NEET Biology Cell The Unit of Life MCQs Set 25

Multiple Choice Questions (MCQs) for NEET Biology: Cell The Unit of Life

Access targeted multiple-choice questions for Cell The Unit of Life designed to align with the latest NEET academic syllabus for NEET Biology. These objective practice sets help students evaluate their conceptual understanding and improve exam readiness.

Practice Cell The Unit of Life MCQs for NEET Biology

Access the complete set of multiple-choice questions for Cell The Unit of Life below. This focused format allows students to isolate specific topics for thorough review and uninterrupted practice alongside official NEET textbooks.

Multiple Choice Questions

Question 1: In plants, the tonoplast facilitates the transport of a number of ions and other materials
(a) Against concentration gradient into vacuole
(b) Along concentration gradient into vacuole
(c) Along concentration gradient into gas vacuoles
(d) Against concentration gradient in contractile vacuole
Show Answer & Explanation

Answer: (a) Against concentration gradient into vacuole

Explanation:
1. Plant cells do not contain gas and contractile vacuole and movement of molecules across tonoplast is always against concentration gradient and require energy.

Question 2: Find the correct set of structures/organelles not surrounded by membrane.
(a) Ribosome, centrosome, lysosome
(b) Peroxisome, nucleolus, ribosome
(c) Ribosome, nucleolus, centriole
(d) Nucleolus, spherosome, ribosome
Show Answer & Explanation

Answer: (c) Ribosome, nucleolus, centriole

Explanation:
1. These are non-membranous cell structure.

Question 3: The larger sub-unit of a ribosome is found to contain 28S, 5.8S and 5S types of RNA. This ribosome is found in
(a) Bacterium
(b) Mitochondrion
(c) Animal cell
(d) Chloroplast
Show Answer & Explanation

Answer: (c) Animal cell

Explanation:
1. This is so because they are rRNA of 80S → 60S.

Question 4: Organelle lacking DNA, but capable of duplication is
(a) Ribosome
(b) Centriole
(c) Chloroplast
(d) Nucleus
Show Answer & Explanation

Answer: (b) Centriole

Explanation:
1. Centriole duplicates itself in cytoplasm during S phase.

Question 5: Each centriole has a cart wheel organisation having a whorl of tubulin fibrils at periphery. These peripheral fibrils are composed of how many microtubules?
(a) 11
(b) 18
(c) 9
(d) 27
Show Answer & Explanation

Answer: (d) 27

Explanation:
1. There are nine evenly spaced fibrils of tubulin and each fibril is made up three sub fibres. ∴ 9 × 3 = 27.

Question 6: Find out all the proteins that make eukaryotic flagellum.
(a) Nexin, tubulin and flagellin
(b) Tubulin, nexin, dynein and flagellin
(c) Actin, myosin, dynein, nexin and tubulin
(d) Dynein, tubulin and nexin
Show Answer & Explanation

Answer: (d) Dynein, tubulin and nexin

Explanation:
1. Flagellin } Prokaryotic flagella.
2. Dynein, Tubulin and Nexin } Eukaryotic flagella.

Question 7: Eukaryotic cells have a well organised nucleus and<br />a. Both 70S and 80S types of ribosomes<br />b. Flagella associated with 9 + 2 organisation<br />c. Shows cytoplasmic streaming<br />d. Their DNA is complexed with histones to constitute the chromatin
(a) All are correct
(b) Only a is incorrect
(c) Only c and d are correct
(d) Both b and c are incorrect
Show Answer & Explanation

Answer: (a) All are correct

Explanation:
1. All statements are correct for eukaryotic cells. 70S ribosomes are present in organelles.

Question 8: All the following statements are correct, except
(a) Peroxisomes are quite common in the photosynthetic cells. Their number can be 70 – 100 per mesophyll cell, wherein they interact with mitochondria and chloroplasts to take part in photorespiration
(b) Glyoxysomes are numerous in the endosperm of wheat
(c) The ER- bound ribosomes synthesise secretory membrane and lysosomal protein
(d) Ribosomes when associated with ER are attached with their 60S sub-unit
Show Answer & Explanation

Answer: (b) Glyoxysomes are numerous in the endosperm of wheat

Explanation:
1. Glyoxysomes are numerous in the endosperm of castor, peanuts etc.

Question 9: Catalase and urate oxidase enzymes are associated with the organelle which is also involved in
(a) Gluconeogenesis
(b) Photorespiration
(c) Glycolate oxidation
(d) More than one option is correct
Show Answer & Explanation

Answer: (d) More than one option is correct

Explanation:
1. Catalase and urate oxidase enzymes are associated with the organelle which is also involved in photorespiration and glycolate oxidation.

Question 10: In fluid mosaic model of plasma membrane
(a) Upper layer is non-polar and hydrophilic
(b) Upper layer is polar and hydrophobic
(c) Phospholipids form a bimolecular layer in middle part
(d) Proteins form a middle layer
Show Answer & Explanation

Answer: (c) Phospholipids form a bimolecular layer in middle part

Explanation:
1. Plasma membrane consist of lipid bilayer.

Question 11: Which of the following components provides sticky character to the bacterial cell?
(a) Cell wall
(b) Nuclear membrane
(c) Plasma membrane
(d) Glycocalyx
Show Answer & Explanation

Answer: (d) Glycocalyx

Explanation:
1. Sticky character of the bacterial wall is due to glycocalyx or slime layer.
2. This layer is rich in glycoproteins.

Question 12: Select the mismatch
(a) Gas vacuoles – Green bacteria
(b) Large central vacuoles – Animal cells
(c) Protists – Eukaryotes
(d) Methanogens – Prokaryotes
Show Answer & Explanation

Answer: (b) Large central vacuoles – Animal cells

Explanation:
1. Large central vacuole is present in plant cells.

Question 13: A cell organelle containing hydrolytic enzymes is
(a) Lysosome
(b) Microsome
(c) Ribosome
(d) Mesosome
Show Answer & Explanation

Answer: (a) Lysosome

Explanation:
1. The isolated lysosomal vesicles have been found to be very rich in almost all types of hydrolytic enzymes.

Question 14: Mitochondria and chloroplast are<br />(a) semi-autonomous organelles<br />(b) formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery Which one of the following options is correct?
(a) Both (a) and (b) are false
(b) Both (a) and (b) are correct
(c) (b) is true but (a) is false
(d) (a) is true but (b) is false
Show Answer & Explanation

Answer: (d) (a) is true but (b) is false

Explanation:
1. Mitochondria and chloroplast are semi-autonomous organelles which contains DNA, RNA, ribosomes (705) etc.

Question 15: Microtubules are the constituents of
(a) Centrosome, Nucleosome and Centrioles
(b) Cilia, Flagella and Peroxisomes
(c) Spindle fibres, Centrioles and Cilia
(d) Centrioles, Spindle fibres and Chromatin
Show Answer & Explanation

Answer: (c) Spindle fibres, Centrioles and Cilia

Explanation:
1. Microtubules are structures present in cilia, flagella, centrioles and spindle fibres.

Question 16: Which one of the following cell organelles is enclosed by a single membrane?
(a) Nuclei
(b) Mitochondria
(c) Chloroplasts
(d) Lysosomes
Show Answer & Explanation

Answer: (d) Lysosomes

Explanation:
1. Nuclei, mitochondria and chloroplasts are double membrane bound organelles.
2. Lysosomes are single membrane bound organelle.

Question 17: Cellular organelles with membranes are
(a) Lysosomes, Golgi apparatus and mitochondria
(b) Nuclei, ribosomes and mitochondria
(c) Chromosomes, ribosomes and endoplasmic reticulum
(d) Endoplasmic reticulum, ribosomes and nuclei
Show Answer & Explanation

Answer: (a) Lysosomes, Golgi apparatus and mitochondria

Explanation:
1. Lysosomes, Golgi apparatus and mitochondria are membrane bound organelles.

Question 18: A protoplast is a cell
(a) Without cell wall
(b) Without plasma membrane
(c) Without nucleus
(d) Undergoing division
Show Answer & Explanation

Answer: (a) Without cell wall

Explanation:
1. Plant cell — Cell wall = Protoplast.

Question 19: Chromatophores take part in :
(a) Respiration
(b) Photosynthesis
(c) Growth
(d) Movement
Show Answer & Explanation

Answer: (b) Photosynthesis

Explanation:
1. Chromatophores are photosynthetic apparatus in prokaryotes.

Question 20: The structures that help some bacteria to attach to rocks and /or host tissues are :
(a) Holdfast
(b) Rhizoids
(c) Fimbriae
(d) Mesosomes
Show Answer & Explanation

Answer: (c) Fimbriae

Explanation:
1. Fimbriae - Hollow tubular surface appendages, present in bacterial cell, which help in attachment to rocks and/or host tissues.

Question 21: Match the columns and identify the correct option<br />Column I Column II<br />(a) Thylakoids (i) Disc-shaped sacs in Golgi apparatus<br />(b) Cristae (ii) Condensed structure of DNA<br />(c) Cisternae (iii) Flatmembranous sacs in stroma<br />(d) Chromatin (iv) Infoldings in mitochondria
(a) a(iii), b(iv), c(ii), d(i)
(b) a(iv), b(iii), c(i), d(ii)
(c) a(iii), b(iv), c(i), d(ii)
(d) a(iii), b(i), c(iv), d(ii)
Show Answer & Explanation

Answer: (c) a(iii), b(iv), c(i), d(ii)

Explanation:
1. Thylakoids – Flat membranous sacs in stroma of chloroplast.
2. Cristae – Infoldings in mitochondria Cisternae – Disc-shaped sacs in golgi-apparatus Chromatin – Condensed structure of DNA.

Question 22: In photosynthesis, the light-independent reactions take place at
(a) Stromal matrix
(b) Thylakoid lumen
(c) Photosystem I
(d) Photosystem II
Show Answer & Explanation

Answer: (a) Stromal matrix

Explanation:
1. Light-independent reactions or Dark reactions occur in stroma/ stromal matrix.
2. During these reactions carbon dioxide is reduced to carbohydrates.

Question 23: Nuclear envelope is a derivative of
(a) Rough endoplasmic reticulum
(b) Smooth endoplasmic reticulum
(c) Membrane of Golgi complex
(d) Microtubules
Show Answer & Explanation

Answer: (a) Rough endoplasmic reticulum

Explanation:
1. This option, Rough endoplasmic reticulum, is the one that agrees with the standard NCERT facts for this topic.

Question 24: True nucleus is absent in
(a) Volvox
(b) Anabaena
(c) Mucor
(d) Vaucheria
Show Answer & Explanation

Answer: (b) Anabaena

Explanation:
1. This option, Anabaena, is the one that agrees with the standard NCERT facts for this topic.

Free study material for Biology

Practice MCQs for NEET Biology Cell The Unit of Life

NEET Biology Cell The Unit of Life Objective Test Questions

Test your conceptual understanding of Cell The Unit of Life with these targeted multiple-choice questions. Designed in alignment with the latest NEET curriculum for NEET Biology, these problem sets build accuracy and prepare students for objective exams.

NCERT-Aligned Objective Questions and Solutions

Cross-reference your completed choices with comprehensive NCERT solutions for NEET Biology to ensure absolute clarity across all sub-topics in this chapter.

Next Steps in Your Exam Preparation

Wrap up your chapter revision by testing your knowledge against standard question formats. Everything on our platform is provided free of charge.

FAQs

Where can I access latest NEET Biology Cell The Unit of Life MCQs Set 25?

You can get most exhaustive NEET Biology Cell The Unit of Life MCQs Set 25 for free on StudiesToday.com. These MCQs for NEET Biology are updated for the 2026-27 academic session as per NEET examination standards.

Are Assertion-Reasoning and Case-Study MCQs included in the Biology NEET material?

Yes, our NEET Biology Cell The Unit of Life MCQs Set 25 include the latest type of questions, such as Assertion-Reasoning and Case-based MCQs. 50% of the NEET paper is now competency-based.

How do practicing Biology MCQs help in scoring full marks in NEET exams?

By solving our NEET Biology Cell The Unit of Life MCQs Set 25, NEET students can improve their accuracy and speed which is important as objective questions provide a chance to secure 100% marks in the Biology.

Do you provide answers and explanations for NEET Biology Cell The Unit of Life MCQs Set 25?

Yes, Biology MCQs for NEET have answer key and brief explanations to help students understand logic behind the correct option as its important for 2026 competency-focused NEET exams.

Can I practice these Biology NEET MCQs online?

Yes, you can also access online interactive tests for NEET Biology Cell The Unit of Life MCQs Set 25 on StudiesToday.com as they provide instant answers and score to help you track your progress in Biology.