Name the diseases by which a person is likely to suffer due to the deficiency of:
(i) Iodine; (ii) Insulin
(b) How the timing of secretion and amount of hormone secretion are regulated in human system. Explain with example.
Answers
Answer:
The human body is a complex machine that performs various functions to keep the body in a stable position. The working together of various organs of the body of an organism in a controlled manner to produce an appropriate reaction to a stimulus is called coordination.
The control and coordination of all the organs of an organism are done by the central nervous system of the body. This chapter also gives a detailed picture of the structure of a neuron, tropic movements, reflex actions, hormones, reflex action, human brain and also about types of nerves. These topics are explained diagrammatically and include all the pinpoints of the concepts.
Name the diseases by which a person is likely to suffer due to the deficiency of:
(i) Iodine; (ii) Insulin
ANSWERS : -
(i) Goitre
(ii) Diabetes
(b) How the timing of secretion and amount of hormone secretion are regulated in human system. Explain with example.
ANSWERS : -
In humans, the timing and amount of hormone secretion are regulated by the feedback mechanism by the end product. For example, the pancreas is triggered to release the insulin when the positive feedback is given by the increase of sugar level in blood.