.) Electron carriers are oxidized during which of the following reactions?

a.) glycolysis

b.) citric acid cycle

c.) electron transport chain

d.) the conversion of pyruvate to acetyl coA

e.) all of the above

purpleswan410

The electron transport chain (ETC), or respiratory chain, is linkedto proton movement and ATP synthesis. Select the STATEMENTS thatACCURATELY describe the electron transport chain.(True/False)
a)Electron transfer in the ETC is coupled to proton transfer formthe matrix to the intermembrane space.
b)Electrons generated by he citric acid cycle in the mitochondrialmatrix enter the ETC.
c)The outer membrane of mitochondria is readily permeable to smallmolecules and hydrogen ions.
d)Electron carriers in the mitochondrial matrix include ubiquinone(coenzyme Q), FMN, and cytochrome c.
e)Prosthetic groups, such as iron-sulfer centers, are directlyinvolved with electron transfer.
f)Electron carriers are organized into four complexes of proteinsand prosthetic groups.
g)The reactions of the ETC take place in the outer membrane ofmitochondria.

beigekoala314

Biochemistry 3381A Study Guide - Quiz Guide: Oxidative Phosphorylation, Acetyl-Coa, Inner Membrane

Document Summary

Get access

Related Documents

Biochemistry 3381A Lecture Notes - Lecture 16: Acetyl-Coa, Cell Signaling, Mitogen

Biochemistry 3381A Lecture Notes - Lecture 8: Mitochondrial Biogenesis, Intermembrane Space, 3D Reconstruction

Biochemistry 3381A Study Guide - Quiz Guide: Atp Synthase, Electrochemical Gradient, Mechanistic Organic Photochemistry

Related Questions