Practice Test Sets (Total Questions: 100)

Topic Practice: Cell: The Unit of Life (Test - 1)

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About Cell: The Unit of Life MCQ

Master 'Cell: The Unit of Life' for NEET UG with chapter-wise MCQs, detailed organelle functions, and high-yield notes covering prokaryotic and eukaryotic ce…

This Cell: The Unit of Life MCQ practice set is designed for students preparing for school exams and competitive exams. It contains 100 multiple choice questions divided into 2 test sets of up to 50 questions each. Every question has four options, and after answering you can see the correct option, a detailed explanation and how other users answered.

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Sample Cell: The Unit of Life Questions

Given below are two statements: Statement I: Schleiden concluded that the presence of a cell wall is a unique character of plant cells based on his studies on plant tissues. Statement II: Schwann proposed the hypothesis that the bodies of animals and plants are composed of cells and products of cells. In light of the above statements, choose the correct answer:
- A. Both Statement I and Statement II are correct
- B. Both Statement I and Statement II are incorrect
- C. Statement I is correct but Statement II is incorrect
- D. Statement I is incorrect but Statement II is correct
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Omnis cellula-e-cellula was proposed by Rudolf Virchow to modify the cell theory. Reason (R): Schleiden and Schwann together formulated the cell theory but did not explain how new cells were formed. In the light of the above statements, choose the correct answer:
- A. Both (A) and (R) are true and (R) is the correct explanation of (A)
- B. Both (A) and (R) are true but (R) is NOT the correct explanation of (A)
- C. (A) is true but (R) is false
- D. (A) is false but (R) is true
Consider the following four statements regarding cell structure and identify the INCORRECT statement(s): (i) Mycoplasmas are the smallest living cells and can survive without oxygen. (ii) Prokaryotic cells are generally smaller and multiply more rapidly than eukaryotic cells. (iii) Ribosomes and centrosomes are membrane-less organelles found in both eukaryotic and prokaryotic cells. (iv) Genomic DNA in prokaryotes is naked and circular, consisting of a single chromosome.
- A. (i) and (iii)
- B. (iii) only
- C. (ii) and (iv)
- D. (i), (ii) and (iv)
Which of the following cellular features is common to both prokaryotes and eukaryotes?
- A. Presence of histone proteins associated with nuclear DNA
- B. Cell wall composed of peptidoglycan
- C. Fluid mosaic plasma membrane made of phospholipid bilayer
- D. Presence of membrane-bound organelles like ER and Golgi bodies
Which of the following statements about extrachromosomal plasmid DNA in prokaryotes is INCORRECT?
- A. Plasmids are small, circular, double-stranded DNA molecules present in addition to genomic DNA.
- B. Plasmid DNA confers unique phenotypic characters to bacteria, such as resistance to antibiotics.
- C. Plasmids are essential for basic metabolic survival and housekeeping functions of prokaryotic cells.
- D. Plasmid DNA is used to monitor bacterial transformation with foreign DNA.

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