NCERT Solutions for Class 11 Biology Chapter 8 – Cell: The Unit of Life

NCERT-Solutions-For-Class-11-Biology-Chapter-8-Cell-The-Unit-of-Life

NCERT Solutions for Class 11 Biology Chapter 8 is considered as appropriate study material for the students who want to score good marks in the exams. In Class 11 Biology Chapter 8 NCERT Solutions, the students will learn about cells, the composition of cells, & more.

These Solutions provide answers to all the exercise questions that are available in the NCERT textbook.

NCERT Solutions for Class 11 Biology Chapter 8 – Cell: The Unit of Life

NCERT Solutions for Class 11 Biology Chapter 8 pdf are very useful for students in the preparations for their final exams. These Solutions provide in-depth understanding of concepts, practice and revision to score well in the exams. These strengthen the foundation of the students in the biology subject and also provide them the capability to write answer of any types of questions easily.

Class 11 Biology Chapter 8 NCERT Solutions provide detailed Solutions for all questions covered in the NCERT textbook according to the latest CBSE marking scheme pattern and syllabus. These Solutions assist the students to understand the topics well so that they remember the concept in higher classes too.

You can download CBSE NCERT Solutions for Class 11 Biology Chapter 8 from below.

Download NCERT Class 11 Biology Chapter 8 Solutions

What will you learn in NCERT Class 11 Biology Chapter 8?

In Class 11 Biology Chapter 8, the students will study about the cell structure. There are two broad groups of classification in this chapter as eukaryotes and prokaryotes. They will study that the cell consists of different constituents & some of which are absent in plant cell & some are absent in an animal cell.

Class 11 biology Chapter 8 Solutions enable the students to study about plant cells that have a cell wall outside the cell membrane. The Solutions are to the point and easily understandable & present with diagrams wherever necessary that enables the students to study quickly.

The solutions are considered as handy study material for practice and revision during exams. Class 11 Biology Chapter 8 pdf download is a one-stop solution for all the queries of the students related to Biology subject which is prepared by the experts so that the students can score high ranks. 

CBSE Class 11 Biology Chapter 8 Solutions cover the following exercises:

  • Exercise 8.1 – What is a cell?
  • Exercise 8.2 – Cell theory
  • Exercise 8.3 – An overview of cell
  • Exercise 8.4 – Prokaryotic cells
  • Exercise 8.5 – Eukaryotic cells

Benefits of chapter 8 – Cell: The Unit of Life Solutions

  • CBSE Class 11 Biology Chapter 8 Solutions include all the fundamental concepts & tables and diagrams wherever necessary
  • The Solutions are explained in an easy and simple manner
  • Class 11 Biology Chapter 8 Solutions are prepared by the subject matter experts
  • The students can easily download the pdf & access it anytime & anywhere.

Important Notes On Cell: The Unit Of Life

1. Modification of cell envelope

2. Slime layer: Clycocalyx in form of loose sheath.

3. Capsule: Glycocalyx in form of thick and tough sheath.

4. Mesosomes: Extension of plasma membrane. These can be in the form of vesicles, tubules and lamellae.

GENETIC MATERIAL

1. It is not covered by nuclear envelope. In addition to the genomic DNA (the single chromosome/circular DNA), many bacteria have small circular self-replicating, double stranded DNA which is called as plasmid, plasmid contain genes like antibiotic resistance.

2. Cell Membrane-Singer and Nicolson (1972) gave fluid mosaic model.

According to this the quasi-fluid nature of lipid enables lateral movement of proteins within the overall bilayer; two types of proteins (Peripheral and integral proteins) with cholesterol, glycolipids and glycoproteins. Erythrocyte membrane has 52% protein and 40% lipids.

Cell Wall

1. It is non-living rigid structure which gives shape to the cell and protects cell from mechanical damage and infection, helps in cell-to-cell interaction and provides barrier to undesirable macromolecules.

2. Cell wall of algae is made of cellulose, galactans, mannans and minerals like calcium carbonate. Plant cell wall consists of cellulose, hemicellulose, pectins and proteins.

GOLGI APPARATUS

1. First observed by Camillo Golgi (in 1898)

2. Consist of cisternae stacked parallel to each other. Two faces of the organelle are convex/cis or forming face and concave/trans or maturing face.

3. Functions: Performs packaging of materials, to be delivered either to the intra-cellar targets or secreted outside the cell. Important site of formation of glycoproteins and glycolipids.

Lysosomes

1. Membrane bound vesicular structures formed by the process of packaging in the golgi apparatus. Contain hydrolysing enzymes (lipases, proteases, carbohydrates) which are active in acidic pH. Also called Suicidal Bag.

2. Function: Intracellular digestion.

We have covered the complete guide on CBSE NCERT Solutions for Class 11 Biology Chapter 8 – Cell: The Unit of Life. Feel free to ask us any questions in the comment section below.

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