General science GK question answer || 300+MCQ || free PDF
26. What is the primary role of white blood cells?
a) Transporting oxygen
b) Fighting infections
c) Clotting blood
d) Carrying nutrients
Answer: b) Fighting infections
27. Which part of the plant is responsible for reproduction?
a) Root
b) Stem
c) Leaf
d) Flower
Answer: d) Flower
28. What is the term for the process of cell differentiation?
a) Specialization
b) Replication
c) Transcription
d) Translation
Answer: a) Specialization
29. What is the primary function of the lysosome?
a) Energy production
b) Digestion of cellular waste
c) Protein synthesis
d) Photosynthesis
Answer: b) Digestion of cellular waste
30. Which of the following is not a function of the liver?
a) Producing bile
b) Storing glucose
c) Filtering blood
d) Producing insulin
Answer: d) Producing insulin
General science GK
31. What is the name of the structure that controls the passage of substances in and out of the nucleus?
a) Nuclear membrane
b) Cell membrane
c) Endoplasmic reticulum
d) Golgi apparatus
Answer: a) Nuclear membrane
32. Which organelle is responsible for the synthesis of proteins?
a) Ribosome
b) Mitochondria
c) Chloroplast
d) Lysosome
Answer: a) Ribosome
33. What is the term for the exchange of genetic material between homologous chromosomes during meiosis?
a) Cross-over
b) Independent assortment
c) Mutation
d) Genetic drift
Answer: a) Cross-over
34. Which type of muscle tissue is involuntary and found in the walls of internal organs?
a) Skeletal muscle
b) Cardiac muscle
c) Smooth muscle
d) Epithelial tissue
Answer: c) Smooth muscle
35. What is the term for the study of the structure of organisms?
a) Genetics
b) Anatomy
c) Physiology
d) Ecology
Answer: b) Anatomy
36. What is the main function of the small intestine?
a) Absorbing nutrients
b) Producing bile
c) Breaking down proteins
d) Regulating blood sugar
Answer: a) Absorbing nutrients
37. What is the term for the process by which an organism adapts to its environment over time?
a) Evolution
b) Mutation
c) Migration
d) Adaptation
Answer: a) Evolution
38. Which part of the cell is responsible for producing ribosomes?
a) Nucleus
b) Mitochondria
c) Ribosome
d) Golgi apparatus
Answer: a) Nucleus
39. What is the term for the process by which cells undergo programmed cell death?
a) Apoptosis
b) Necrosis
c) Phagocytosis
d) Endocytosis
Answer: a) Apoptosis
40. Which type of RNA is involved in the synthesis of proteins?
a) mRNA
b) tRNA
c) rRNA
d) All of the above
Answer: d) All of the above
General science GK
41. What is the primary role of the integumentary system?
a) Protection
b) Digestion
c) Circulation
d) Respiration
Answer: a) Protection
42. What is the term for the genetic material found in the mitochondria?
a) mDNA
b) tDNA
c) rDNA
d) cDNA
Answer: a) mDNA
43. What is the role of the vacuole in plant cells?
a) Storage of nutrients and waste products
b) Protein synthesis
c) Energy production
d) Photosynthesis
Answer: a) Storage of nutrients and waste products
44. Which organ system is primarily responsible for transporting hormones and nutrients throughout the body?
a) Respiratory system
b) Digestive system
c) Circulatory system
d) Nervous system
Answer: c) Circulatory system
45. What is the term for the study of the interactions between organisms and their environment?
a) Ecology
b) Evolution
c) Genetics
d) Botany
Answer: a) Ecology
46. Which type of cell division produces gametes?
a) Mitosis
b) Meiosis
c) Binary fission
d) Budding
Answer: b) Meiosis
47. What is the term for the loss of water from the body through sweat?
a) Transpiration
b) Evaporation
c) Perspiration
d) Respiration
Answer: c) Perspiration
48. Which of the following is a function of the endocrine system?
a) Producing hormones
b) Filtering blood
c) Digesting food
d) Coordinating movement
Answer: a) Producing hormones
49. What is the term for the process by which genetic information is transferred from DNA to RNA?
a) Translation
b) Replication
c) Transcription
d) Mutation
Answer: c) Transcription
50. What is the primary function of the circulatory system?
a) Transporting oxygen and nutrients
b) Digestion of food
c) Removal of waste products
d) Protection against disease
Answer: a) Transporting oxygen and nutrients
General science GK
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