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Chapters
Chapter 2: Biological Classification
Chapter 3: Plant Kingdom
Chapter 4: Animal Kingdom
Chapter 5: Morphology of Flowering Plants
Chapter 6: Anatomy of Flowering Plants
Chapter 7: Structural Organisation in Animals
Chapter 8: Cell: The Unit of Life
Chapter 9: Biomolecules
Chapter 10: Cell Cycle and Cell Division
Chapter 11: Transport in Plants
Chapter 12: Mineral Nutrition
Chapter 13: Photosynthesis in Higher Plants
Chapter 14: Respiration in Plants
Chapter 15: Plant Growth and Development
Chapter 16: Digestion and Absorption
Chapter 17: Breathing and Exchange of Gases
Chapter 18: Body Fluids and Circulation
Chapter 19: Excretory Products and their Elimination
Chapter 20: Locomotion and Movement
Chapter 21: Neural Control and Coordination
Chapter 22: Chemical Coordination and Integration
Solutions for Chapter 8: Cell: The Unit of Life
Below listed, you can find solutions for Chapter 8 of CBSE, Karnataka Board PUC NCERT for Class 11 Biology.
NCERT solutions for Class 11 Biology Chapter 8 Cell: The Unit of Life Exercises [Page 141]
Which of the following is not correct?
(a) Robert Brown discovered the cell.
(b) Schleiden and Schwann formulated the cell theory.
(c) Virchow explained that cells are formed from pre-existing cells.
(d) A unicellular organism carries out its life activities within a single cell.
New cells generate from
(a) bacterial fermentation
(b) regeneration of old cells
(c) pre-existing cells
(d) abiotic materials
Match the following
| Column I | Column II | ||
| a | Cristae | 1 | Flat membranous sacs in stroma |
| b | Cisternae | 2 | Infoldings in mitochondria |
| c | Thylakoids | 3 | Disc-shaped sacs in Golgi apparatus |
Which of the following is correct:
(a) Cells of all living organisms have a nucleus.
(b) Both animal and plant cells have a well defined cell wall.
(c) In prokaryotes, there are no membrane bound organelles.
(d) Cells are formed de novo from abiotic materials.
What is a mesosome in a prokaryotic cell? Mention the functions that it performs.
How do neutral solutes move across the plasma membrane? Can the polar molecules also move across it in the same way? If not, then how are these transported across the membrane?
Name two cell-organelles that are double membrane bound. What are the characteristics of these two organelles? State their functions and draw labelled diagrams of both?
Multicellular organisms have division of labour. Explain.
Cell is the basic unit of life. Discuss in brief.
What are nuclear pores? State their function.
Both lysosomes and vacuoles are endomembrane structures, yet they differ in terms of their functions. Comment.
Describe the structure of the following withthe help of labelled diagrams
Nucleus
Describe the structure of the following withthe help of labelled diagrams.
Centrosome
What is a centromere?
How does the position of centromere form the basis of classification of chromosomes. Support your answer with a diagram showing the position of centromere on different types of chromosomes.
Solutions for Chapter 8: Cell: The Unit of Life
NCERT solutions for Class 11 Biology chapter 8 - Cell: The Unit of Life
Shaalaa.com has the CBSE, Karnataka Board PUC Mathematics Class 11 Biology CBSE, Karnataka Board PUC solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. NCERT solutions for Mathematics Class 11 Biology CBSE, Karnataka Board PUC 8 (Cell: The Unit of Life) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
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Concepts covered in Class 11 Biology chapter 8 Cell: The Unit of Life are Cell Theory, Structure of Prokaryotic and Eukaryotic Cells, Endomembrane System, Mitochondria, Plastids, Ribosomes, Cilia and Flagella, Centrosome and Centrioles, Cytoskeleton, Nucleus, Microbodies, Plant Cell and Animal Cell, Overview of Cell, Prokaryotic Cells, Cell Envelope and Its Modifications, Ribosomes and Inclusion Bodies, Cell Membrane, Cell Wall, Cell: the Fundamental Unit of Life, The Invention of the Microscope and the Discovery of Cell, Organisms Show Variety in Cell Number, Shape and Size, Structure and Functions of Cell Envelope, Cell Membrane, Cell Wall, Cell Organelles.
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