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.

---

Definitions:

Contactor

An electrically controlled switch used for switching an electrical power circuit, commonly used in motor control applications.

Start Pushbutton

A button that, when pressed, initiates the operation of a machine or device, commonly found in motor control circuits to start motors.

Control Circuit

An electrical circuit designed to control the operation of devices in a system, often through the use of relays, switches, and timers.

Momentary

Describes a brief, transient action, especially in the context of switches or signals, where the effect lasts only as long as the actuating force is applied.