Identify the subatomic particles found within the

ATI RN

ATI RN Test Bank

Identify the subatomic particles found within the nucleus of an atom.

A. protons and electron B. electrons and neutrons C. positrons and electrons D. protons and neutrons

Correct Answer: D

Rationale: The nucleus contains protons (positive) and neutrons (neutral); electrons orbit outside.

A solution with a pH of 11 would be

A. acidic B. basic C. neutral D.

Correct Answer: B

Rationale: pH > 7 indicates a basic solution (high OH- concentration).

Identify the monomer of carbohydrates.

A. Amino acids B. Fatty acids and glycerol C. Monosaccharides D. Nucleotides

Correct Answer: C

Rationale: Monosaccharides (e.g., glucose) are the building blocks of carbohydrates.

Identify the main component of cell membranes.

A. cholesterol B. fatty acids C. phospholipids D. polysaccharides

Correct Answer: C

Rationale: Phospholipids form the bilayer structure of cell membranes.

A reaction that joins smaller molecules or elements to form a larger, more complex product is a reaction.

A. degradation B. replacement C. synthesis D. decomposition

Correct Answer: C

Rationale: Synthesis reactions build larger molecules from smaller units.

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