Which Mechanism Best Describes the Process by Which Nutrients Are

question 3

Multiple Choice

Which mechanism best describes the process by which nutrients are taken up selectively at the apical surface of the epithelial cells that line the gut and released from their basal and lateral surfaces?

• A)Proteins are tethered to the cell cortex.
• B)Proteins are tethered to the extracellular matrix.
• C)Proteins are tethered to the proteins on the surface of another cell.
• D)Protein movement is limited by the presence of a diffusion barrier.

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Definitions:

Ethics

The study of a way of life and its values, including a system of general moral principles and a conception of morality and its foundations. Sometimes the term simply refers to the study of moral principles.

Duty-Defined Morality

The view that moral right and wrong are determined first of all by a conception of a person’s duties and obligations.

Utilitarianism

An ethical theory that proposes that the best action is the one that maximizes utility, usually defined as that which produces the greatest well-being of the greatest number of people.

Virtue Ethics

The view that the central feature in the evaluation of people and their actions should be the character of the agent. Aristotle’s ethics are often described as a form of virtue ethics.