Which of the Following Is Responsible, in Part, for Keeping

question 193

Multiple Choice

Which of the following is responsible, in part, for keeping the cytoplasm of red blood cells isotonic with the blood plasma, and thereby preventing either lysis or shrinking of the cells?

• A)facilitated diffusion
• B)sodium channels
• C)the sodium/potassium pump
• D)osmosis

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Definitions:

Mesonephros

An embryonic kidney that serves as an interim kidney while the final kidney (metanephros) is forming in vertebrates.

Neural Tube

Tube formed from the neuroectoderm by the closure of the neural groove; develops into the spinal cord and brain.

Neural Plate

Region of the dorsal surface of the embryo that is transformed into the neural tube and neural crest.

Primitive Streak

An early structure that forms in the developing embryo, crucial for the process of gastrulation and establishing the body plan of the organism.