The Citric Acid Cycle Is a Critical Sequence of Reactions

question 61

Multiple Choice

The citric acid cycle is a critical sequence of reactions for energy production, which take place in the matrix of the mitochondria.The reaction cycle requires materials from the cytosol to be converted into acetyl CoA, which represents the starting point of a new cycle.Which of the following statements about acetyl CoA is TRUE?

• A)Amino acids can be converted into acetyl CoA.
• B)Pyruvate is converted into acetyl CoA in the cytosol.
• C)Triacylglycerol molecules are transported into the mitochondrial matrix and cleaved by lipases to produce acetyl CoA.
• D)Oxaloacetate is converted directly into acetyl CoA to feed the citric acid cycle.

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Definitions:

Conservation

A cognitive principle in child development discovered by Piaget, indicating the understanding that quantity doesn't change despite changes in the shape or appearance of objects.

Piagetian Principle

A concept from Jean Piaget's theory, indicating that cognitive development occurs through a series of stages, characterized by distinct ways of thinking and understanding the world.

Clay

A natural, earthen material composed of fine-grained minerals, used in arts and crafts for sculpting and pottery.

Conservation

In cognitive development, the understanding that certain properties of objects can remain the same despite changes in their form or appearance.