DNA acts as a template to make mRNA during

ATI RN

ATI RN Test Bank

DNA acts as a template to make mRNA during:

A. transcription B. replication C. translation D. apoptosis

Correct Answer: A

Rationale: Transcription uses DNA as a template to synthesize mRNA.

K is the chemical symbol for:

A. calcium B. phosphorous C. potassium D. sodium

Correct Answer: C

Rationale: K stands for potassium, another alkali metal essential in biological systems.

Atoms can bond with each other to form a chemical 'unit' called a(an)

A. molecule B. electron C. attraction D. inorganic matter

Correct Answer: A

Rationale: A molecule is a group of bonded atoms forming a distinct chemical unit.

What type of substances will dissolve in water?

A. Non-polar molecules only B. Polar molecules only C. Non-polar molecules and ions D. Polar molecules and ions

Correct Answer: D

Rationale: Water dissolves polar molecules (e.g., sugars) and ionic compounds (e.g., NaCl) due to its polarity.

A polymer is a large molecule composed of smaller subunits called:

A. buffers B. macromolecules C. monomers D. monosaccharides

Correct Answer: C

Rationale: Polymers are built from repeating monomers (e.g., amino acids in proteins).

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