Bio 101 Exam 1 Study Guide | 60 Questions & Correct
Answers with Detailed Rationales | New 2026–2027
Update | Complete Study Guide
1) All organisms belonging to the kingdom Plantae
A. Photosynthetic
B. Heterotrophic
C. Parasitic
D. Decomposers
Correct Answer: A
Expert Rationale: Kingdom Plantae organisms are primarily photosynthetic.
2) The complex of proteins and DNA in a nondividing cell is called
A. chromatin
B. chromosome
C. nucleolus
D. centromere
Correct Answer: A
Expert Rationale: Chromatin is the protein-DNA complex in nondividing cells.
3) The nucleoid region of a prokaryotic cell
A. contains the cell's DNA
B. contains ribosomes
C. contains a nucleus
D. contains mitochondria
Correct Answer: A
Expert Rationale: The nucleoid region holds the prokaryotic DNA.
4) The ultimate source of energy flowing into nearly all ecosystems is
A. sunlight
B. ATP
C. heat
, D. glucose
Correct Answer: A
Expert Rationale: Sunlight is the ultimate energy source for most ecosystems.
5) How do cells capture the energy released by cellular respiration?
A. they produce ATP
B. they produce glucose
C. they produce oxygen
D. they produce sunlight
Correct Answer: A
Expert Rationale: Cells capture energy from respiration by producing ATP.
6) The end products of glycolysis include
A. NADH
B. CO2
C. glucose
D. oxygen
Correct Answer: A
Expert Rationale: Glycolysis produces NADH, ATP, and pyruvate.
7) Which of the following structures is exclusively associated with prokaryotic
cells?
A. Nucleoid
B. Nucleus
C. Mitochondria
D. Golgi apparatus
Correct Answer: A
Expert Rationale: The nucleoid is found only in prokaryotic cells.
8) A person with AB blood illustrates the principle of
A. codominance
B. incomplete dominance
C. dominance
D. epistasis
Correct Answer: A
Expert Rationale: AB blood shows codominance of A and B alleles.
Answers with Detailed Rationales | New 2026–2027
Update | Complete Study Guide
1) All organisms belonging to the kingdom Plantae
A. Photosynthetic
B. Heterotrophic
C. Parasitic
D. Decomposers
Correct Answer: A
Expert Rationale: Kingdom Plantae organisms are primarily photosynthetic.
2) The complex of proteins and DNA in a nondividing cell is called
A. chromatin
B. chromosome
C. nucleolus
D. centromere
Correct Answer: A
Expert Rationale: Chromatin is the protein-DNA complex in nondividing cells.
3) The nucleoid region of a prokaryotic cell
A. contains the cell's DNA
B. contains ribosomes
C. contains a nucleus
D. contains mitochondria
Correct Answer: A
Expert Rationale: The nucleoid region holds the prokaryotic DNA.
4) The ultimate source of energy flowing into nearly all ecosystems is
A. sunlight
B. ATP
C. heat
, D. glucose
Correct Answer: A
Expert Rationale: Sunlight is the ultimate energy source for most ecosystems.
5) How do cells capture the energy released by cellular respiration?
A. they produce ATP
B. they produce glucose
C. they produce oxygen
D. they produce sunlight
Correct Answer: A
Expert Rationale: Cells capture energy from respiration by producing ATP.
6) The end products of glycolysis include
A. NADH
B. CO2
C. glucose
D. oxygen
Correct Answer: A
Expert Rationale: Glycolysis produces NADH, ATP, and pyruvate.
7) Which of the following structures is exclusively associated with prokaryotic
cells?
A. Nucleoid
B. Nucleus
C. Mitochondria
D. Golgi apparatus
Correct Answer: A
Expert Rationale: The nucleoid is found only in prokaryotic cells.
8) A person with AB blood illustrates the principle of
A. codominance
B. incomplete dominance
C. dominance
D. epistasis
Correct Answer: A
Expert Rationale: AB blood shows codominance of A and B alleles.
