Erythroblasts Isolated from a Bone Marrow Biopsy Sample of a Patient

question 26

Multiple Choice

Erythroblasts isolated from a bone marrow biopsy sample of a patient with neonatal jaundice are incubated in a medium containing radiolabeled glucose.  The cells are unable to generate NADPH from glucose metabolism but are able to convert fructose-6-phosphate to ribose-5-phosphate, which is required for nucleic acid synthesis.  Which of the following enzymes is essential for the latter conversion?

• A)Aconitase
• B)Enolase
• C)Glucose-6-phosphate dehydrogenase
• D)Glutathione reductase
• E)Transketolase

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Definitions:

Weight-Loss Diets

Eating plans often designed to reduce calorie intake, resulting in body weight loss.

Calorie Maintenance

The balance of calories consumed through eating and drinking with calories burned through physical activity, which is crucial for maintaining current body weight.

Dieting

The practice of eating food in a regulated manner to achieve or maintain a specific weight or health goal.

Body Weight

A measurement of an individual's mass, often used as an indicator of health in relation to height.