CBSE Guess > Papers > Important Questions > Class X > Science > Biology > Transportation and Excretion By :- Mr. Nagesh

Transportation and Excretion

1. Define the term Transportation?

a. Plants

1. What is transpiration? Give the term for the transfer of food from leaves to the other parts of the plant.
2. What is translocation? Why is it necessary for the Plant?
3. Explain briefly the components of the Xylem and Phloem tissues.
4. In which parts of the plant are sugars and hormones synthesized?

b. Animals

i. Heart:

1. Name the Blood vessel that brings the oxygenated blood to the Human heart. Which chamber of heart receives the oxygenated blood? Draw a well labeled diagram of human circulatory system.
2. Draw a diagram of Human Heart and label the following parts:
   a. Aorta b. Pulmonary trunk c. Superior Venacava d. Coronary Artery
3. Give the differences between Arteries, Veins and Capillaries.
4. Draw the diagram showing how blood in the capillaries surrounding the tissues exchanges respiratory gases with the cells of the tissue. Label a) RBC’s and b) Tissue cells.
5. Why the blood circulation in Human beings is called ‘Double Circulation’? Explain briefly how is ‘Pace Maker’ helpful to a heart patient?
6. What is the below graph representing. What is ECG? Give its full form. Does it show any feature about working of Heart?

ii. Blood:

1. Name the constituents of Blood. Why the White Blood Cells are called ‘Soldiers of the Body’?
2. List any four blood groups. Which blood group is called the ‘Universal Donor’ and which one is called the ‘Universal Acceptor’?
3. What do you mean by transfusion of blood? Why is it necessary to match the blood groups of the donor and the recipient persons before arranging transfusion? A person is a Universal donor. Which blood group shall be acceptable to him for transfusion?
4. State the major functions of Blood Platelets. What is their Shape?
5. What are the various cell types of blood and explain their functions?
6. Make a schematic representation of Major events taking place during Coagulation of blood.
7. What is Agglutination? What is Rh factor? What happens to a baby of Rh+ve factor when the mother is Rh-ve?
8. Give the meaning of the words antigen and antibody. Complete the below given table:

2. Define Excretion.

a. Insects:

1. State the role of excretion in living beings. Describe how excretion takes place in Amoeba.
2. Name the excretory organs in: Amoeba, Flat worm, Earth worm, Plan aria.
3. What is the excretory waste in the Earthworm and Amoeba?
4. Explain the excretion in Earthworm.

b. Human Beings:

1. Name the structural and functional unit of the excretory system.
2. With the help of a labeled diagram, describe the urinary system of human beings.
3. List two vital functions of Human Kidney? Draw a well labeled diagram of the artificial kidney.
4. Explain the process that takes place in Bowman’s capsule.
5. What material is used to line the tubes of a dialysis machine?