Download NEET MCQs for NEET Biology: Cell The Unit of Life
Review structured MCQ sets for NEET Biology Cell The Unit of Life. Built according to official NEET guidelines, these downloadable questions support daily revision and core concept reinforcement.
Chapter-wise Objective Questions: Cell The Unit of Life
Navigate directly to the 50 objective questions for Cell The Unit of Life using the digital viewer below. Each practice set includes verified answer keys, allowing students to instantly cross-check their work and identify areas requiring further revision.
Multiple Choice Questions
(a) Paramecium
(b) Euglenoids
(c) fungi
(d) Amoeba
Show Answer & Explanation
Answer: (b) Euglenoids
Explanation:
1. Euglena is a protist with chloroplasts, so plastids are not restricted to plants.
Teacher's Note:
1. Fungi lack plastids.
2. Revisit the NCERT diagram for this part.
(a) oils and fats
(b) proteins
(c) starch
(d) chlorophyll
Show Answer & Explanation
Answer: (b) proteins
Explanation:
1. Amyloplasts store starch (potato), elaioplasts store oils and fats, and aleuroplasts store proteins.
Teacher's Note:
1. Match prefix with substance: amylo-starch, elaio-oil, aleuro-protein.
2. Revisit the NCERT diagram for this part.
(a) cristae
(b) stroma lamellae
(c) cisternae
(d) grana
Show Answer & Explanation
Answer: (d) grana
Explanation:
1. Stroma lamellae are the flat membranous tubules that connect the thylakoids of different grana.
Teacher's Note:
1. Grana, stroma and lamellae form the internal structure.
2. Revisit the NCERT diagram for this part.
(a) Robert Hooke (1665)
(b) Camillo Golgi (1898)
(c) Anton von Leeuwenhoek (1674)
(d) George Palade (1953)
Show Answer & Explanation
Answer: (d) George Palade (1953)
Explanation:
1. Palade described them as dense granules; they are made of RNA and proteins and are not membrane bound.
Teacher's Note:
1. Ribosomes: 70S in prokaryotes, 80S in eukaryotes.
2. Revisit the NCERT diagram for this part.
(a) a network of filamentous proteinaceous structures in the cytoplasm that provides mechanical support and motility
(b) a layer of cellulose outside the plasma membrane
(c) made of phospholipids
(d) a part of the nuclear envelope
Show Answer & Explanation
Answer: (a) a network of filamentous proteinaceous structures in the cytoplasm that provides mechanical support and motility
Explanation:
1. The cytoskeleton helps maintain cell shape, motility and movement of organelles.
Teacher's Note:
1. Microtubules, microfilaments and intermediate filaments make it up.
2. Revisit the NCERT diagram for this part.
(a) microtubules with 9+2 pattern
(b) nine evenly spaced peripheral fibrils of tubulin, each a triplet, with a central hub
(c) a single circular DNA molecule
(d) nine doublets and two central tubules
Show Answer & Explanation
Answer: (b) nine evenly spaced peripheral fibrils of tubulin, each a triplet, with a central hub
Explanation:
1. The fibrils are joined to the hub by radial spokes (cartwheel organisation); centrioles also form the basal bodies of cilia and flagella.
Teacher's Note:
1. Do not mix up centriole (9+0 triplets) with axoneme (9+2).
2. Revisit the NCERT diagram for this part.
(a) Mendel
(b) Flemming
(c) Waldeyer
(d) Robert Brown
Show Answer & Explanation
Answer: (b) Flemming
Explanation:
1. Robert Brown described the nucleus; Flemming gave the name chromatin for the stainable material.
Teacher's Note:
1. Chromatin is the extended nucleoprotein fibre of the interphase nucleus.
2. Revisit the NCERT diagram for this part.
(a) transport of lipids
(b) movement of RNA and proteins between the nucleus and the cytoplasm
(c) only exit of DNA
(d) only entry of ions
Show Answer & Explanation
Answer: (b) movement of RNA and proteins between the nucleus and the cytoplasm
Explanation:
1. The nuclear envelope is a double membrane with pores; its outer membrane is continuous with the ER and bears ribosomes.
Teacher's Note:
1. The perinuclear space lies between the two membranes.
2. Revisit the NCERT diagram for this part.
(a) is bounded by a double membrane
(b) is the site of DNA replication only
(c) is a non-membrane bound structure where ribosomal RNA is actively synthesised
(d) contains the genes for lipid synthesis
Show Answer & Explanation
Answer: (c) is a non-membrane bound structure where ribosomal RNA is actively synthesised
Explanation:
1. Nucleoli are larger and more numerous in cells actively synthesising proteins.
Teacher's Note:
1. The nucleolus is continuous with the nucleoplasm.
2. Revisit the NCERT diagram for this part.
(a) RNA and carbohydrates only
(b) DNA and lipids only
(c) only histone proteins
(d) DNA, basic histone proteins, non-histone proteins and also RNA
Show Answer & Explanation
Answer: (d) DNA, basic histone proteins, non-histone proteins and also RNA
Explanation:
1. Chromatin is condensed into chromosomes during cell division.
Teacher's Note:
1. Histones are rich in basic amino acids.
2. Revisit the NCERT diagram for this part.
(a) 46 chromosomes (23 pairs)
(b) 48 chromosomes
(c) 92 chromosomes
(d) 23 chromosomes
Show Answer & Explanation
Answer: (a) 46 chromosomes (23 pairs)
Explanation:
1. The DNA is packed with histones into chromatin and then into chromosomes.
Teacher's Note:
1. Compare: the nucleus is only a few micrometres wide.
2. Revisit the NCERT diagram for this part.
(a) acrocentric
(b) telocentric
(c) metacentric
(d) sub-metacentric
Show Answer & Explanation
Answer: (a) acrocentric
Explanation:
1. Metacentric has a middle centromere, sub-metacentric slightly off middle, acrocentric close to the end and telocentric terminal.
Teacher's Note:
1. Position of the centromere decides the type.
2. Revisit the NCERT diagram for this part.
(a) in the middle
(b) terminal
(c) close to one end but not at it
(d) slightly away from the middle
Show Answer & Explanation
Answer: (b) terminal
Explanation:
1. A telocentric chromosome therefore has only one arm.
Teacher's Note:
1. Humans have no telocentric chromosomes.
2. Revisit the NCERT diagram for this part.
(a) kinetochore
(b) chromomere
(c) telomere
(d) satellite
Show Answer & Explanation
Answer: (d) satellite
Explanation:
1. Chromosomes with satellites are called SAT chromosomes; the secondary constriction is often the nucleolar organiser region.
Teacher's Note:
1. Kinetochores are on the sides of the primary constriction (centromere).
2. Revisit the NCERT diagram for this part.
(a) all five kingdoms
(b) Monera only
(c) Monera and Protista
(d) Protista, Plantae, Fungi and Animalia
Show Answer & Explanation
Answer: (d) Protista, Plantae, Fungi and Animalia
Explanation:
1. Four of the five kingdoms are eukaryotic; Monera (bacteria) is prokaryotic.
Teacher's Note:
1. Five kingdom classification of Whittaker.
2. Revisit the NCERT diagram for this part.
(a) Plasma membrane
(b) Mesosome
(c) Capsule
(d) Cell wall
Show Answer & Explanation
Answer: (d) Cell wall
Explanation:
1. The cell wall prevents bursting or collapsing; the four basic shapes are bacillus, coccus, vibrio and spirillum.
Teacher's Note:
1. Mycoplasma lacks this wall.
2. Revisit the NCERT diagram for this part.
(a) spirillum
(b) vibrio
(c) bacillus
(d) coccus
Show Answer & Explanation
Answer: (b) vibrio
Explanation:
1. Bacillus is rod-like, coccus spherical, vibrio comma-shaped and spirillum spiral.
Teacher's Note:
1. Vibrio cholerae is a classic example.
2. Revisit the NCERT diagram for this part.
(a) nuclear pores
(b) storage granules
(c) flagella-like structures
(d) membranous extensions into the cytoplasm that contain pigments
Show Answer & Explanation
Answer: (d) membranous extensions into the cytoplasm that contain pigments
Explanation:
1. They are the photosynthetic membranes of prokaryotes.
Teacher's Note:
1. Chloroplasts are the eukaryotic equivalents.
2. Revisit the NCERT diagram for this part.
(a) Cell wall
(b) Cytoplasm
(c) Nucleus
(d) Nucleolus
Show Answer & Explanation
Answer: (b) Cytoplasm
Explanation:
1. The cytoplasm contains organelles and cytosol where most metabolic reactions occur.
Teacher's Note:
1. Membranes and the nucleus control and compartmentalise the cell.
2. Revisit the NCERT diagram for this part.
(a) forms outside the middle lamella only
(b) cannot grow and is made of lignin only
(c) is absent from mature plant cells
(d) is capable of growth, whereas the secondary wall forms on the inner side of the cell
Show Answer & Explanation
Answer: (d) is capable of growth, whereas the secondary wall forms on the inner side of the cell
Explanation:
1. The primary wall is capable of growth and diminishes in thickness as the cell matures; the secondary wall is laid down inside it.
Teacher's Note:
1. Secondary walls give additional strength.
2. Revisit the NCERT diagram for this part.
(a) cellulose, galactans, mannans and minerals like calcium carbonate
(b) chitin and murein
(c) peptidoglycan only
(d) only lignin
Show Answer & Explanation
Answer: (a) cellulose, galactans, mannans and minerals like calcium carbonate
Explanation:
1. In other plants the wall is made of cellulose, hemicellulose, pectins and proteins.
Teacher's Note:
1. Fungal cell walls contain chitin.
2. Revisit the NCERT diagram for this part.
(a) lysosomes
(b) vacuoles
(c) Golgi complex
(d) peroxisomes
Show Answer & Explanation
Answer: (d) peroxisomes
Explanation:
1. Mitochondria, chloroplasts and peroxisomes are not part of the endomembrane system.
Teacher's Note:
1. Endomembrane organelles exchange vesicles.
2. Revisit the NCERT diagram for this part.
(a) cells never divide
(b) all cells are of the same size
(c) anything less than a complete structure of a cell does not ensure independent living
(d) only plant cells are alive
Show Answer & Explanation
Answer: (c) anything less than a complete structure of a cell does not ensure independent living
Explanation:
1. The cell is the fundamental structural and functional unit of all living organisms; unicellular organisms perform all essential functions of life within one cell.
Teacher's Note:
1. Viruses are not cells and cannot live independently.
2. Revisit the NCERT diagram for this part.
Practice MCQs for NEET Biology Cell The Unit of Life
NEET Biology Cell The Unit of Life Objective Test Questions
Review structured objective questions for NEET Biology Cell The Unit of Life. Built according to official NEET guidelines, these MCQ sets support daily revision and core concept reinforcement.
NCERT-Aligned Objective Questions and Solutions
Each question includes structured solution keys mapped directly to standard NEET textbooks, helping students evaluate their reasoning and correct mistakes early in their revision.
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FAQs
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