MCQ Collection
MDCAT Biology MCQs
Practice MDCAT Biology questions with answers and explanations.
Choose an option to check your answer.
A.
Vitamins, minerals, water, and salts
B.
Atoms, ions, tissues, and organs
C.
Sugars, acids, bases, and gases
D.
Carbohydrates, lipids, proteins, and nucleic acids
Show Answer
Correct Answer: D. Carbohydrates, lipids, proteins, and nucleic acids
Explanation:
The four major macromolecule groups perform structural, energetic, catalytic, and informational roles.
Choose an option to check your answer.
A.
Membrane-bound nucleus
B.
Presence of DNA
C.
Presence of ribosomes
D.
Presence of a plasma membrane
Show Answer
Correct Answer: A. Membrane-bound nucleus
Explanation:
Both cell types have DNA, ribosomes, and membranes.
Choose an option to check your answer.
A.
Carbohydrates, lipids, proteins, and nucleic acids
B.
Vitamins, minerals, water, and salts
C.
Atoms, ions, tissues, and organs
D.
Sugars, acids, bases, and gases
Show Answer
Correct Answer: A. Carbohydrates, lipids, proteins, and nucleic acids
Explanation:
The four major macromolecule groups perform structural, energetic, catalytic, and informational roles.
Choose an option to check your answer.
A.
Presence of DNA
B.
Membrane-bound nucleus
C.
Presence of ribosomes
D.
Presence of a plasma membrane
Show Answer
Correct Answer: B. Membrane-bound nucleus
Explanation:
Both cell types have DNA, ribosomes, and membranes.
Choose an option to check your answer.
A.
Vitamins, minerals, water, and salts
B.
Carbohydrates, lipids, proteins, and nucleic acids
C.
Atoms, ions, tissues, and organs
D.
Sugars, acids, bases, and gases
Show Answer
Correct Answer: B. Carbohydrates, lipids, proteins, and nucleic acids
Explanation:
The four major macromolecule groups perform structural, energetic, catalytic, and informational roles.
Choose an option to check your answer.
A.
Presence of DNA
B.
Presence of ribosomes
C.
Membrane-bound nucleus
D.
Presence of a plasma membrane
Show Answer
Correct Answer: C. Membrane-bound nucleus
Explanation:
Both cell types have DNA, ribosomes, and membranes.
Choose an option to check your answer.
A.
A fully formed organ
B.
A type of lipid only
C.
A small building block that can join to form a polymer
D.
A mineral ion
Show Answer
Correct Answer: C. A small building block that can join to form a polymer
Explanation:
Monomers link through covalent bonds.
Choose an option to check your answer.
A.
A membrane-bound nucleus
B.
A protein-making organelle
C.
A bacterial vacuole
D.
Region containing the chromosome in a prokaryotic cell
Show Answer
Correct Answer: D. Region containing the chromosome in a prokaryotic cell
Explanation:
The nucleoid is not enclosed by a nuclear membrane.
Choose an option to check your answer.
A.
A fully formed organ
B.
A type of lipid only
C.
A mineral ion
D.
A small building block that can join to form a polymer
Show Answer
Correct Answer: D. A small building block that can join to form a polymer
Explanation:
Monomers link through covalent bonds.
Choose an option to check your answer.
A.
Region containing the chromosome in a prokaryotic cell
B.
A membrane-bound nucleus
C.
A protein-making organelle
D.
A bacterial vacuole
Show Answer
Correct Answer: A. Region containing the chromosome in a prokaryotic cell
Explanation:
The nucleoid is not enclosed by a nuclear membrane.
Choose an option to check your answer.
A.
A small building block that can join to form a polymer
B.
A fully formed organ
C.
A type of lipid only
D.
A mineral ion
Show Answer
Correct Answer: A. A small building block that can join to form a polymer
Explanation:
Monomers link through covalent bonds.
Choose an option to check your answer.
A.
A membrane-bound nucleus
B.
Region containing the chromosome in a prokaryotic cell
C.
A protein-making organelle
D.
A bacterial vacuole
Show Answer
Correct Answer: B. Region containing the chromosome in a prokaryotic cell
Explanation:
The nucleoid is not enclosed by a nuclear membrane.
