Here, you will get Class 11 Biology MCQ of Chapter 8 Cell: The Unit Of Life for cracking NEET/AIIMS. By solving these MCQs of Class 11 Biology Chapter 8 Cell: The Unit Of Life, you will get the confidence to crack NEET. Practice MCQ Questions for Class 11 Biology with Answers on a daily basis and score well in exams.
Cell: The Unit Of Life Class 11 MCQs Questions with Answers
Bacterial flagella is made up of
(a) tubulin
(b) flagellin
(c) chitin
(d) None of these
Answer: (b) flagellin
Which one of the following also acts as a catalyst in a bacterial cell?
(a) 23 sr RNA
(b) 5 sr RNA
(c) sn RNA
(d) hn RNA
Answer: (a) 23 sr RNA
In eubacteria, a cellular component which resembles a eukaryotic cell is
(a) Ribosomes
(b) Plasma membrane
(c) Nucleus
(d) Cell wall
Answer: (b) Plasma membrane
Which of the following statements with reference to cytoskeleton is not correct?
(a) Cytoskeleton helps in motility
(b) Cytoskeleton maintains the shape of the cell
(c) Cytoskeleton helpful in production of ATP
(d) Cytoskeleton helpful in mechanical support
Answer: (c) Cytoskeleton helpful in production of ATP
Peroxysomes contain
(a) Hydrolytic enzyme
(b) Transferase
(c) Isomerase
(d) Oxidising enzyme (Oxidase)
Answer: (d) Oxidising enzyme (Oxidase)
The structure of plasma membrane fluid mosaic model is proposed by
(a) Gram
(b) Singer and Nicolson
(c) Schwann and Schleiden
(d) Robert brown
Answer: (b) Singer and Nicolson
Match the columns
1. Cytoskeleton – A. hair-like outgrowth
2. Flagella – B. proximal region of centriole
3. Hub – C. bristle-like structures
4. Fimbriae – D. filamentous protein structure
(a) 1-D, 2-A, 3-B, 4-C
(b) 1-D, 2-C, 3-B, 4-A
(c) 1-B, 2-D, 3-A, 4-C
(d) 1-D, 2-A, 3-C, 4-B
Answer: (a) 1-D, 2-A, 3-B, 4-C
The main site for synthesis of lipids is
(a) vacuoles
(b) RER
(c) SER
(d) Golgi body
Answer: (c) SER
Middle lamella is made up of
(a) calcium sulphide
(b) calcium pectate
(c) calcium carbonate
(d) calcium chloride
Answer: (b) calcium pectate
Which is called Suicidal Bag?
(a) Centrosome
(b) Lysosome
(c) Mesosome
(d) Chromosome
Answer: (b) Lysosome
The photograph or diagram of metaphasic chromosome arranged in homologous pair according to their length and thickness, position of centromere is called
(a) Karyogram
(b) Chromogram
(c) Idiogram
(d) None of these
Answer: (c) Idiogram
Tubulin occurs in
(a) Plasma membrane
(b) Golgi bodies
(c) Cilia and flagella
(d) All the above
Answer: (c) Cilia and flagella
Prokaryotic cells have which architectural regions?
(a) Cell
(b) Appendages
(c) Nucleus
(d) all of the above
Answer: (b) Appendages
The materials essential for the dark reaction are located in
(a) Circular-DNA
(b) Thylakoids
(c) Stroma
(d) Ribosomes
Answer: (b) Thylakoids
The unit of phloem in which the nucleus is absent
(a) Sieve cell
(b) Sieve tube
(c) Companion cell
(d) Phloem parenchyma
Answer: (b) Sieve tube
Keeping in view the fluid mosaic model for the structure of cell membrane, which one of the following statements is correct with respect to the movement of lipids and proteins from one lipid monolayer to the other (described as flip-flop movement)?
(a) Neither lipids, nor proteins can flip-flop
(b) Both lipids and proteins can flip-flop
(c) While lipids can rarely flip-flop, proteins can not
(d) While proteins can flip-flop, lipids can not
Answer: (c) While lipids can rarely flip-flop, proteins can not
Sphaerosome are involved in
(a) Synthesis and storage of lipid
(b) Synthesis of protein
(c) β–oxidation of fatty acids
(d) Synthesis and storage of carbohydrate
Answer: (a) Synthesis and storage of lipid
The eukaryotic ribosomes are of
(a) 50S
(b) 30S
(c) 80S
(d) 70S
Answer: (c) 80S
How much percent of vacuoles occupy the volume of the cell in plant cells?
(a) 80%
(b) 90%
(c) 50%
(d) 70%
Answer: (b) 90%
Cellular organelles with membranes are
(a) Chromosomes, ribosomes and endoplasmic reticulum
(b) The endoplasmic reticulum, ribosomes, and nuclei
(c) Lysosomes, Golgi apparatus and mitochondria
(d) Nuclei, ribosomes and mitochondria
Answer: (c) Lysosomes, Golgi apparatus and mitochondria
In each chromosome centromere possessing a disc-shaped structure is
(a) Satellite
(b) Kinetochore
(c) Long arm
(d) Short arm
Answer: (b) Kinetochore
Which organelle is not considered as a part of the Endomembrane system?
(a) Vacuole
(b) Chloroplast
(c) Endoplasmic reticulum
(d) Lysosome
Answer: (b) Chloroplast
Which is the biggest animal cell?
(a) Ostrich’s egg
(b) Hen’s egg
(c) PPLO
(d) Mycoplasma
Answer: (a) Ostrich’s egg
Which ion holds the ribosomal subunits together
(a) Ca+2
(b) Mn+2
(c) Mg+2
(d) Na+
Answer:(c) Mg+2
In which of the following cell centriole is absent?
(a) Epithelial cell
(b) Gland cell
(c) Liver cells
(d) Nerve cell
Answer: (d) Nerve cell
Cell secretion is done by
(a) Plastids
(b) ER
(c) Golgi apparatus
(d) Nucleolus
Answer: (c) Golgi apparatus
How many grana present in one chloroplast?
(a) 40-60
(b) 42-47
(c) 60-80
(d) 02-100
Answer: (a) 40-60
What is the main difference between active and passive transport?
(a) Active transport occurs by ATP
(b) Active transport occurs fast
(c) Energy is necessary for passive transport
(d) Passive transport is a non-selective transport
Answer: (a) Active transport occurs by ATP
Select which assertion is false
(a) Chloroplast and mitochondria both possess internal variation. Thylakoid lumen is not covered by the thylakoid membrane
(b) Chloroplast and mitochondria both possess DNA
(c) Chloroplast and mitochondria both possess external and internal membrane
(d) Normally chloroplast is larger than mitochondria
Answer: (a) Chloroplast and mitochondria both possess internal variation. The thylakoid lumen is not covered by the thylakoid membrane
Eukaryotic cells have what type of arrangement in their flagella?
(a) 9+2 Arrangement
(b) 2+9 Arrangement
(c) 7+2 Arrangement
(d) 9+0 Arrangement
Answer: (a) 9+2 Arrangement
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