Cell The Unit Of Life — DPP 7

20 NEET questions from Cell The Unit Of Life, with answers and explanations. Attempt it as a timed test to get scoring, accuracy breakdown and mistake tracking.

Attempt this test free 20 questions · 30 minutes · +80 marks
1
Which of the following is not a function of cell wall ?
  1. A Protection from mechanical damage and infection
  2. B Cell to cell interaction
  3. C Barrier to undesirable macromolecules
  4. D Secretion
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Correct answer: D

2
In r-RNA, "r" stands for :-
  1. A Reversible
  2. B Ribozyme
  3. C Ribosomal
  4. D Recognition
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Correct answer: C

3
(a) granular structure
(b) first observed under the electron microscope as dense particles by George Palade
(c) composed of RNA and proteins
(d) not surrounded by any membrane
Above given statements are true for which cell organelle?
  1. A Nucleolus
  2. B Ribosome
  3. C Lysosome
  4. D Chloroplast
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Correct answer: B

4
"Palade particles" are :-
  1. A Ribosomes
  2. B Golgi vesicles
  3. C Lysosomes
  4. D Peroxisomes
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Correct answer: A

5
Digestion of the tail of frog tadpole larva during metamorphosis is :-
  1. A Autophagy
  2. B Heterophagy
  3. C Pinocytosis
  4. D Autolysis
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Correct answer: D

6
The non-sticky chromosomal ends are known as-
  1. A Chromatids
  2. B Centromeres
  3. C Satellites
  4. D Telomeres
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Correct answer: D

7
In the stem of potato, presence of which of the following is significant ?
  1. A Amyloplasts
  2. B Elaioplasts
  3. C Chromoplasts
  4. D Aleuroplasts
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Correct answer: A

8
Which of following is not common in chloroplasts \& mitochondria ?
  1. A Both are present in animal cells
  2. B Both contain their own genetic material
  3. C Both are present in eukaryotic cells
  4. D Both are present in plant cells
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Correct answer: A

9
An elaborate network of filamentous proteinaceous structures present in the cytoplasm which helps in the maintenance of cell shape is called:
  1. A Endosplasmic Reticulum
  2. B Plasmalemma
  3. C Cytoskeleton
  4. D Thylakoid
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Correct answer: C

10
Arrangement of microtubules in centriole is:-
  1. A $9 + 2$
  2. B $2 + 9$
  3. C $11 + 0$
  4. D $9 + 0$
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Correct answer: D

11
Mark the correct statements related to cell wall.
(a) Non-living rigid structure
(b) Present in fungi and plants
(c) Provides barriers to undesirable macromolecules
(d) Primary cell wall is capable of growth
(e) Primary wall gradually diminishes as the cell matures
  1. A a, b, d
  2. B d only
  3. C c, d
  4. D All are correct
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Correct answer: D

12
Which cell organelle(s) take(s) part in the formation of lysosomes ?
  1. A Endoplasmic reticulum
  2. B Golgi bodies
  3. C Both (A) and (B)
  4. D Mitochondria
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Correct answer: C

13
The figure below shows the section of a cilia/flagella showing different parts labelled A and B select the correct labelled name?
Cell The Unit Of Life – NEET-2874
  1. A A - Radial spoke B - Central microtubule
  2. B A - Interdoublet Bridge B - Peripheral microtubule
  3. C A - Centeral sheath B - Plasma membrane
  4. D A - Interdoublet Bridge B - Radial spoke
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Correct answer: A

14
Which of the following is true about the internal structure of axoneme?
  1. A Central sheath is connected to one of the tubules of each peripheral doublet by a radial spoke.
  2. B Axoneme is not covered by plasma membrane at all.
  3. C There are only radial spokes and peripheral doublets found in axoneme.
  4. D Peripheral doublets are not connected with each other.
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Correct answer: A

15
Which one of the following has its own DNA?
  1. A Peroxisome
  2. B Mitochondria
  3. C Dictyosome
  4. D Lysosome
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Correct answer: B

16
Plasma membrane covers the central core of the flagella and cilia this central core is known as -
  1. A Bridge
  2. B Axoneme
  3. C Radial spoke
  4. D Arms
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Correct answer: B

17
Pick the incorrect statement :-
  1. A Steroids pass easily through lipid layer
  2. B Non polar substance pass easily through lipid layer
  3. C Small polar molecule may be passes easily by lipid layer.
  4. D Both polar charged and non-polar passes easily by lipid layer.
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Correct answer: D

18
Identify the correct set of statements out of followings :-
(a) Maximum arm ratio exhibited by acrocentric chromosomes
(b) Human cells (2n) has two genomes and each genome consists fourty six chromosomes
(c) Nucleolar organizer regions are not present on each human chromosomes
(d) Secondary constriction is present at the place of centromere
(e) Each centromere posses two protein discs called kinetochores
Choose the correct answer from the given options below.
  1. A b, c, d & e
  2. B a, b, c & d
  3. C a, c & e
  4. D a, b & c
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Correct answer: C

19
The figure given below shows the structure of plasma membrane, with its parts labelled from A to E, Identify the correct :-
Cell The Unit Of Life – NEET-2618
  1. A $\mathrm { A } \rightarrow$ 52 percent of erythrocyte membrane
  2. B $\mathrm { B }$ and $\mathrm { E } \rightarrow$ Movement of these can be measured as fluidity of membrane
  3. C $\mathrm { C } \rightarrow$ Help in facilitated transport of polar molecules
  4. D $\mathrm { D } \rightarrow$ Its polar tail contains saturated hydrocarbons
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Correct answer: B

20
The protein nucleoplasmin occurs on :-
  1. A Nuclear pore
  2. B Sieve cells
  3. C Nucleolus
  4. D Hetero chromatin
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Correct answer: A

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