In This Post we are providing Chapter-8 Cell: The Unit Of Life NCERT MCQ for Class 11 Biology which will be beneficial for students. These solutions are updated according to 2021-22 syllabus. These MCQS can be really helpful in the preparation of Board exams and will provide you with a brief knowledge of the chapter.
NCERT MCQ ON CELL: THE UNIT OF LIFE
Question 1 : Which one of the following combination is mismatched?
- a) Pili – Reproduction
- b) Cell wall – Protective, determines shape, prevents from bursting
- c) Flagella, Pili and Fimbriae – Surface structures of bacterial cell
- d) Glycocalyx – may be capsule or slime layer
Answer : Pili – Reproduction
Question 2 : The fluidity of membranes in a plant in cold weather may be maintained by
- a) increasing the number of phospholipids with unsaturated hydrocarbon tails
- b) increasing the proportion of integral proteins
- c) increasing concentration of cholesterol in membrane
- d) increasing the number of phospholipids with saturated hydrocarbon tail
Answer : increasing the number of phospholipids with unsaturated hydrocarbon tails
Question 3 : The cell as a basic unit of structure of living beings was discovered by
- a) Schleiden and Schwann
- b) Gregore Mendel
- c) Robert Hooke
- d) Aristotle
Answer : Schleiden and Schwann
Question 4 : Which pair of structures are usually found in both plant and animal cells?
- a) Cell membrane and nucleolus
- b) Cell membrane and cell wall
- c) Nucleolus and chloroplast
- d) Nucleus and cell wall
Answer : Cell membrane and nucleolus
Question 5: Most abundant lipid in the cell membrane is
- a) phospholipids
- b) cerebrosides
- c) glycolipids
- d) None of these
Answer : phospholipids
Question 6 : Cell recognition and adhesion are facilitated by components of plasma membrane. These components are generally
- a) glycolipids and glycoproteins
- b) both lipids and proteins
- c) protein molecules alone
- d) None of these
Answer : glycolipids and glycoproteins
Question 7 : Smooth endoplasmic reticulum is well developed in the cells which synthesize
- a) steorids
- b) carbohydrates
- c) proteins
- d) all of these
Answer : steorids
Question 8 : Quasi-fluid nature of membrane is due to
- a) Phospholipid
- b) Peripheral protein
- c) Integral protein
- d) Sugar moiety
Answer : Phospholipid
Question 9 : Gas vacuole is present in
- a) All of the above
- b) Green photosynthetic bacteria
- c) Purple photosynthetic bacteria
- d) Blue green algae
Answer : All of the above
Question 10 : Which of the following feature is not associated with centrosome?
- a) Lipid bilayer covering
- b) Two centriole
- c) Two cylindrical structures
- d) Pericentriolar material
Answer : Lipid bilayer covering
Question 11 : What is the site of DNA and centriole duplication respectively
- a) Nucleus, cytoplasm
- b) Nucleus, nucleus
- c) Cytoplasm, nucleus
- d) Nucleus, nucleolous
Answer : Nucleus, cytoplasm
Question 12 : Cell wall
- a) All are correct
- b) Contains minerals like calcium carbonate in certain algae
- c) Helps in cell to cell interaction
- d) Helps in cell to cell interaction
Answer : All are correct
Question 13 : Golgi bodies are involved in
- a) All of the above
- b) Modification of proteins
- c) Synthesis of glycolipids
- d) Recycling of broken plasma membrane during endocytosis
Answer : All of the above
Question 14: Aleuroplasts, amyloplasts and elaioplasts
- a) Store protein, starch and fat respectively
- b) Help in photolysis of water
- c) Store reserve food and pigments
- d) Divide by multiple fission
Answer : Store protein, starch and fat respectively
Question 15 : Reformation of nucleolus, golgi complex and ER occurs in
- a) Anaphase
- b) Metaphase
- c) Both
- d) None of these
Answer : Anaphase
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