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MCQ Questions for Class 8 Science with Answers
Q1. Which of the following is not a major component of protoplasm:
(i) hydorgen
(ii) nitrogen
(iii) Sulphur
(iv) oxygen
(iii) Sulphur
Q2. The liquid material in the nucleus is
(i) chromosomes
(ii) bacteria
(iii) nucleoplasm
(iv) nucleolus
(iii) nucleoplasm
Q3. Vacuoles of plant cells are
(i) permanent
(ii) semi-permanent
(iii) temporary
(iv) impermeable
(i) permanent
Q4. Cells present in living organism differ in
(i) numbers
(ii) shape
(iii) size
(iv) all of these
(iv) all of these
Q5. Which of the following would not be considered part of a cell’s cytoplsm?
(i) Ribosome
(ii) Nucleus
(iii) Mitochondrion
(iv) Microtubule
(ii) Nucleus
Q6. A single cell that can change its shape is:
(i) Paramecium
(ii) HIVs
(iii) WBCs
(iv) None of the above
(iii) WBCs
Q7. Which of the following is present only in plants:
(i) plasma membrane
(ii) cell wall
(iii) nucleo membrane
(iv) cytoplasm
(ii) cell wall
Q8. The control centre of all the activities of a cell is
(i) nucleus
(ii) nucleoplasm
(iii) cytoplasm
(iv) organelles
(i) nucleus
Q9. Which of the following tissues include blood cell?
(i) Epithelial tissue
(ii) Muscle tissue
(iii) Connective tissue
(iv) Nervous tissue
(iii) Connective tissue
Q10. Genes are located in
(i) chrpmosomes
(ii) plastids
(iii) cytoplasm
(iv) lysosome
(i) chrpmosomes
Q11. Nucleolus was discovered by
(i) Fontana
(ii) Schleiden
(iii) Altmann
(iv) Robert Brown
(i) Fontana
Q12. Single celled organisms are called
(i) Unicellular
(ii) Multicellular
(iii) Both of the above
(iv) None of the above
(i) Unicellular
Q13. The white part of egg is called:
(i) yolk
(ii) albumen
(iii) cytoplasm
(iv) none of these
(ii) albumen
Q14. Genes are located in
(i) chromosomes
(ii) plastids
(iii) cytoplasm
(iv) lysosome
(i) chromosomes
Q15. Cell wall of bacteria contains :
(i) phospholipid
(ii) ribonucleic acid
(iii) peptidoglycan
(iv) deoxyribonucleic acid
(iii) peptidoglycan
Q16. Cell walls is found in
(i) plant cells only
(ii) animal cells only
(iii) both (i) and (ii)
(iv) none of them
(i) plant cells only
Q17. Lysosomes are the reservoirs of
(i) Fat
(ii) RNA
(iii) Secretory glycoproteins
(iv) Hydrolytic enzymes.
(iv) Hydrolytic enzymes.
Q18. Unit of inheritance in living organisms is:
(i) gene
(ii) chromatin fibres
(iii) protein
(iv) chromosomes
(i) gene
Q19. The basic structural unit of living organisms is:
(i) cell
(ii) tissue
(iii) organ
(iv) none of these
(i) cell
Q20. Which of the following cells is of irregular shape?
(i) RBC
(ii) WBC
(iii) Muscle cell
(iv) Neuron
(ii) WBC
Q21. Which of the following is a locomotory organelle in protozoa ?
(i) pseudocoelom
(ii) tentacles
(iii) flagella
(iv) all of them
(iii) flagella
Q22. The other name of cell membrane is
(i) plasma membrane
(ii) cell wall
(iii) nuclear membrane
(iv) none of these
(i) plasma membrane
Q23. Which organelle releases oxygen?
(i) Ribosome
(ii) Golgi apparatus
(iii) Mitochondria
(iv) Chloroplast.
(iv) Chloroplast.
Q24. Which of the following components is/ are present in the nervous system?
(i) Brain
(ii) Spinal cord
(iii) Cranial and spinal nerves
(iv) All of the above
(iv) All of the above
Q25. Which of the following cells are long in shape:
(i) nerve Cells
(ii) muscle Cells
(iii) fibre Cells
(iv) all of these
(iv) all of these
Q26. Which of the following cells is shaped like a star with a tail?
(i) Neuron
(ii) Cells of skin
(iii) Muscle cell
(iv) RBC
(i) Neuron
Q27. Cell membrane is also called:
(i) cell wall
(ii) nucleolus
(iii) cytoplasm
(iv) Plasma membrane
(iv) Plasma membrane
Q28. Ribosomes are composed of –
(i) 1 subunit
(ii) 5 subunits
(iii) 2 subunits
(iv) 4 subunits
(iii) 2 subunits
Q29. Eukaryotic cells are found In:
(i) all organisms
(ii) bacteria and blue green algae.
(iii) all organisms except bacteria and blue green algae
(iv) none of these
(iii) all organisms except bacteria and blue green algae
Q30. The egg of an Ostrich is a/an
(i) tissue
(ii) organ
(iii) cell
(iv) organ system
(iii) cell
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