Biology: Cell Environments and Osmosis

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Questions and Answers

What happens to an erythrocyte placed in a hypertonic solution?

It would remain unchanged
It would crenate, becoming distorted in shape (correct)
It would swell and burst
It would shrink slightly

What is the function of membrane proteins?

Act as enzymes and receptor sites; function for chemical transport, intercellular communication, cell-to-cell recognition, and attachment to the cytoskeleton and extracellular matrix (correct)
Maintain cell shape
Prevent osmosis
Provide energy for the cell

What is the role of B-lymphocytes in the immune response?

Secrete antibodies for humoral immune response (correct)
Regulate T-lymphocytes
Destroy antigens directly
Produce cytokines for inflammation

What happens to secretory proteins in the process of vesicle formation and transport?

<p>They are assembled by ribosomes on the rough ER and then pass through channels to the Golgi body before being encapsulated in vesicles (A)</p> Signup and view all the answers