Subject: Bio - Chemistry

#225

The cellular organelles called “suicide bags” are

A) Lysosomes

B) Ribosomes

C) Nucleolus

D) Golgi’s bodies

Answer:   A

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#226

From the biological viewpoint, solutions can be grouped into

A) Isotonic solution

B) Hypotonic solutions

C) Hypertonic solution

D) All of these

Answer:   D

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#227

Bulk transport across cell membrane is accomplished by

A) Phagocytosis

B) Pinocytosis

C) Extrusion

D) All of these

Answer:   D

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#228

The ability of the cell membrane to act as a selective barrier depends upon

A) The lipid composition of the membrane

B) The pores which allows small molecules

C) The special mediated transport systems

D) All of these

Answer:   D

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#229

Carrier protein can

A) Transport only one substance

B) Transport more than one substance

C) Exchange one substance to another

D) Perform all of these functions

Answer:   D

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#230

A lipid bilayer is permeable to

A) Urea

B) Fructose

C) Glucose

D) Potassium

Answer:   A

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#231

The Golgi complex

A) Synthesizes proteins

B) Produces ATP

C) Provides a pathway for transporting chemicals

D) Forms glycoproteins

Answer:   D

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#232

The following points about microfilaments are true except

A) They form cytoskeleton with microtubules

B) They provide support and shape

C) They form intracellular conducting channels

D) They are involved in muscle cell contraction

Answer:   C

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