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Biology
What term describes a symbiotic relationship where one organism benefits while the other organism is neither helped nor harmed?
A
Parasitism
B
Mutualism
C
Commensalism
D
Predation
Correct Answer
C
Biology
Which membrane-bound cell organelle contains digestive enzymes used to break down waste materials, worn-out cell parts, and engulfed pathogens?
A
Lysosome
B
Peroxisome
C
Golgi apparatus
D
Vacuole
Correct Answer
A
Biology
Which part of the human brain is primarily responsible for regulating posture, balance, and coordinating voluntary muscle movements?
A
Cerebrum
B
Medulla oblongata
C
Cerebellum
D
Hypothalamus
Correct Answer
C
Biology
What type of chemical bond holds the complementary base pairs (e.g., Adenine and Thymine) together in a DNA double helix?
A
Covalent bond
B
Hydrogen bond
C
Ionic bond
D
Peptide bond
Correct Answer
B
Biology
What is the name of the process in which a ribosome builds a protein based on the genetic code delivered by an mRNA molecule?
A
Transcription
B
Replication
C
Translation
D
Transformation
Correct Answer
C
Biology
Which vascular tissue in plants is responsible for transporting water and dissolved minerals upward from the roots to the leaves?
A
Phloem
B
Cambium
C
Epidermis
D
Xylem
Correct Answer
D
Biology
Which type of white blood cell is primarily responsible for producing antibodies against specific pathogens?
A
T lymphocytes
B
B lymphocytes
C
Macrophages
D
Neutrophils
Correct Answer
B
Biology
What is the primary molecule used by cells to store and transfer energy for immediate use?
A
Glucose
B
Adenosine triphosphate (ATP)
C
Glycogen
D
Deoxyribonucleic acid (DNA)
Correct Answer
B
Biology
What is the longest and strongest bone in the human body?
A
Tibia
B
Humerus
C
Femur
D
Fibula
Correct Answer
C
Biology
What term describes an allele that fully masks the expression of another allele paired with it in a heterozygous individual?
A
Recessive
B
Codominant
C
Incomplete
D
Dominant
Correct Answer
D