NCERT CLASS 11 | TOPIC : CELL AND CELL THEORY | ARQB | NEET BIOLOGY ONLINE TEST

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NCERT CLASS 11 | TOPIC : CELL AND CELL THEORY | ARQB | NEET BIOLOGY ONLINE TEST

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It contains 44 important questions. Choose the most correct answer. Then check your answer. Try again if there are errors. Regards : kalvisolai.net

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1 ➤ 165. Assertion: Bacterial cells may be motile or non motile.

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Reason: Bacterial cells may or may not posses cilia.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

2 ➤ 166. Assertion: Bacterial cell walls are not like the plant cell.

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Reason: Bacterial cell wall is not made up of cellulose.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

3 ➤ 167. Assertion: Membrane transport occurs through the carrier proteins.

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Reason: The transport carried by carrier proteins is always passive.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

4 ➤ 168. Assertion: Cristae are the infoldings of outer membrane of mitochondria.

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Reason: Electron transport occurs in mitochondrial stroma.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

5 ➤ 169. Assertion: Eukaryotic cells have more DNA than prokaryotic cells.

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Reason: Eukaryotes are genetically more complex than prokaryotes.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

6 ➤ 170. Assertion: Schleiden and Schwann were the first to observe the cells and to put forward the cell theory.

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Reason: The cells are always living unit.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

7 ➤ 171. Assertion: In animal cells, the lipid-like steroidal hormones are synthesized in SER.

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Reason: The smooth ER is the major site for synthesis of lipid.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

8 ➤ 172. Assertion: Lysosomes help in photorespiration.

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Reason: Lysosome have basic enzyme.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

9 ➤ 173. Assertion: Mitochondria is known as the power house of cell.

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Reason: ATP production takes place here.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

10 ➤ 174. Assertion: DNA is associated with proteins.

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Reason: DNA binds around histone protein that form a pool and the entire structure is called a nucleosome.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

11 ➤ 175. Assertion: Cell wall is not found in animal cell.

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Reason: Animal cells are covered by cell membrane.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

12 ➤ 176. Assertion: It is important that the organisms should have cell.

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Reason: A cell keeps its chemical composition steady within its boundary.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

13 ➤ 177. Assertion: The number of cells in a multicellular organism is inversely proportional to the size of body.

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Reason: All the cells in the biological world are of same size.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

14 ➤ 178. Assertion: A cell membrane shows fluid behaviour.

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Reason: A membrane is a mosaic or composite of diverse lipids and proteins.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

15 ➤ 179. Assertion: Mitochondria and chloroplasts are semi-autonomous organelles.

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Reason: Mitocondria and chloroplast are devoid of ribosomes.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

16 ➤ 180. Assertion: Cell is fundamental structural and functional unit of life.

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Reason: Anything less than a complete structure of a cell does not ensure independent life.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

17 ➤ 181. Assertion: Na+/K+ pump is an active transport.

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Reason: Na+/K+ pump utilize energy of ATP

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

18 ➤ 182. Assertion: Calcium pectate is referred as plant cement.

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Reason: It glues neighbouring plant cells together.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

19 ➤ 183. Assertion: Cell wall help in cell to cell interaction.

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Reason: Cell wall provide barrier to undesirable macromolecules.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

20 ➤ 184. Assertion: Lateral movement of protein lipid bilayer of plasma membrane is possible

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Reason: Lipid bilayer is of quasi fluid nature.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

21 ➤ 185. Assertion: Lysosomes posses’ acidic pH.

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Reason: Lysosomes are rich in hydrolytic enzymes which are activated by acidic pH.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

22 ➤ 186. Assertion: Mitochondria are the sites of aerobic respiration

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Reason: Mitochondria contain 80s type of ribosomes.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

23 ➤ 187. Assertion: Carbohydrate synthesis occurs in stroma of chloroplast.

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Reason: Enzyme required for carbohydrate synthesis present in stroma of chloroplast.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

24 ➤ 188. Assertion: Prokaryotic and Eukaryotic flagella are structurally similar.

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Reason: Cilia are longer than flagella.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

25 ➤ 189. Assertion: ‘s’ in ‘80s’ represent sedimentation coefficient

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Reason: Sedimentation coefficient is direct measure of density and size of ribosome.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

26 ➤ 190. Assertion: Lysosomes have acidic pH.

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Reason: It is maintain by pumping proton into interior of lysosome.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

27 ➤ 191. Assertion: Mitochondria and chloroplast are semi-autonomous cell organelle.

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Reason: Both contain DNA, RNA and ribosome.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

28 ➤ 192. Assertion: Unicellular organisms are capable of independent existence.

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Reason: Single cell in these organisms can perform essential function of life.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

29 ➤ 193. Assertion: Cell is fundamental structural and functional unit of all living organisms.

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Reason: A complete structure of cell does not ensure independent life. 8.21

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

30 ➤ 194. Assertion: Cell wall is unique character of the plant cells

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Reason: Cell membrane is only found in animal cells.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

31 ➤ 195. Assertion: Cells have different shapes

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Reason: Shapes of cells vary with function they perform

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

32 ➤ 196. Assertion: Genetic material in prokaryotic is said to be naked.

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Reason: Genetic material in prokaryotic is not associated with histone proteins and absence of nuclear envelope around it.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

33 ➤ 197. Assertion: Certain bacteria possess resistance to antibiotic.

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Reason: Certain bacteria possess plasmid

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

34 ➤ 198. Assertion: Mesosome in bacteria help in respiration

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Reason: Mesosome contain respiratory enzyme

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

35 ➤ 199. Assertion: Polysomes are found in prokaryote as well as eukaryotes

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Reason: Polysomes use to produce more protein replica from single mRNA.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

36 ➤ 200. Assertion: Ribosomes are found in both prokaryote and eukaryotes.

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Reason: Ribosomes are protein factories which is required for both types of cells.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

37 ➤ 201. Assertion: In lipid bilayer in membrane, lipid are arranged with polar head towards outer side and the hydrophobic tail towards the inner part

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Reason: This ensures that the nonpolar tail of saturated hydrocarbon is protected from aqueous environment.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

38 ➤ 202. Assertion: Integral proteins can’t be extracted easily from plasma membrane

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Reason: Integral proteins are partially or totally embedded in the membrane.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

39 ➤ 203. Assertion: RER is rough.

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Reason: This endoplasmic reticulum bears ribosomes.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

40 ➤ 204. Assertion: Golgi apparatus remain in close association with the endoplasmic reticulum.

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Reason: Material to be packaged in form of vesicle from the ER fuse with the cis face of the Golgi apparatus and move towards maturing face.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

41 ➤ 205. Assertion: Lysosomes are capable of digesting carbohydrate, protein, lipids and nucleic acids.

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Reason: Lysosomes contain almost all type of hydrolytic enzymes.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

42 ➤ 206. Assertion: Some ion concentration is higher in the vacuole than in the cytoplasm of plant cell.

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Reason: In the plant tonoplast facilitate the transport of some ions against concentration gradient into the vacuole.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

43 ➤ 207. Assertion: Chloroplast can synthesize proteins

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Reason: Chloroplast contains ribosomes.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

44 ➤ 208. Assertion: Ribosomes were discovered after discovery of electron microscope.

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Reason: Ribosomes can be observed by electron-microscope.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

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