Class 11 Exam  >  Class 11 Notes  >  Chapter 4 - cell : The Basic Unit of Life - PowerPoint Presentation, Science, class XI

Chapter 4 - cell : The Basic Unit of Life - PowerPoint Presentation, Science, class XI - Class 11 PDF Download

Download, print and study this document offline

Top Courses for Class 11

FAQs on Chapter 4 - cell : The Basic Unit of Life - PowerPoint Presentation, Science, class XI - Class 11

1. What is a cell and why is it considered the basic unit of life?
Ans. A cell is the basic structural and functional unit of all living organisms. It is considered the basic unit of life because every living organism is composed of one or more cells. Cells carry out all the necessary processes for life, such as metabolism, growth, and reproduction. They also have the ability to respond to their environment and maintain homeostasis.
2. How are cells classified?
Ans. Cells are classified into two main categories: prokaryotic cells and eukaryotic cells. Prokaryotic cells are simple cells that lack a nucleus and other membrane-bound organelles. They are found in bacteria and archaea. Eukaryotic cells, on the other hand, are more complex and have a nucleus and various organelles. They are found in animals, plants, fungi, and protists.
3. What are the different parts of a cell?
Ans. Cells have various parts called organelles, each with a specific function. Some of the important organelles include the nucleus, which contains the genetic material; the cytoplasm, where cellular processes occur; the cell membrane, which controls the movement of substances in and out of the cell; mitochondria, responsible for energy production; and the endoplasmic reticulum and Golgi apparatus, involved in protein synthesis and transport.
4. How do cells communicate with each other?
Ans. Cells communicate with each other through a process called cell signaling. This involves the release of chemical signals, such as hormones or neurotransmitters, which are detected by specific receptors on the surface of target cells. The signal is then transmitted into the cell, triggering a response. Cell signaling is important for coordinating processes within multicellular organisms and maintaining homeostasis.
5. How do cells reproduce?
Ans. Cells can reproduce through two main processes: mitosis and meiosis. Mitosis is the process by which cells divide to produce two identical daughter cells. It is involved in growth, tissue repair, and asexual reproduction. Meiosis, on the other hand, is a specialized form of cell division that occurs in reproductive cells. It produces four non-identical daughter cells, each with half the number of chromosomes as the parent cell. Meiosis is involved in sexual reproduction.
Download as PDF
Explore Courses for Class 11 exam

Top Courses for Class 11

Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

Summary

,

Chapter 4 - cell : The Basic Unit of Life - PowerPoint Presentation

,

Semester Notes

,

class XI - Class 11

,

mock tests for examination

,

class XI - Class 11

,

Science

,

Sample Paper

,

Science

,

ppt

,

Important questions

,

Free

,

pdf

,

video lectures

,

Chapter 4 - cell : The Basic Unit of Life - PowerPoint Presentation

,

Chapter 4 - cell : The Basic Unit of Life - PowerPoint Presentation

,

class XI - Class 11

,

shortcuts and tricks

,

Extra Questions

,

Science

,

Viva Questions

,

study material

,

practice quizzes

,

Previous Year Questions with Solutions

,

past year papers

,

Objective type Questions

,

MCQs

,

Exam

;