Question

VERY SHORT ANSWER TYPE QUESTIONS

Q1. Why is color of blood red?

Q2. What does blood consist of?

Q3. What is removed along with water as sweat?

Q4. What is absorbed by roots from the soil

Q5. By which vascular tissue, water and nutrients are transported in the plants?

Q6. What is the function of stethoscope?

Q7. What is pulse?

Q8. How does pulse occur?

Q9. Which parts of the body comprise circulatory system?

Q10. Write the names of upper and lower chambers of heart.

Q11. Which pigment is necessary to provide efficiently to all the cells of the body?

Q12. What is the major excretory product in humans?

SHORT ANSWER TYPE QUESTIONS

Q1. Why is transport of materials necessary in a plant or in an animal?

Q2. What are the functions of white blood cells?

Q3. How is clot formed?

Q4.What is the main function of heart?

Q5. What re the functions of arteries and veins?

Q6. What will happen if there are no platelets in the blood?

Q7. Why is it necessary to excrete waste products?

Q8. What is transpiration? How is it useful to plants?

Q9. What is the function of sweat?

Q10. What is meant by excretion?

Q11. Why is blood needed by all the parts of the body?

Q12. Why do plants absorb a large quantity of water from the soil?

Q13. Differentiate between:

1. arteries and veins

2. atrium and ventricle

3. RBC and WBC

4. xylem and phloem

Q14. Why do sponges and hydra not have blood?

Q15. How does heart avoid mixing of blood?

Q16. Why valves present in veins?

Q17. Why do arteries have thick walls?

Q18. Why do veins have thinner walls?​

Answer 1

1. Our red blood cells are red because of the heme groups in hemoglobin