Glucose, Labeled with ¹⁴C in Different Carbon Atoms, Is Added

question 49

Multiple Choice

Glucose, labeled with ¹⁴C in different carbon atoms, is added to a crude extract of a tissue rich in the enzymes of the pentose phosphate pathway. The most rapid production of ¹⁴CO₂ will occur when the glucose is labeled in:

• A) C-1.
• B) C-3.
• C) C-4.
• D) C-5.
• E) C-6.

---

Definitions:

Preoperational

The stage in Piaget's theory of cognitive development where children from about 2 to 7 years old exhibit egocentric thinking and struggle with understanding the viewpoint of others.

Negative Outcomes

refers to the undesirable or harmful results of actions or conditions, often contrasted with positive results or benefits.

Adolescents

A developmental stage that describes young people transitioning from childhood to adulthood, typically characterized by significant physical, psychological, and social changes.

Formal Operational Period

In Piaget’s theory, the period from about age twelve on, in which a child can think abstractly and consider hypothetical possibilities.