BIOLOGY 151 Lecture Notes - Lecture 27: Transmembrane Protein, Atp Synthase, Starch

24 views3 pages

viridiandinosaur368

17 Dec 2016

School

Department

Course

Professor

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

Glucose + nad+ + adp + p 2 pyruvate + 2nadh + 2 atp. You start off with glucose, nad+, and adp. You phosphorylate the glucose from an atp (-1 atp) and form glucose 6-phosphate. You phosphorylate glucose 6-phosphate (-1 atp) to form fructose 6-phosphate. That fructose 6-phosphate is broken down into two 3-phosphate groups called pyruvate. Nad+ is reduced to two nadh and 4 atp were essentially formed but two were used to phosphorylate the glucose yielding 2 atp. Pyruvate broken down into co2 and an acetyl group. Acetyl group latches onto coenzyme a which takes it to citric acid cycle. This is catalyzed by pyruvate dehydrogenase complex. 2 pyruvate 2co2 + 2 nadh + 2 acetyl-coa. You have 2 carbon acetyl-coa + 4 carbon oxaloacetate which produced 6 carbon. 6 carbon citrate is oxidized back to oxaloacetate. At end of citric acid cycle (x2), you end up with 6 nadh, 2 atp, and 2 fadh2.

Related Questions

The complete conversion of a molecule glucose to six molecules of carbon dioxide via glycolysis and the Krebs cycle requires 19 reactions. Put the reactions that are given below in the proper order, beginning with the phosphorylation of glucose to form glucose-6-phosphate and ending with the oxidation of malate to form oxaloacetic acid.

1) 1,3-bisphosphoglycerate + ADP --> 3-phosphoglycerate + ATP
2) fumarate + H₂O --> malate
3) isocitrate + NAD⁺ --> alpha-ketoglutarate + NADH + H⁺ + CO₂
4) phosphoenol pyruvate + ADP --> pyruvate + ATP
5) Succinyl-CoA + GDP + P_i --> succinate + GTP + CoASH
6) glyceraldehyde 3-phosphate + NAD⁺ + P_i --> 1,3-bisphosphoglycerate + NADH + H⁺

Thank you for the help!

tealleopard702

Which of the following is not a net product of the citric acid cycle for each molecule of pyruvate generated in glycolysis?

Select one:

a. 1 ATP (GTP)

b. 1 acetyl coA

c. 3 NADH

d. 1 FADH2

Question 2

Which of the following is NOT an end product for an acetyl group that enters the citric acid cycle?

Select one:

a. ATP

b. NADH

c. FADH2

d. oxaloacetate

Question 3

Once they have been processed through the citric acid cycle, the acetyl-CoA molecules from a single glucose molecule produce:

Select one:

a. 2 ATP, 6 NADH, 4 CO₂.

b. 6 NADH, 6 GTP.

c. 6 FADH₂, 2 ATP, 6 CO₂.

d. 6 GTP, 6 FADH₂.

e. 4 CO₂, 6 FADH₂, 2 ATP.

Question 4

The products of the citric acid cycle breaking down 2 acetyl-CoA include 2 ATP (converted from GTP), 6 NADH and 2 FADH2.

Select one:

True

False

1. Choose the TWO correct statements describing the citrate cycle.

	ATP is an indirect product of the citric acid cycle
	Acetyl CoA can increase the pool of citric acid cycle intermediates
	Fatty acids can increase the pool of citric acid cycle intermediates
	ADP inhibits Î±-ketoglutarate dehydrogenase
	The pool of mitochondrial oxaloacetate can be increased by pyruvate
	All enzymes of the citric acid cycle are found soluble and free in the mitochondrial matrix

2.Which molecule in the net reaction of the citrate cycle contributes to the inhibition of pyruvate dehydrogenase?

	NADH
	H⁺
	H₂O
	FAD

3. How would a high NADH to NAD⁺ ratio be expected to affect the pyruvate dehydrogenase reaction?

	The E1 subunit is phosphorylated by pyruvate dehydrogenase kinase, and the catalytic activity of pyruvate dehydrogenase decreases.
	The last step of the pyruvate dehydrogenase reaction is blocked, resulting in a decrease in activity.
	The pyruvate dehydrogenase phosphatase-1 enzyme would increase, resulting in pyruvate dehydrogenase activation at an accelerated rate.
	The pyruvate dehydrogenase kinase enzyme activity would increase, resulting in an increase in pyruvate dehydrogenase activity.

BIOLOGY 151 Lecture Notes - Lecture 27: Transmembrane Protein, Atp Synthase, Starch

Document Summary

Get access

Related Documents

BIOLOGY 151 Lecture Notes - Lecture 17: Citric Acid Cycle, Hydrolysis, Glycolysis

Related Questions