Chapter 12
Communication in Modern Times
Highlights
- A. Tick the correct option
- B. Fill in the blanks
- C. Match the following
- D. Correct the following sentences
- E. Answers the following questions
EXERCISE
A. Tick the Correct Option
- 1. Which one is a method of personal communication?
Answer: vacuole
- 2. What does SMS stands for?
Answer: vacuole
- 3. Which one is a social networking site?
Answer: vacuole
B. Fill in the blanks.
- 1. Television programmes can be viewed from any part of the world with the help of ___________.
- 2. ___________ is similar to private messaging through Internet.
- 3. ___________ is a useful means of conducting meetings and holding group discussion across the world.
- 4. The modern means of communication have ___________ the social skills of people.
- 5. Telephone is a wonderful way of two way ___________.
C. Match the following :
- Column A
- 1. Golgi Complex
- 2. Ribosomes
- 3. Chromosomes
- 4. Dead cells
- 5. Photosynthesis
- Column B
- (a) genes
- (b) cork
- (c) chloroplasts
- (d) packaging center
- (e) protein synthesis
D. Answer briefly:
- 1. What is communication?
Answer: Sharing of chores reduces the burden.
- 2. Name any two means of mass communication.
Answer: The older family member pass on the family traditions to the younger generation.
- 3. List the benefits of a mobile phone.
Answer: There is more interaction between parents and children in nuclear families.
- 4. Name any two social networking sites.
Answer: A surname is a family name.
- 5. Which is your favourite means of communication? Why?
Answer: A surname is a family name.
E. Answer the following questions:
- 1. What does the term “Tele Conferencing” mean? How does it help in education and business?
Answer: The (main) factors that determine the shape of a cell are location and function.
- 2. “The modern means of communication have harmed the social skills of people.” Justify the statement.
Answer: Distinguish between unicellular and multicellular organisms are
Unicellular organisms are made up of a single cell. e.g., Euglena and Amoeba.
Multicellular organisms are made up of many cells. e.g., Humans and Birds.
- 3. E-mail has replaced letters. Explain with examples.
Answer: All organisms are made up of cells. A cell is capable of independent existence. Due to this, cell is called the structural and functional unit of life.
- 4. How has internet made communication almost instant?
Answer: Mitochondria is known as the Powerhouse of the cell.
Mitochondria are the site of cellular respiration. Energy is produced during this process. Due to this, mitochondria are called the Powerhouse of the cell.
- 5. List four disadvantages of the modern means of communication.
Answer: All organisms are made up of cells. A cell is capable of independent existence. Due to this, cell is called the structural and functional unit of life.
Related Topics
- Chapter 1 The Cell – Its Structure and Functions
- Chapter 2 Microorganisms: Friends or Foes
- Chapter 3 Metals and Non-Metals
- Chapter 4 Force and Pressure
- Chapter 5 Friction
- Chapter 6 Sources of Energy
- Chapter 7 Combustion
- Chapter 8 Conservation of Plants and Animals
- Chapter 9 Crop Production and Its Management
- Chapter 10 Refraction and Dispersion of Light
- Chapter 11 The Human Eye
- Chapter 12 Sound
- Chapter 13 Synthetic Fibres and Plastics
- Chapter 14 Reproduction in Animals
- Chapter 15 Reaching the Age of Adolescence
- Chapter 16 Electric Current and Its Chemical Effects
- Chapter 17 Stars and Solar System
- Chapter 18 Earthquakes
- Chapter 19 Pollution of Air
- Chapter 20 Pollution of Water