NCERT Class 11 Biology Book Chapter 15 Answer। Plant Growth and Development ।

Chapter 15

Plant Growth and Development 

1. Name the components of the formed elements in the blood and mention one major function of each of them.

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2. What is the importance of plasma proteins?

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3. Match Column I with Column II :

Column I                                                         Column II

(a) Eosinophils                                            (i) Coagulation

(b) RBC                                                      (ii) Universal Recipient

(c) AB Group                                             (iii) Resist Infections

(d) Platelets                                                (iv) Contraction of Heart

(e) Systole                                                  (v) Gas transport

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4. Why do we consider blood as a connective tissue?

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5. What is the difference between lymph and blood?

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6. What is meant by double circulation? What is its significance?

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7. Write the differences between :

(a) Blood and Lymph

(b) Open and Closed system of circulation

(c) Systole and Diastole

(d) P-wave and T-wave

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8. Describe the evolutionary change in the pattern of heart among the vertebrates.

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9. Why do we call our heart myogenic?

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10. Sino-atrial node is called the pacemaker of our heart. Why?

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11. What is the significance of atrio-ventricular node and atrio-ventricular bundle in the functioning of heart?

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12. Define a cardiac cycle and the cardiac output.

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13. Explain heart sounds.

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14. Draw a standard ECG and explain the different segments in it.

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Type By Susmita Kakati

Post ID: DABP006792