NCERT Class 9 MCQ Quiz Hub

1. Which of the following can be made into crystal?
A bacterium
An Amoeba
A virus
A sperm

2. A cell will swell up if
the concentration of water molecules in the cell is higher than the concentration of water molecules in the surrounding medium.
the concentration of water molecules in the surrounding medium is higher than water molecules concentration in the cell.
the concentration of water molecules is same in the cell and in the surrounding medium.
concentration of water molecules does not matter.

3. Which of these options are not a function of ribosomes? (i) It helps in manufacture of protein molecules. (ii) It helps in manufacture of enzymes. (iii) It helps in manufacture of hormones. (iv) It helps in manufacture of starch molecules.
(i) and (ii)
(ii) and (iii)
(iii) and (iv)
(iv) and (i)

4. Which of these is not related to endoplasmic reticulum?
It behaves as a transport channel for proteins between nucleus and cytoplasm.
It transports materials between various regions in the cytoplasm.
It can be the site of energy generation.
None of These

5. Following are a few definitions of osmosis: Read carefully and select the correct definition.
Movement of water molecules from a region of higher concentration to a region of lower concentration through a semi-permeable membrane.
Movement of solvent molecules from its higher concentration to lower concentration.
Movement of solvent molecules from higher concentration to lower concentration of solution through a permeable membrane.
Movement of solute molecules from lower concentration to higher concentration of solution through a semi permeable membrane.

6. Plasmolysis in a plant cell is defined as
breakdown (lysis) of plasma membrane in hypotonie medium
shrinkageof cytoplasm in hypertonic medium
shrinkage of nucleoplasm
none of them

7. Which of the following are covered by a single membrane?
Mitochondria
Vacuole
Lysosome
Plastid

8. Find out the false sentence.
Nucleus is involved with the formation of lysosomes.
Nucleus, mitochondria and plastid have DNA, hence they are able to make their own structural proteins.
Mitochondria is said to be the power house of the cell as ATP is generated in them
Cytoplasm is called as protoplasm.

9. Find out the correct sentence.
Enzymes packed in lysosomes are made through RER (rough endoplasmic reticulum).
Rough endoplasmic reticulum and smooth endoplasmic reticulum produce lipid and protein respectively.
Endoplasmic reticulum is rélated to the destruction of plasma membrane.
Nucleoid is present inside the nucleoplasm of eukaryotic nucleus.

10. Which cell organelle plays a crucial role in detoxifring many poisons and drugs in a cell?
Golgi apparatus
Lysosomes
Smooth endoplasmic reticulum
Vacuoles

11. The proteins and lipids, essential for building the cell membrane, are manufactured by
rough endoplasmic reticulum
golgi apparatus
plasma membrane
mitochondria

12. The undefined nuclear region of prokaryotes is also known as
nucleus
nucleolus
nucleic acid
nucleoid

13. The cell organelle involved in forming complex sugars from simple sugars are
endoplasmic reticulum
ribosomes
plastids
golgi apparatus

14. Which out of the following is not a function of vacuole?
Storage
Providing turgidity and rigidity to the cell
Waste excretion
Locomotion

15. Amoeba acquires its food through a process, termed
exocytosis
endocytosis
plasmolysis
exocytosis and endocytosis both

16. Cell wall of which one of these is not made up of cellulose?
Bacteria
Hydrilla
Mango tree
Cactus

17. Silver nitrate solution is used to study
endoplasmic reticulum
golgi apparatus
nucleus
mitochondria

18. Organelle other than nucleus, containing DNA is
endoplasmic reticulum
golgi apparatus
mitochondria
lysosomes

19. Kitchen of the cell is
mitochondria
endoplasmic reticulum
chioroplast
golgi apparatus

20. Lipid molecules in the cell are synthesised by
smooth endoplasmic reticulum
rough endoplasmic reticulum
golgi apparatus
plastids

21. Cell arises from pre-existing cell was stated by
Haeckel
Virchow
Hooke
Schleiden

22. Cell theory was given by
Schleiden and Schwann
Virchow
Hooke
Haeckel

23. The only cell organelle seen in prokaryotic cell is
mitochondria
ribosomes
plastids
lysosomes

24. Organelle without a cell membrane is
ribosome
golgi apparatus
chioroplast
nucleus

25. Lysosome arises from
endoplasmic reticulum
golgi apparatus
nucleus
mitochondria

26. Living cells were discovered by
Robert Hooke
Purkinje
Leeuwenhoek
Robert Brown

27. Select the odd one out.
The movement of water across a semi permeable membrane is affected by the amount of substances dissolved in it.
Membranes are made of organic molecules like proteins and lipids.
Molecules soluble in organic solvents can easily pass through the membrane.
Plasma membranes contain chitin sugar in plants.