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Biology
Cell: The Unit of Life
137 questions from 38 papers, each with its answer.
- 137 questions
- 38 papers
- 3.89% of Biology
Structure and Function of Cell Organelles
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Match List-I with List-II regarding cell organelles and their functions/structural features.
Pick the matching item from Column II for each row.
Column I
- A. Nucleolus
- B. Centriole
- C. Leucoplasts
- D. Golgi apparatus
Column II
- I. Site of formation of glycolipid
- II. Organization like the cartwheel
- III. Site for active ribosomal RNA synthesis
- IV. For storing nutrients
Correct answer: A → III, B → II, C → IV, D → I
Nucleolus – site for active ribosomal RNA synthesis Centriole – organisation like a cartwheel (9 peripheral triplet microtubules) Leucoplasts – colourless plastids for storing nutrients (starch, oils, proteins) Golgi apparatus – important site of formation of glycoproteins and glycolipids Correct match: A-III, B-II, C-IV, D-I.
Semiautonomous Organelle DNA (Chloroplast)
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The DNA present in chloroplast is:Chloroplasts (like mitochondria) contain their own DNA, which is circular and double stranded, similar to bacterial DNA.
Ultrastructure of Centriole and Mitochondria
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Match List-I with List-II regarding cell structures.
Pick the matching item from Column II for each row.
Column I
- A. Axoneme
- B. Cartwheel pattern
- C. Crista
- D. Satellite
Column II
- I. Centriole
- II. Cilia and flagella
- III. Chromosome
- IV. Mitochondria
Correct answer: A → II, B → I, C → IV, D → III
Axoneme – forms the core of cilia and flagella Cartwheel pattern – organisation of the centriole Crista – infoldings of the inner membrane of mitochondria Satellite – short segment (knob) of certain chromosomes Correct match: A-II, B-I, C-IV, D-III.
Membrane Structure of Mitochondria and Chloroplast
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Given below are two statements: Statement I: Mitochondria and chloroplasts are both double membrane bound organelles. Statement II: Inner membrane of mitochondria is relatively less permeable, as compared to chloroplast. In the light of the above statements, choose the most appropriate answer from the options given below:Statement I is correct: both mitochondria and chloroplasts are double membrane bound organelles. Statement II is incorrect: the inner membranes of both mitochondria and chloroplasts are relatively impermeable, with specific transporters for selective transport. So Statement I is correct but Statement II is incorrect.
That is every question in Cell: The Unit of Life for this filter.
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