In the initial step of the Q cycle, the electrons of QH2 (or ubiquinol) are transferredto:OA) cytochrome c₁ and cytochrome b.B) cytochrome c₁ and Q (or ubiquinone).cytochrome C₁ and Q (or semiubiquinol).OD) cytochrome b and Q.

The complex III of the electron transport chain ( Q-cytochrome c oxidoreductase) consists of three…

Answered: In the initial step of the Q cycle, the…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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If you examine OX/PHOS in the organism that has the c16 ATP Synthase complex from Q3, how many ATPs will be generated from one Succinate?# of ATPs:
When making bread with common yeast, the reaction starts as an aerobic process and then becomes an anaerobic process after the oxygen is spent. A baker has created a new strain of yeast which contains no cytochrome c gene and, thus, no cytochrome c protein. This will affect what the yeast strain can do to obtain energy. Use the passage to answer the question. Since the air bubbles in bread are generated by yeast, how will the spaces in this bread compare to those in a loaf made using normal yeast? A. more bubbles B. differently-shaped bubbles C. smaller bubbles D. bubbles more on the interior of the loaf
which enzyme was used for each reaction?
If both complex I and complex II send electrons to cytochrome c, how many cytochrome c molecules will it take to deliver those electrons to complex IV? Assume that complex I received one NADH and complex I catalyzed oxidation of one succinate.
In human cells, where does fatty acid elongation (that is, beyond the C16:0 normally produced by fatty acid synthase) occur? a)On the outer (cytosolic) face of the outer mitochondrial membrane b)On the outer (cytosolic) face of the endoplasmic reticulum membrane c)Free in the cytosol d)In the mitochondrial matrix
Cyanide is a highly toxic molecule. It bonds to a cytochrome in the electron transport chain located in the mitochondria, rendering the electron transport chain useless. The ingestion of cyanide, therefore, results in death due to which of the following? a) Starvation, due to an inability to create glucose. b) Build up of lactic acid. c) Inability to take in oxygen through the lungs. d) Cellular death from lack of energy.
Pls help
Inhibitors of electron transport have been used to determine the order of electron carriers. What would be the expected redox states of cytochrome a, bi, and c when the following inhibitors are added to succinate-driven respiring mitochondria? (i) myxothiazol (ii) antimycin A (iii) rotenone
11:39 11) Which of these statements is true of fermentation? a) It converts lactic acid into acetyl CoA b) It requires oxygen c) It requires high temperatures d) It happens when cells don't have a final electron acceptor e) All of these are true A
How does the switch from the two-electron carrier ubiquinol to the one-electron carrier cytochrome c take place?
What kind of reaction does each of these enzymes catalyze?(a) A ligase(b) A transmethylase(c) A reductase
When pure reduced cytochrome c is added to carefully prepared mito- chondria along with ADP, P, antimycin A, and oxygen, the cytochrome c becomes oxidized, and ATP is formed, with a P/O ratio approaching 1. Why was antimycin A added, and what does this experiment tell you about the location of coupling sites?

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In the initial step of the Q cycle, the electrons of QH2 (or ubiquinol) are transferred to: OA) cytochrome c₁ and cytochrome b. B) cytochrome c₁ and Q (or ubiquinone). OC) cytochrome c₁ and Q (or semiubiquinol). OD) cytochrome band Q.