Which of the Following Statements About Cytochrome C Is TRUE

question 54

Multiple Choice

Which of the following statements about cytochrome c is TRUE?

• A)Cytochrome c shuttles electrons between the NADH dehydrogenase complex and cytochrome c reductase complex.
• B)When cytochrome c becomes reduced, two cysteines (sulfur-containing amino acids) become covalently bound to a heme group.
• C)The pair of electrons accepted by cytochrome c are added to the porphyrin ring of the bound heme group.
• D)Cytochrome c is the last protein in the electron-transport chain, passing its electrons directly to molecular oxygen, a process that reduces O₂ to H₂O.

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Definitions:

Social Readjustment Rating Scale

A scale measuring the stress level of individuals through the tally of significant life changes they have experienced.

Major Life Event

A significant occurrence or change in an individual's life, such as marriage, the birth of a child, or a career change, that can have a substantial psychological impact.

Social Readjustment Rating Scale

A psychological tool that measures the stress level of individuals by assigning numerical values to life events, used to predict the likelihood of illness.

Measure Stress

The process of quantifying an individual's level of stress, often using psychological scales or physiological indicators.