Class IX CBSE NCERT Objective Type Questions
Biology : The Fundamental Unit of Life - Cell
Series - 1
1. ____________ are molecular organisms
A. Yeasts
B. Fungi
C. Viruses
D. Bacteria
2. The smallest cellular organelle is
A. Mitochondria
B. Ribosomes
C. Centriole
D. Golgi Apparatus
3. Which of the following cell organelles have single membranes?
i) Golgi Apparatus
ii) Lysosomes
(iii) Endoplasmic Reticulum
iv) Vacuoles
A. (i) (ii) (iii)
B. (i) (iii) (iv)
C. (ii) (iii) (iv)
D. All of these
4. The largest cellular organelle in animals is
A. Nucleus
B. Vacuole
C. Mitochondria
D. Golgi Body
5. The thin protoplasmic projections connecting two adjacent plant cells is
A. Photodesmata
B. Plasmosol
C. Plasmodesmata
D. Phytoplasma
6. The connecting layer between two adjacent plant cells is
A. Middle Lamella
B. Plasmodesmata
C. Cytosol
D. Plastosol
7. The membrane of the vacuole in a plant cell is called
A. Cytoplast
B. Tonoplast
C. Chloroplast
D. Cyanoplast
8. Mitochondria and ________________ can replicate themselves
A. Nucleus
B. Lysosomes
C. Centriole
D. Plastids
9. ____________ are neither prokayotic or Eukaryotic
A. Bacteria
B..Virus
C. Protozoa
D. Both A & B
10. Which cell organelles have two membranes ?
(i) Mitochondria
(ii) Chloroplasts
(iii)Endoplasmic Reticulum
(iv) Plastids
(v) Nucleus
A. (i) (ii) (iii) (iv)
B. (i) (iii) (iv) (v)
C. (i) (ii) (iv) (v)
D. All of these
11. The largest cell structure is
A. Cytoplasm
B. Nucleus
C. Cell Membrane
D. Cell Wall
12. In prokaryotic cells, DNA is not enclosed in a nuclear membrane which is known as
A. Nucleolus
B. Nucleocus
C. Nucleoid
D. Nucleoplast
13. Ribsomes are smaller in size in ___________ cells
A. Prokaryotic
B. Eukaryotic
C. Virus
D. None of these
14. Genetic Material is called as
A. RNA
B. DNA
C. Gene
D. Neucleotide
15. The largest cellular organelle in plants is
A. Mitochondria
B. Lysosomes
C. Plastids
D. Vacuoles
16. _____________ is used as the energy currency to carry out various cellular activities
A. Chloroplast
B. Mitochondria
C. ATP
D. Chromosome
17. Blue-green algae are known as
A. Euglena
B. Plankton
C. Pyrrophyta
D. Cyanobacteria
18. The colloidal ground substance of cytoplasm is called
A. Cytoplast
B. Chloroplast
C. Cytosol
D. Cytosis
19. Amoeba takes food by ____________
A. Potocytosis
B. Phagocytosis
C. Receptor Based Endocytosis
D. Exocytosis
20. Name few naked cell organelles
(i) Mitochondria
(ii) Ribosomes
(iii)Endoplasmic Reticulum
(iv) Nucleolus
(v) Centriole
A. (i) (ii) (iii)
B. (i) (iii) (v)
C. (ii) (iv) (v)
D. All of these
SCROLL BELOW FOR THE ANSWERS
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Answers for Series 1 Bio Fundamental Unit of Life
1. Viruses
2. Ribosomes
3. All of these - Golgi Apparatus, Lysosomes, Endoplasmic Reticulum and Vacuoles
4. Mitochondria
5. Plasmodesmata
6. Middle Lamella
7. Tonoplast
8. Plastids
9. Viruses
10.(i) (ii) (iv) (v) - Mitochondria, Chloroplasts, Plastids, and Nucleus
11.Nucleus
12.Nucleoid
13.Prokaryotic cells ( They are 70S in contrast to 80S ribosomes of Eukaryotes )
14.DNA
15.Plastid
16.ATP ( Adenosine Triphosphate )
17.Cyanobacteria
18.Cytosol
19.Phagocytosis
20.(ii) (iv) (v) - Ribosomes, Nucleolus, and Centriole
More questions to follow in another post. Keep your brains tuned up !
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