Odysseyware Exam Questions and Answers
Odysseyware Exam Questions
& Answers
Biology • Civics • Chemistry • Earth Science • Nursing
Comprehensive MCQ Study Guide | Answer Key Included | Academic Year 2024–25
■ Subjects Covered Biology, Civics, Chemistry, Earth Science, Nursing
■ Total Questions 42 Multiple-Choice Questions
■ Format 4 options per question · Correct answer highlighted · Explanation provided
■ Purpose Exam preparation & self-assessment for Odysseyware students
© 2024 Odysseyware Study Companion. For educational use only.
SECTION 1 OF 5
■ Biology
Q1.
What is the powerhouse of the cell?
A) Nucleus
B) Ribosome
C) Mitochondria
D) Golgi Apparatus
✓ Answer: C)
Mitochondria
Mitochondria produce ATP through cellular respiration, supplying energy to the cell.
Q2.
Which of the following is NOT a function of the cell membrane?
A) Selective permeability
B) Cell communication
C) Protein synthesis
D) Transport
✓ Answer: C)
Protein
synthesis
Protein synthesis occurs on ribosomes in the cytoplasm or rough ER, not the
membrane.
Q3.
During which phase of mitosis do chromosomes align at the cell's equator?
A) Prophase
B) Metaphase
C) Anaphase
D) Telophase
✓ Answer: B)
Metaphase
In metaphase, chromosomes align along the metaphase plate (cell's equatorial plane).
Q4.
What is the role of RNA polymerase in transcription?
A) Translates mRNA to protein
B) Unwinds the DNA double helix and synthesizes mRNA
C) Adds amino acids to a polypeptide chain
D) Replicates DNA before cell division
✓ Answer: B)
Unwinds the
DNA double
helix and
synthesizes
mRNA
RNA polymerase reads the DNA template strand and builds a complementary mRNA
strand.
Q5.
Which blood type is considered the universal donor?
A) Type A
B) Type B
C) Type AB
D) Type O negative
✓ Answer: D)
Type O negative
Type O negative lacks A, B, and Rh antigens, so it can be transfused to most recipients.
Q6.
The process by which plants convert sunlight into glucose is called:
A) Cellular respiration
B) Fermentation
C) Photosynthesis
D) Transpiration
✓ Answer: C)
Photosynthesis
Photosynthesis: 6CO■ + 6H■O + light → C■H■■O■ + 6O■, occurring in chloroplasts.
Q7.
Mendel's Law of Segregation states that:
A) Traits are blended in offspring
B) Alleles separate during gamete formation
C) Dominant alleles always mask recessive ones
D) Genes on the same chromosome assort independently
✓ Answer: B)
Alleles separate
during gamete
formation
Each gamete receives only one allele for each trait during meiosis.
Q8.
Which organelle contains digestive enzymes that break down waste materials?
A) Vacuole
B) Peroxisome
C) Lysosome
D) Endosome
