Life Processes Worksheet-15

Life Processes Worksheet-15


  1. What is the principle of an artificial kidney?


  1. How are inspiration and expiration brought about in human beings?


  1. If one holds his breath after expiration for about 30 sec, would there still be occurring any exchange of respiratory gases in the lungs during this period? Explain.


  1. What is lymph? Mention its functions in our body.


  1. Name the various cells through which water moves upwards to reach the leaves.


  1. List the components of blood.


  1. Why are white blood corpuscles called 'soldiers' of the body?


  1. Name the four blood groups in human beings.


  1. What is the meaning of the term 'Double Circulation'?


  1. What happens to glucose which enters the nephron along with the filtrate?


  1. State the two vital functions of human kidney.


  1. What do you mean by translocation with respect to transport in plants?


  1. Which part of the human heart is considered as pace maker? Why is it so called?


  1. Describe the function of valves in the heart of man.


  1. Describe the location and the physical appearance of human kidney.


  1. How does blood flow in the veins?


  1. Differentiate between ureter and urethra.


  1. What are the functions of circulatory system?


  1. Why there is no mixing of deoxygenated and oxygenated blood in the human heart normally?


  1. Why does the left ventricle possess a thicker wall than the right ventricle?