GRE Subject Test: Biochemistry, Cell, and Molecular Biology : Help with Other Membrane Functions

Study concepts, example questions & explanations for GRE Subject Test: Biochemistry, Cell, and Molecular Biology

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All GRE Subject Test: Biochemistry, Cell, and Molecular Biology Resources

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Example Questions

Example Question #1 : Help With Other Membrane Functions

Which of the following is not a method used to transport substances into a cell?

Possible Answers:

Phagocytosis

Exocytosis

Pinocytosis

Receptor-mediated endocytosis

Correct answer:

Exocytosis

Explanation:

Endocytosis is the process by which substances from the external environment are encapsulated in vesicles and brought into the cell. Receptor-mediated endocytosis uses membrane receptors to help localize the formation of the trasnport vesicle. Pinocytosis uses vesicles to transport fluids into the cell, while phagocytosis uses vesicles to bring pathogenic debris into the cell for digestion.

Exocytosis, in contrast, is the expulsion of substances from the cell via a transport vesicle.

Example Question #21 : Cell Biology

Every cell membrane has protein channels that allow certain molecules to pass through.

Which acronym is used to explain the concentration gradient of sodium (Na+) and potassium (K+) inside and outside the cell membrane?

Possible Answers:

SOAP

KADE

I'm A People Person

HIKIN'

TIRE

Correct answer:

HIKIN'

Explanation:

"HIKIN'" represents the statements "there is a HIgh K concentration INside the cell."

"KADE" is used to remember the vitamins that are fat soluble: vitamins K, A, D, and E. "I'm A People Person" refers to the four-point physical assessment of a disease: Inspection, Auscultation, Percussion, Palpation. SOAP is the acronym for Subjective, Objective, Assessment, and Plan—a way to organize patient examination information. TIRE is an mnemonic for remembering the four abdominal muscles: transversus abdominis, internal abdominal oblique, rectus abdominis, external abdominal oblique.

All GRE Subject Test: Biochemistry, Cell, and Molecular Biology Resources

1 Diagnostic Test 201 Practice Tests Question of the Day Flashcards Learn by Concept
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