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Chapters
1: The Living World
2: Biological Classification
3: Plant Kingdom
4: Animal Kingdom
UNIT II : STRUCTURAL ORGANISATION IN PLANTS AND ANIMALS
5: Morphology of Flowering Plants
6: Anatomy of Flowering Plants
7: Structural Organisation in Animals
UNIT III : CELL : STRUCTURE AND FUNCTIONS
▶ 8: Cell: The Unit of Life
9: Biomolecules
10: Cell Cycle and Cell Division
UNIT IV : PLANT PHYSIOLOGY
11: Photosynthesis in Higher Plants
12: Respiration in Plants
13: Plant Growth and Development
UNIT V : HUMAN PHYSIOLOGY
14: Breathing and Exchange of Gases
15: Body Fluids and Circulation
16: Excretory Products and their Elimination
17: Locomotion and Movement
18: Neural Control and Coordination
19: Chemical Coordination and Integration
![NCERT solutions for Biology [English] Class 11 chapter 8 - Cell: The Unit of Life - Shaalaa.com](/images/biology-english-class-11_6:90c1d99b6e7241348bfa9c22a43c2fb8.jpg "NCERT solutions for Biology [English] Class 11 chapter 8 - Cell: The Unit of Life")
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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 Biology [English] Class 11.
NCERT solutions for Biology [English] Class 11 8 Cell: The Unit of Life EXERCISES [Page 103]
Which of the following is not correct?
Robert Brown discovered the cell.
Schleiden and Schwann formulated the cell theory.
Virchow explained that cells are formed from pre-existing cells.
A unicellular organism carries out its life activities within a single cell.
New cells generate from ______.
Bacterial fermentation
Regeneration of old cells
Pre-existing cells
Abiotic materials
Match the following:
| Column I | Column II | ||
| (a) | Cristae | (i) | Flat membranous sacs in stroma |
| (b) | Cisternae | (ii) | Infoldings in mitochondria |
| (c) | Thylakoids | (iii) | Disc-shaped sacs in Golgi apparatus |
Which of the following is correct?
Cells of all living organisms have a nucleus.
Both animal and plant cells have a well-defined cell wall.
In prokaryotes, there are no membrane-bound organelles.
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?
What are the characteristics of prokaryotic cells?
Multicellular organisms have division of labour. Explain.
Cell is the basic unit of life. Discuss in brief.
What are nuclear pores?
Explain the functions of the nuclear pores.
Both lysosomes and vacuoles are endomembrane structures, yet they differ in terms of their functions. Comment.
Describe the structure of the following with the help of labelled diagram.
Nucleus
Describe the structure of the following with the help of a labelled diagram.
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 8: Cell: The Unit of Life
NCERT solutions for Biology [English] Class 11 chapter 8 - Cell: The Unit of Life
Shaalaa.com has the CBSE, Karnataka Board PUC Mathematics Biology [English] Class 11 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 Biology [English] Class 11 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 Biology [English] Class 11 chapter 8 Cell: The Unit of Life are Cell: Structural and Functional Unit of Life, The Invention of the Microscope and the Discovery of Cell, Cell Theory, Overview of Cell, Organisms Show Variety in Cell Number, Shape and Size, Prokaryotic Cells, Cell Envelope and Its Modifications, Ribosomes and Inclusion Bodies, Structure of Prokaryotic and Eukaryotic Cells, Cell Membrane, Cell Wall, Endomembrane System, Mitochondria, Plastids, Ribosomes, Cilia and Flagella, Centrosome and Centrioles, Cytoskeleton, Nucleus, Microbodies, Plant Cell and Animal Cell, Structure and Functions of Cell Envelope, Cell Membrane, Cell Wall, Cell Organelles, Cell: Structural and Functional Unit of Life, The Invention of the Microscope and the Discovery of Cell, Cell Theory, Overview of Cell, Organisms Show Variety in Cell Number, Shape and Size, Prokaryotic Cells, Cell Envelope and Its Modifications, Ribosomes and Inclusion Bodies, Structure of Prokaryotic and Eukaryotic Cells, Cell Membrane, Cell Wall, Endomembrane System, Mitochondria, Plastids, Ribosomes, Cilia and Flagella, Centrosome and Centrioles, Cytoskeleton, Nucleus, Microbodies, Plant Cell and Animal Cell, Structure and Functions of Cell Envelope, Cell Membrane, Cell Wall, Cell Organelles.
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