NEET Biology MCQ - Neet Biology Cell Structure And Organelle Mcq - Quiz-16 Solution

Q.1.

on Q190) The materials essential for dark reaction are located in

12%
a) Circular-DNA
50%
b) Thylakoids
38%
c) Stroma
0%
d) Ribosomes

Explanation

Q.2.

on Q191) It shows presence of Nucleoid.

25%
a) Plant cell
50%
b) Bacteria
25%
c) Animal cell
0%
d) Virus

Explanation

Q.3.

on Q192) How many grana present in one chloroplast?

71%
a) 40-60
0%
b) 42-47
14%
c) 60-80
14%
d) 02-100

Explanation

Q.4.

on Q193) (A) Mesosome are formed by a specialized differentiated form of cell membrane. (R) Cell membrane is the lamellas envelop.

40%
a) Assertion (A) and Reason (R) both are true and reason (B) is correct explanation of the assertion A.
60%
b) Assertion (A) and Reason (R) both are true but reason B is not a correct explanation of the assertion (A)
0%
c) Assertion (A) is true but Reason (B) is false.
0%
d) Assertion (A) is false but Reason B is true.

Explanation

Q.5.

on Q194) Select mismatch option

0%
a) Centriole - 9 + 0
20%
b) Cilia - 9 + 2
20%
c) Fimbriae - Conjugation
60%
d) middle lamella - Lignin

Explanation

Q.6.

on Q195) Which organelle is considered as plant lysosome?

40%
a) Lysosomes.
0%
b) Glyoxysomes.
60%
c) Sphaerosomes.
0%
d) Peroxisomes.

Explanation

Q.7.

on Q196) A student was given cell samples (A and B) to identify parts which are highlighted. He observed the samples under the microscope and list down the function of the part of cell sample. The information collected by the student is listed in the table below, on the basis of which the student infers that the samples contain the organelles. Identify the part highlighted in the sample A and B and explain why they were called as semi-autonomous organelles?

Sample A	Sample B
Make energy available for cellular metabolism	Generates ATP and synthesizes sugar
Absent in cell that carry oxygen throughout the body	Present in plant cell
Called the energy currency of cell	Source o f all the food energy

0%
a) Sample A - Mitochondria, Sample B - Chloroplast; because both the organelles are double membrane bound structure.
20%
b) Sample A- Mitochondria, Sample B - Chloroplast; because they both are capable of synthesis of their own proteins only.
60%
c) Sample A - Mitochondria, Sample B - Chloroplast; because they are capable of synthesis of their own proteins and contain their own DNA.
20%
d) Sample A- Mitochondria, Sample B - Chloroplast; because they contain their own DNA to transfer the genetic information from one generation to another.

Explanation

Q.8.

on Q197) Which of the following is not the function of cell wall? (i) Provides shape to the cell. (ii) Protects the cell from mechanical damage and infection. (iii) Helps in cell to cell interaction. (iv) Provides barrier to undesirable macromolecules.

0%
a) Only (i).
0%
b) Only (iv).
75%
c) Only (ii), (iii) and (iv).
25%
d) None of the above.

Explanation

Q.9.

on Q198) ER of adjacent cells are connected by:

75%
a) Desmotubule.
0%
b) Microtubule.
25%
c) Actin filament.
0%
d) Microsome.

Explanation

Q.10.

on Q199) Lysosomes were discovered by:

0%
a) Porter.
33%
b) DeDuve.
33%
c) Palade.
33%
d) Golgi

Explanation

Q.11.

on Q200) Which of the following statement regarding cilia is correct?

50%
a) Cilia contain an outer of nine doublet microtubules surrounding a central microtubule.
25%
b) Cilia are hair like outgrowths of the nuclear membrane.
0%
c) The peripheral doublets are also interconnected by linkers.
25%
d) Central sheath is connected to one of the tubules of each peripheral singlet by radial spokes.

Explanation

Q.12.

on Q201) Which of the following statements are true: (i) Telomere is rich in guanine bases. (ii) Anthocyanin is a water soluble pigment found only in vacuole which imparts colour to petals. (iii) In humans, 15th chromosome have SAT region. (iv) 6000 cellulose molecules are present in one fibril.

0%
a) (ii) only.
0%
b) (i) only.
33%
c) (i), (ii) and (iii).
67%
d) All of these.

Explanation

Q.13.

on Q202) How many of the following characters are true regarding primary wall? (i) Forms during cell growth. (ii) Formed by accretion. (iii) Cellulose microfibrils are loosely packed in the matrix. (iv) Pits present. (v) Many layered.

0%
a) 4
33%
b) 3
67%
c) 1
0%
d) 2

Explanation

Q.14.

on Q203) What is not true about Sphaerosomes?

33%
a) Arise from RER.
67%
b) Half unit membrane bound.
0%
c) Stores lipids/fats.
0%
d) Acts as plant lysosomes.

Explanation

Q.15.

on Q204) Which of the following structures arises from cell membrane?

0%
a) Flagella.
0%
b) Fimbriae.
0%
c) Cilia.
100%
d) All of these.

Explanation

Q.16.

on Q205) Which of the following statements is true regarding middle lamella? (i) Colloidal in nature. (ii) Ca is more predominant. (iii) Mg is more predominant. (iv) Ca and Mg pectates are present in equal amounts. (v) Found in between the primary wall of the adjacent cells.

0%
a) (i) and (ii) only.
0%
b) (i) and (iii) only.
50%
c) (i), (ii) and (v) only.
50%
d) (iv) and (v) only.

Explanation

Q.17.

on Q206) Peroxisomes contain:

50%
a) Hydrolases.
0%
b) Transferases.
50%
c) Isomerases.
0%
d) Oxidases.

Explanation

Q.18.

on Q207) Assertion: Nucleus controls different metabolic as well as hereditary activity of the cell. Reason: Size of nucleus is related to the size of the chromosome.

100%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
0%
b) Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion.
0%
c) Assertion is true but Reason is false.
0%
d) Both Assertion and Reason are false.

Explanation

Q.19.

on Q208) Assertion: Lipids are arranged within the cell membrane with the hydrophilic tail towards the inner part. Reason: Due to fluidity of proteins, lipids are laterally moving through lipid bilayer.

50%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
0%
b) Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion.
0%
c) Assertion is true but Reason is false.
50%
d) Both Assertion and Reason are false.

Explanation

Q.20.

on Q209) Which of the following is false regarding bacterial cell? (i) Lipid content is lower in gram +ve bacteria than gram -ve bacteria. (ii) Porins are present in both gram +ve and gram -ve bacteria. (iii) Mesosomes are very prominent in gram +ve bacteria. (iv) Lipopolysaccharides are present in gram -ve bacteria.

0%
a) Both (i) and (ii).
50%
b) All except (i).
50%
c) (i), (iii) and (iv).
0%
d) (ii) only.

Explanation

Q.21.

on Q210) Which of the follow is common character shared by both prokaryotes and eukaryotes?

0%
a) Nucleus.
50%
b) Complex genome with histones.
50%
c) Cytoskeleton.
0%
d) Phospholipid bilayer.

Explanation

Q.22.

on Q211) If you remove the fimbriae from the bacterial cell, which of the following would you expect to happen?

0%
a) The bacteria would no longer swim.
50%
b) The bacteria would no longer adher to the host tissue.
0%
c) Transportation of molecules across the membrane would stop.
50%
d) The shape of bacteria would change.

Explanation

Q.23.

on Q212) The outer membrane of the nucleus: I. is continuous with the Endoplasmic reticulum. II. does bear ribosomes.

50%
a) Only I is correct.
0%
b) Only II is correct.
50%
c) Both I and II are correct.
0%
d) Both I and II are incorrect.

Explanation

Q.24.

on Q213) Mitochondria and chloroplast are: I. Semi-autonomous organelles. II. Formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery. Which one of the following options is correct?

50%
a) II is true but I is false.
50%
b) I is true but II is false.
0%
c) Both I and II are false.
0%
d) Both I and II are correct.

Explanation

Q.25.

on Q214) How many of the following cell organelles are membranous? Endoplasmic reticulum, Nucleus, lysosomes, vacuoles, ribosomes, centrioles. /

0%
a) 6.
0%
b) 5.
100%
c) 4.
0%
d) 2.

Explanation

Q.26.

on Q215) It is responsible for beginning of the life of organisms.

0%
a) Tissue
0%
b) Zygote
100%
c) Cell
0%
d) Embryonic layer

Explanation

Q.27.

on Q216) The unit of phloem in which nucleus is absent.

50%
a) Sieve cell
50%
b) Sieve tube
0%
c) Companion cell
0%
d) Phloem parenchyma

Explanation

Q.28.

on Q217) What is the diameter of cisternae in golgi apparatus?

50%
a) 0.5µm - 1µm
0%
b) 0.5 mm - 1 mm
0%
c) 5 µm - 10 µm
50%
d) 0.05 µm - 1µm

Explanation

Q.29.

on Q218) (A)In mitochondria inner layer has many folding which is known as cristae. (R)In cristae ETS occurs.

50%
a) Assertion (A) and Reason (R) both are true and reason (B) is correct explanation of the assertion A.
50%
b) Assertion (A) and Reason (R) both are true but reason B is not a correct explanation of the assertion (A)
0%
c) Assertion (A) is true but Reason (B) is false.
0%
d) Assertion (A) is false but Reason B is true.

Explanation

Q.30.

on Q219) (A)Animal cell possesses centriole. (R)some algae also possesses centriole

50%
a) Assertion (A) and Reason (R) both are true and reason (B) is correct explanation of the assertion A.
50%
b) Assertion (A) and Reason (R) both are true but reason B is not a correct explanation of the assertion (A)
0%
c) Assertion (A) is true but Reason (B) is false.
0%
d) Assertion (A) is false but Reason B is true.

Explanation

Q.31.

on Q220) In Column-I Organell and in Column-II its function is given, select correct option

Column I	Column I
P) Mitochondria	1) Suicide bag
Q) Chloroplast	2) Synthesis of steroids
R) Lysosome	3) Photosynthesis
S) SER	4) ATP- formation and storage

100%
a) (P - 4) (Q - 3) (R - 1) (S - 2)
0%
b) (P - 2) (Q - 1) (R - 4) (S - 3)
0%
c) (P - 4) (Q - 3) (R - 2) (S - 1)
0%
d) (P - 1) (Q - 2) (R - 3) (S - 4)

Explanation

Q.32.

on Q221) Which of the following is correct regarding the number of microtubule doublets and radial spokes in cilia?

50%
a) Nine and nine.
50%
b) Nine and eleven.
0%
c) Eleven and nine.
0%
d) Eleven and eleven.

Explanation

Q.33.

on Q222) Chemical nature of carrier molecules facilitating transport across plasma membrane is:

50%
a) Sugary.
50%
b) Proteinaceous.
0%
c) Fatty acids.
0%
d) Starchy.

Explanation

Q.34.

on Q223) Which of the following statements is/are correct? (i) The endomembrane system includes plasma membrane, ER, Golgi complex, lysosomes and vacuoles. (ii) ER helps in the transport of substances, synthesis of proteins, lipoproteins and glycogen. (iii) Ribosomes are involved in protein synthesis. (iv) Mitochondria help in oxidative phosphorylation and generation of ATP.

50%
a) (ii), (iii) & (iv).
0%
b) (i) only.
50%
c) (ii) only.
0%
d) (iii) only.

Explanation

Q.35.

on Q224) Which of the following substances are present in plant cell wall? (i) Pectin. (ii) Suberin. (iii) Cutin. (iv) Lignin. (v) Silica. (vi) Callose. (vii) Algin. (viii) Murein.

0%
a) (i), (ii), (iii), (iv), (vii).
50%
b) (i), (ii). (v), (vii), (viii).
50%
c) (i), (ii), (iii), (v), (vi), (vii).
0%
d) (ii), (iii), (v), (vii), (viii).

Explanation

Q.36.

on Q225) Which of the following function is not related with golgi complex?

0%
a) Phragmoplast formation.
50%
b) Glyoxylation.
0%
c) Formation of acrosome in sperm.
50%
d) Formation of vesicular bodies.

Explanation

Q.37.

on Q226) Select the correct match of the types of neuron present in column I with its location given in column II.

Column I	Column II
A. Centrioles	(i) Non-membrane bound organelle which helps in cell division
B. Fimbriae	(ii) Special structure of bacteria which help them to attach with rocks in stream and also to host tissue
C. Endomembrane	(iii) Includes those organelles system whose functions are coordinated
D. Mitochondria	(iv) Divide by fission and site of aerobic respiration

50%
a) A - (i), B - (ii), C - (iii), D - (iv)
0%
b) A - (iii), B - (i), C - (ii), D - (iv)
0%
c) A - (iii), B - (i), C - (iv), D - (ii)
50%
d) A - (i), B - (iv), C - (iii), D - (ii)

Explanation

Q.38.

on Q227) Which of the following is incorrect?

0%
a) Mycoplasma is the smallest cell (0.3 µm).
0%
b) Bacteria are 3 to 5 µm in size.
0%
c) The largest cell is the egg of an ostrich.
100%
d) Nerve cells are some of the smallest cells.

Explanation

Q.39.

on Q228) The best way to identify a cell as either prokaryotic or eukaryotic is to determine whether:

0%
a) It came from a single-celled or multicellular organism.
50%
b) It has a nucleus.
50%
c) It has a plasma membrane.
0%
d) It has cytosol.

Explanation

Q.40.

on Q229) Which one of the following pigments do not occur in the chlorophyll?

50%
a) Carotene.
0%
b) Chlorophyll b.
0%
c) Xanthophyll.
50%
d) Anthocyanin.

Explanation

Q.41.

on Q230) Identify the lysine rich histone protein:

0%
a) H1.
0%
b) H3.
0%
c) H4.
100%
d) All of these.

Explanation

Q.42.

on Q231) Large and more numerous nuclei are present in cell actively carrying out:

50%
a) Lipid synthesis.
50%
b) Protein synthesis.
0%
c) Vitamin synthesis.
0%
d) Carbohydrate synthesis.

Explanation

Q.43.

on Q232) Read the following statements: (i) Peroxisomes are involved in photorespiration of the non green cell of plants and also performs β - oxidation of fatty acids in animal cells. (ii) Mitochondria possess enzymes for the β - oxidation of fatty acids. (iii) The fluid - dynamic mosaic model of plasma membrane explains both structural and functional aspects. (iv) The movement of cilia and flagella is due to the presence dynein proteins. (v) Lysosomes originate from golgi apparatus. How many of the above statements are true:

0%
a) Two.
0%
b) Three.
50%
c) Four.
50%
d) Five.

Explanation

Q.44.

on Q234) Which of the following statements are true regarding glycocalyx? (i) Homopolysaccharide. (ii) Heteropolysaccharide. (iii) Capsule form found predominantly in parasitic bacteria. (iv) Slimy form found in all bacteria.

0%
a) (i) and (iii) only.
0%
b) (ii) and (iii) only.
50%
c) (i), (iii) and (iv) only.
50%
d) (ii), (iii) and (iv) only.

Explanation

Q.45.

on Q235) GERL concerned with the biogenesis of:

100%
a) Golgi body.
0%
b) ER.
0%
c) Mitochondria.
0%
d) Lysosome.

Explanation

Q.46.

on Q236) Factors which affect the size of cell include: (i) Nucleo cytoplasmic ratio. (ii) Rate of metabolism. (iii) Surface area to volume ratio.

67%
a) All of these are correct.
0%
b) None of these are correct.
33%
c) Only (i) and (ii) are correct.
0%
d) Only (iii) and (ii) are correct.

Explanation

Q.47.

on Q237) Which of the following statement is wrong regarding lysosomes?

50%
a) Cholesterol is a lysosome stabilizer, which makes autolysis.
0%
b) Vitamin K is lysosome labilizer, which makes breaking of membrane.
0%
c) Lysosomes contains hydrolytic enzymes.
50%
d) Lysosomes biogenesis is associated with GERL complex.

Explanation

Q.48.

on Q238) Lipochondria is:

0%
a) Mitochondria rich in lipids.
100%
b) Golgi complex rich in lipids.
0%
c) Lysosomes rich in lipid digesting enzymes.
0%
d) Ribosomes rich in lipids.

Explanation

Q.49.

on Q239) The plane of cell wall formation in a dividing cell is determined by:

100%
a) Golgi apparatus.
0%
b) Microtubules.
0%
c) Microfilaments.
0%
d) Endoplasmic reticulum.

Explanation

Q.50.

on Q240) Gas vacuoles allow cyanobacteria to:

0%
a) Store carbon dioxide for assimilation.
50%
b) Control their buoyancy.
50%
c) Provide anaerobic conditions to nitrogenase.
0%
d) Eliminate toxic ammonia.

Explanation

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