Page No 95:
Question 1:
Why is diffusion insufficient to meet the oxygen requirementsof multi-cellular organisms like humans?
Page No 101:
Question 1:
What are the differences between autotrophic nutrition and heterotrophic nutrition?
Page No 101:
Question 2:
Where do plants get each of the raw materials required for photosynthesis?
Page No 105:
Question 1:
What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration?
Page No 105:
Question 2:
What are the different ways in which glucose is oxidized to provide energy in various organisms?
Page No 105:
Question 4:
How are the lungs designed in human beings to maximize the area for exchange of gases?
Page No 110:
Question 1:
What are the components of the transport system in human beings? What are the functions of these components?
Page No 110:
Question 2:
Why is it necessary to separate oxygenated and deoxygenated blood in mammals and birds?
Page No 110:
Question 3:
What are the components of the transport system in highly organised plants?
Page No 113:
Question 5:
How are fats digested in our bodies? Where does this process take place?
Page No 113:
Question 5:
How are fats digested in our bodies? Where does this process take place?
Page No 113:
Question 7:
What are the necessary conditions for autotrophic nutrition and what are its by-products?
Page No 113:
Question 8:
What are the differences between aerobic and anaerobic respiration? Name some organisms that use the anaerobic mode of respiration.
Page No 113:
Question 10:
What would be the consequences of a deficiency of haemoglobin in our bodies?
Page No 113:
Question 12:
What are the differences between the transport of materials in xylem and phloem?
