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प्रश्न
The gland A is attached to the wind pipe in the human body. The gland A makes and secretes a hormone B which controls the metabolism of carbohydrates, fats and proteins in the body. The non-metal element C is necessary for the formation of hormone B. The deficiency of C in the diet can cause a deficiency of hormone B in the body leading to a disease D in which the neck of a person appears to be swollen. People are advised to use salt E in cooking food so as to avoid disease D.
(a) Name (i) gland A, and (ii) hormone B.
(b) What is the element C?
(c) Name one type of food which can provide sufficient C in the diet of a person.
(d) Name (i) disease D, and (ii) salt E.
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उत्तर
- (i) A represents the thyroid gland. It is attached to the wind pipe in the human body.
- (ii) B represents thyroxine. It regulates the metabolism of carbohydrates, fats and proteins in the body.
- The non-metal element C is iodine. It is essential for the synthesis of thyroxine hormone by the thyroid gland.
- Sea foods like fish provide sufficient amount of iodine in the diet of a person.
- (i) D represents the disease called goitre. It is characterised by abnormal enlargement of the thyroid gland in the neck.
(ii) E represents iodised salt. It is advised to use iodine in cooking food in order to prevent goitre.
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संबंधित प्रश्न
How does our body respond when adrenaline is secreted into the blood?
Name the hormones secreted by the given endocrine glands and specify one function.
Thyroid
Name the hormones secreted by the given endocrine glands and specify one function.
Pituitary
Where are hormones made in the human body?
Name the hormones secreted by testes.
Name the disease caused by the deficiency of insulin hormone in the body.
Name the disease caused by the deficiency of thyroxine hormone in the body.
What is the name of in-built 'arrangement' in our body which controls the timing and amount of hormones released by various endocrine glands in the body?
Name one gland which acts only as an exocrine gland.
Which one term of the following includes the other three?
thyroid, ductless gland, thymus, pituitary, ovary
Why do you need iodine in your diet?
What substances are made by endocrine glands?
Name the hormones secreted by given endocrine glands :
Thyroid gland
Name the hormones secreted by given endocrine glands :
Parathyroid glands
Name the disease which occurs in adults due to the deficiency of iodine in the diet. What is the main symptom of this disease?
Which of the following endocrine gland does not occur as a pair in the human body?
One of the following statements is not true about thyroxine. This is :
(a) Thyroid gland requires iron to synthesise thyroxine
(b) It regulates carbohydrate, protein and fat metabolism
(c) Iodine is essential for the synthesis of thyroxine
(d) Thyroid gland can enlarge due to lack of thyroxine
A gland W is located just below the stomach in the human body. The gland W secretes a hormone X. The deficiency of hormone X in the body causes a disease Y in which the blood sugar level of a person rises too much. The person having high blood sugar is called Z.
(a) Name (i) gland W, and (ii) hormone X.
(b) What is the function of hormone X?
(c) Name (i) disease Y, and (ii) person Z.
(d) What advice would you like to give to a person who is suffering from disease Y due to faulty life-style?
There are two similar glands P which are located on top of two similar organs Q in the human body. P are often called the emergency glands and they secrete a hormone R into the blood stream. R is secreted in large amounts when a person is frightened. It brings about temporary changes in the body which allow a lot of substance S from the liver to go into the blood to provide a lot of energy in a very short time. This helps a person to fight back or run away from the frightening situation.
What are P, Q, R and S?
A and B are two pairs of glands that are present in the human endocrine system. The pair A is found only in females, whereas B is present only in males. Glands A make and secrete two hormones C and D, whereas glands B make and secrete only one hormone E. In addition to hormones, Glands A make gametes F, whereas glands B make gametes G.
(a) What are the glands A?
(b) What are the hormones C and D?
(c) What are the glands B? Name the hormone E.
(d) What are the gametes F and G?
(e) Which event in the life of males and females is associated with the secretion of the hormones C, D and E?
