Chapter 2 - Acids, Bases and Salts
Chapter 3 - Metals and Non-metals
Chapter 4 - Carbon and its Compounds
Chapter 5 - Periodic Classification of Elements
Chapter 6 - Life Processes
Chapter 7 - Control and Coordination
Chapter 8 - How do Organisms Reproduce
Chapter 9 - Heredity and Evolution
Chapter 10 - Light - Reflection and Refraction
Chapter 11 - Human Eye and Colourful World
Chapter 12 - Electricity
Chapter 13 - Magnetic Effects of Electric Current
Chapter 14 - Sources of Energy
Chapter 15 - Our Environment
Chapter 16 - Management of Natural Resources
Chapter 6 - Life Processes
Why is diffusion insufficient to meet the oxygen requirementsof multi-cellular organisms like humans
What criteria do we use to decide whether something is alive?
What are outside raw materials used for by an organism?
What processes would you consider essential for maintaining life?
Where do plants get each of the raw materials required for photosynthesis?
What is the role of the acid in our stomach?
How is the small intestine designed to absorb digested food?
What are the different ways in which glucose is oxidized to provide energy in various organisms?
How is oxygen and carbon dioxide transported in human beings?
How are the lungs designed in human beings to maximize the area for exchange of gases?
What are the components of the transport system in human beings? What are the functions of these components?
Why is it necessary to separate oxygenated and deoxygenated blood in mammals and birds?
What are the components of the transport system in highly organised plants?
How are water and minerals transported in plants?
How is food transported in plants?
Describe the structure and functioning of nephrons
What are the methods used by plants to get rid of excretory products?
How is the amount of urine produced regulated?
The kidneys in human beings are a part of the system for
The xylem in plants are responsible for
(a) transport of water.
(b) transport of food.
(c) transport of amino acids.
(d) transport of oxygen.
The autotrophic mode of nutrition requires
(a) carbon dioxide and water.
(d) all of the above.
The breakdown of pyruvate to give carbon dioxide, water and energy takes place in
How are fats digested in our bodies? Where does this process take place?
What is the role of saliva in the digestion of food?
What are the necessary conditions for autotrophic nutrition and what are its by-products?
What are the differences between aerobic and anaerobic respiration? Name some organisms that use the anaerobic mode of respiration.
How are the alveoli designed to maximise the exchange of gases?
What would be the consequences of a deficiency of haemoglobin in our bodies?
Describe double circulation in human beings. Why is it necessary?
Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning.