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प्रश्न
Why is the use of iodised salt advisable?
उत्तर
Iodised salt contains iodine which is essential for making thyroxine by the thyroid gland.
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संबंधित प्रश्न
What is the name of the system of glands which produces hormones?
Which gland secretes the growth hormone?
Fill in the following blanks with suitable words :
The two examples of effectors are .........and ...........
What is the function of insulin hormone? What type of patients are given insulin injections?
Write the names of five endocrine glands found in the human body. Name the hormones secreted by each gland.
Which of the following hormone prepares our body for action in emergency situations?
(a) testosterone
(b) growth hormone
(c) adrenaline
(d) insulin
A and B are the two systems of control and coordination in the human body. The messages in system A are transmitted in the form of chemical substances C which travel comparatively slowly through the blood stream. The substances C are made in tissues D present in the head and trunk of human body. The messages in system b are transmitted very quickly in the form of electrical impulses through fibres E. The effect of messages transmitted by system b usually lasts for a much shorter time as compared to those transmitted by system A.
(a) Name the system A. What does system A consist of?
(b) Name the chemical substance C.
(c) What is tissue D? Name any five such tissues in the human body.
(d) Name the system B. What does system B consist of?
(e) Name the fibres E.
(f) State whether system A controls the working of system B or system B controls the working of system A.
A diabetic patient suffers from the deficiency of which hormone?
How does chemical coordination take place in animals?
Name the hormone secreted in scary situations by animals. Write any three responses which enable the animal body to deal with it.
