Question 1 What is health? Question 2 What is a disease? Question 3 State the conditions essential for good health? Why do we fall ill Cells are fundamental units of living organism.They are made up of variety of chemical substances.Cells moves from place to place.Even if cell is not moving,in it repairing may go on. There are various specialised activities going … [Read more...] about Significance of health
Class 9
Diversity in living organism
Question 1 What is classification? Question 2 Define the term taxonomy? Question 3 What is the importance of classification? Question 4 Define the term genus? Question 5 Define the term species? Question 6 Enlist kingdoms of hierarchy of classification? Diversity in living organism The method of arranging organism into groups or sets on the basis of … [Read more...] about Diversity in living organism
Nervous tissue
Question 1 What are the function of nervous tissue? Question 2 Define the term neuron? Question 3 Explain the structure of nerve cell? Nervous Tissue They are highly specialised for being stimulated and then transmitting the stimulus very rapidly from one place to another. Brain,spinal cord,nerves are made up of nervous tissue. Nervous tissue contain unit cell … [Read more...] about Nervous tissue
Connective tissue
Question 1 Define connective tissue? Question 2 Enumerate various cells of connective tissue? Question 3 What are tendons? Question 4 What are ligaments? Question 5 What are cartilage? Question 6 What are the functions of blood? Question 7 What are the functions of areolar tissues? Question 8 What is the function of adipose tissue? Connective Tissue … [Read more...] about Connective tissue
Muscular tissue
Question 1 Name the protein present in muscle fibre?What is its function? Question 2 Why striated muscles are called as voluntary muscles? Question 3 What are the functions of striated muscles? Question 4 What are the functions of smooth muscles? Question 5 What are the functions of cardiac muscles? Question 6 What is the location of smooth muscles? Question 7 … [Read more...] about Muscular tissue
Tissue
Question 1 What is a tissue? Question 2 Write the different types of tissue in plants? Question 3 Name three types of simple tissue of plants? Question 4 Name two types of permanent tissue of plants? Tissue A group of cells similar in structure that work together to perform a particular function forms a tissue. For Ex:Nervous tissue(present in brain,spinal … [Read more...] about Tissue
Vacuoles
Question 1 What are vacuoles? Question 2 Explain the function of vacuoles? Vacuoles They are storage sacs for solid or liquid content.In animals cell,they are small and temporary.They store water,glycogen and proteins,single membrane maintain water balance. In plant cell they are large distinct and permanent.The vacuole is bounded by a membrane called Tonoplast. It … [Read more...] about Vacuoles
Fundamental units of life
Question 1 What is a cell? Question 2 What are unicellular organism.Give example? Question 3 What are multi cellular organism.Give example? Question 4 Who discovered cell? Fundamental Units Of Life Robert Hooke in 1665 discovered cell.He examined a thin slice of cork(substance which comes from bark of a tree)and found that cork resembled structure of honeycomb … [Read more...] about Fundamental units of life
Gravitation
Question 1 State the universal law of gravitation? Question 2 Define gravitation constant? Question 3 What is the value of G on earth and on the moon? Question 4 Which force is responsible for the moon revolving round the earth? Question 5 Describe how the gravitational force between two objects depends on the distance between them? Question 6 What happen to the … [Read more...] about Gravitation
Force
Question 1 Define the term force? Question 2 Define the term direction of force? Question 3 What are the various effects of force? Question 4 Give an example where a force stops a moving body? Question 5 Give an example where a force changes the shape of a body? Question 6 What do you understand by balanced forces.Give example? Question 7 What do you … [Read more...] about Force