The Conversion of Glucose-6-Phosphate to Glucose-1-Phosphate Has a ΔG´° of

question 29

Multiple Choice

The conversion of glucose-6-phosphate to glucose-1-phosphate has a ΔG´° of + 8.4 kJ/mol. How can a reaction such as this proceed in a cell?

• A) it must be coupled to ATP hydrolysis
• B) the product must be rapidly used in a subsequent step of the pathway
• C) it can only occur with the help of an enzyme
• D) this reaction can not proceed and must go in the reverse manner
• E) both B and C are correct

---

Definitions:

Perceptual Constancy

The psychological feature that enables individuals to perceive objects as unchanged despite variations in the viewing conditions like lighting, angle, or distance.

Binocular Disparity

The difference in image location of an object seen by the left and right eyes, resulting from the eyes’ horizontal separation; the basis of stereopsis or depth perception.

Atmospheric Perspective

A technique in art and visual perception, creating the illusion of depth by portraying distant objects as paler, less detailed, and usually bluer than nearer objects.

Shape Constancy

The perceptual phenomenon by which we perceive the shape of an object as constant even when its shape changes on the retina due to changes in viewing angle.