Which of the numbered arrows in the figure points toward a "high-energy" phosphoanhydride bond? NH2 -P-0-CH2 0-P-0-P 3 Но OH 0 1 0 2 0 3 O 4 O 5

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
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**Question 12**

Which of the numbered arrows in the figure points toward a "high-energy" phosphoanhydride bond?

[Diagram Explanation]
The diagram shows a nucleotide structure with the following features:
- A triphosphate group, with arrows numbered 4 and 5 pointing to the bonds between phosphate groups.
- A ribose sugar, with arrow 3 pointing at the carbon-oxygen bond.
- A nitrogenous base, with arrows 1 and 2 pointing at bonds within the base.

**Options:**
- ○ 1
- ○ 2
- ○ 3
- ○ 4
- ○ 5

**Question 13**

Which reaction(s) of the glycolytic pathway may operate in either direction (reversible reaction)?

1. Formation of fructose 1,6-bisphosphate
2. Formation of fructose-6-phosphate
3. Formation of 2-phosphoglycerate
4. Formation of pyruvate

- ○ 2 and 4
Transcribed Image Text:**Question 12** Which of the numbered arrows in the figure points toward a "high-energy" phosphoanhydride bond? [Diagram Explanation] The diagram shows a nucleotide structure with the following features: - A triphosphate group, with arrows numbered 4 and 5 pointing to the bonds between phosphate groups. - A ribose sugar, with arrow 3 pointing at the carbon-oxygen bond. - A nitrogenous base, with arrows 1 and 2 pointing at bonds within the base. **Options:** - ○ 1 - ○ 2 - ○ 3 - ○ 4 - ○ 5 **Question 13** Which reaction(s) of the glycolytic pathway may operate in either direction (reversible reaction)? 1. Formation of fructose 1,6-bisphosphate 2. Formation of fructose-6-phosphate 3. Formation of 2-phosphoglycerate 4. Formation of pyruvate - ○ 2 and 4
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