Chemical Coordination and Integration
Q1: Define Hormones.
Answer:
Hormones are non-nutrient chemicals that act as intercellular messengers and are produced in trace amounts by the various glands present in the body.
Q2: Which Hormone aids in Cell-mediated Immunity?
Answer:
Thymosin hormone, through differentiation of T lymphocytes.
Q3: What is the Difference between Hypothyroidism and Hyperthyroidism?
Answer:
- Hypothyroidism is caused due to decreased secretion of Thyroxin hormone. It results in Goitre in adults and Cretinism in children.
- Hyperthyroidism is caused due increased secretion of the Thyroxin hormone. It results in exophthalmic goiter.
Q4: Define Erythropoiesis. Name the Hormone that triggers it.
Answer:
The process of formation of RBC is known as erythropoiesis. The juxtaglomerular cells of the kidney trigger erythropoiesis to produce the Erythropoietin hormone.
NCERT Notes for Class 11 Biology Chapter 19: Chemical Coordination and Integration
NCERT Notes Biology Class 11 Chapter 19 Chemical Coordination and Integration: The study of chemical coordination and Integration forms an important part of human physiology. Chemical coordination, integration, and regulations in the human body are carried out by special chemicals called hormones. Regulation, growth, and development of our organs, the endocrine glands, and cells are carried out by hormones.
Here, in Chapter 19 of Biology Class 11 NCERT Chemical Coordination and Integration, we will study the Human endocrine system, Hormones, and their mechanism of action.
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