Chapter 21
Our Community Life Unity in Diversity
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. The smallest unit of community life is-
Answer: vacuole
- 2. It is very essential to keep the environment-
Answer: vacuole
- 3. Economic development has made villages and towns-
Answer: vacuole
- 4. Which one of the following festivals is not a harvesting festival?
Answer: vacuole
- 5. The Directive Principles of State Policy are helpful in achieving our national goal like-
Answer: vacuole
B. Fill in the blanks.
- 1. Several families living close to one another form a ___________.
- 2. Community life promotes a feeling of ___________.
- 3. Depending on one another is called ___________.
- 4. Education makes us a good ___________.
- 5. India is mainly a land of ___________.
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
C. Give one word answer to the following.
- 1. Name the first school of a child.
Answer: Sharing of chores reduces the burden.
- 2. Name the harvest festival of Tamil Nadu.
Answer: The older family member pass on the family traditions to the younger generation.
- 3. What makes the fulfilment of our needs possible?
Answer: There is more interaction between parents and children in nuclear families.
- 4. What forces the villagers to migrate to towns and cities?
Answer: A surname is a family name.
- 5. Which factor has diluted the impact of India’s economic progress?
Answer: A surname is a family name.
D. Answer the following questions in brief.
- 1. What values does our family inculcate in us?
Answer: The (main) factors that determine the shape of a cell are location and function.
- 2. How does school help us in our development?
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. How did economic interdependence begin in a community?
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. List any four essential services commonly required by rural as well as urban communities.
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. Name the main factors responsible for Green Revolution in India.
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.
E. Answer the following questions.
- 1. How did the ‘community life’ begin?
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.
- 2. How does the cultural exchange help in community development?
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.
- 3. Distinguish between the rural and urban communities.
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. Highlight the factors that make the city-life in India very difficult.
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.
- 5. State the provisions given in the Indian Constitution which aim at bringing equality.
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