Page 222 - Class 9th Biology Objective Questions and Answers Chapter - Cell: Fundamental Unit of Life

Chapter - Cell: Fundamental Unit of Life

1. The function of the star nucleus is:
(A) DNA synthesis
(B) Spindle formation
(C) Respiration
(D) Reproduction
Answer :- (B) Spindle formation

2. The organelle found in the cytoplasm surrounded by membranes in which digestive chemicals or enzymes are found is called:
(A) Mitochondria
(B) Lysosome
(C) nucleus
(D) Stellate body
Answer :- (B) Lysosome

3. The membrane found around the plant cell is called 
(A) Tonoplast
(B) Dictyosomes
(C) Plasma membrane
(D) cell wall
Answer :- (C) Plasma membrane

4. The main difference between plant and animal cells is:
(A) Nutrition related
(B) speed related
(C) growth related
(D) Respiratory related.
Answer :- (A) Nutrition related

5 In which of the following cells the shape is not fixed?
(A) Amoeba
(B) nerve cell
(C) White blood cell
(D) all
Answer :- (D) All

6. Which is the longest cell?
(A) nerve cell
(B) Red blood cell
(C) White blood cell
(D) all
Answer :- (A) Nerve cell

7. Which of the following does not match the remaining three?
(A) ER
(B) Golgi
(C) Plastid
(D) Lysosome
Answer :- (C) Plastid

8. Prokaryotes do not have:
(A) 80 S ribosome
(B) nucleus
(C) nucleus
(D) all
Answer :- (D) All

9. Are not found in cell membrane:
(A) internal protein
(B) Fat Caster
(C) Cilia
(D) Christie 
Answer :- (D) Christie

10. Found in cell membrane:
(A) Flagella
(B) Desmosome
(C) Pururujjeevan
(D) all
Answer :- (D) All

11. Stellate body is found:
(A) in the cytoplasm
(B) In chromosome
(C) in the nucleus
(D) In the nucleus.
Answer :- (A) In the cytoplasm

12. The maximum magnification of electron microscope is:
(A) 100x
(B) 1000X
(C) 20,000
(D) 2,00,000
Answer :- (D) 2,00,000

13. The name of the scientist related to the origin of the word cell is:
(A) Schleiden and Schwann
(B) Watson and Crick
(C) Knoll Auruska
(D) Robert Hooke
Answer :- (D) Robert Hooke

14. The ER remains mobilized.
(A) From Golgi
(B) From cell membrane
(C) Nuclear membrane
(D) from everyone
Answer :- (D) From all

15. Which of the following developed first?
(A) Mitochondria
(B) Golgi
(C) nucleus
(D) Lysosome
Answer :- (A) Mitochondria

16. What happens in F0-F1 particles that ATP? Is synthesized?
(A) Protein
(B) Electron
(C) Protein pump
(D) Freves cycle
Answer :- (C) Protein pump

17.......Types of plastids are:
(A) Chloroplast
(B) Aluroplast
(C) Amyloplast
(D) All of these
Answer :- (D) All of these

18. Proplastid can be transformed:
(A) in chloroplast
(B) In chromoplast
(C) In leucoplast
(D) in all
Answer :- (D) in all

19. The nucleus controls:
(A) Various functions of the cell
(B) Nuclear synthesis
(C) Heredity
(D) everyone
Answer :- (D) To everyone

20. In which stage the red blood cells of mammals do not have a nucleus?
(A) At the time of synthesis
(B) Upon maturity
(C) At the time of death
(D) Both 'A' and 'B' times.
Answer :- (B) Upon maturity

21. Through which instrument is the microscopic structure of cells seen?
(A) Phase-contrast microscope
(B) Electron microscope
(C) Micro-dissection
(D) Compound microscope
Answer :- (B) Electron Microscope