Science Olympiad : Learning Biology MCQ practice with Answers set-4
1. Father of Biology ?
Ans: Aristotle
Explanation: He first systematically studied and classified living organisms.
Q. Father of Modern Biology ?
Ans: Linnaeus
Explanation: He developed the modern system of naming and classifying organisms (binomial nomenclature).
Q. Father of Zoology ?
Ans: Aristotle
Explanation: He studied animal structure, habits, and classification in detail.
Q. Father of Botany ?
Ans: Theophrastus
Explanation: He wrote the earliest scientific books on plants.
Q. Father of Medicine ?
Ans: Hippocrates
Explanation: He introduced scientific principles in medicine and clinical observation.
Q. Who discovered Cell ?
Ans: Robert Hooke (1665)
Explanation: He observed cork cells and coined the term “cell.”
Q. Who discovered Nucleus ?
Ans: Robert Brown
Explanation: He identified the central round body in plant cells.
Q. Who discovered Protoplasm ?
Ans: Purkinje
Explanation: He described the living content inside a cell.
Q. Who discovered Mitochondria ?
Ans: Albert von Kolliker
Explanation: He first observed mitochondria in muscle cells.
Q. Who discovered Ribosome ?
Ans: George Palade
Explanation: He identified ribosomes as protein-synthesizing cell structures.
Q. Who discovered Golgi body ?
Ans: Camillo Golgi
Explanation: He used a staining technique to discover this cell organelle.
Q. Powerhouse of cell ?
Ans: Mitochondria
Explanation: They produce energy (ATP) for the cell.
Q. Suicidal bag of cell ?
Ans: Lysosome
Explanation: They contain enzymes that digest damaged cell parts.
Q. Kitchen of cell ?
Ans: Chloroplast
Explanation: They make food (glucose) through photosynthesis.
Q. Control center of cell ?
Ans: Nucleus
Explanation: It contains DNA and regulates all cell activities.
Q. Genetic material of cell ?
Ans: DNA
Explanation: DNA carries hereditary information.
Q. Ribonucleic acid short form ?
Ans: RNA
Explanation: RNA helps in protein synthesis.
Q. Basic unit of life ?
Ans: Cell
Explanation: All living organisms are made of cells.
Q. Largest cell in human body ?
Ans: Ovum (egg cell)
Explanation: It is visible to the naked eye and the largest human cell.
Q. Smallest cell in human body ?
Ans: RBC
Explanation: Red blood cells are tiny, disc-shaped cells.
Q. Red color of blood is due to ?
Ans: Hemoglobin
Explanation: Hemoglobin contains iron which gives blood its red color.
Q. Universal donor blood group ?
Ans: O negative
Explanation: O⁻ blood can be given to all groups safely.
Q. Universal recipient blood group ?
Ans: AB positive
Explanation: AB⁺ can receive blood from all groups.
Q. Number of chromosomes in humans ?
Answer: 46 (23 pairs)
Explanation: Humans inherit 23 chromosomes from each parent.
Q. Largest organ in human body ?
Ans: Skin
Explanation: Skin covers the entire body and protects internal organs.