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प्रश्न
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
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उत्तर
(a) thyroid gland requires iron to synthesise thyroxine.
Statement (a) is incorrect. Iodine is required for the synthesis of thyroxine hormone by the thyroid gland.
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संबंधित प्रश्न
Why is the use of iodised salt advisable?
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.
Pancreas
What is the name of the system of glands which produces hormones?
Name the disease caused by the deficiency of insulin hormone in the body.
Name one gland which acts both as an endocrine gland as well as an exocrine gland.
Why is the use of iodised salt advisable?
State the functions of Thyroxine hormones.
In what ways are puberty and adolescence result of the activity of some glands in the human body?
Write the names of five endocrine glands found in the human body. Name the hormones secreted by each gland.
How do hormones reach the organs they control?
odine is necessary for the synthesis of which of the following hormone?
(a) adrenaline
(b) auxin
(c) thyroxine
(d) insulin
The dramatic changes in body features associated with puberty are mainly because of the secretions of :
(a) estrogen from testes and testosterone from ovary
(b) estrogen from adrenal gland and testosterone from pituitary gland
(c) testosterone from testes and estrogen from ovary
(d) testosterone from thyroid gland and estrogen from pituitary gland
The underactive endocrine gland which causes goitre is :
(a) pancreas
(b) thyroid
(c) adrenal
(d) pituitary
The endocrine gland whose malfunctioning causes diabetes disease is :
(a) pituitary
(b) pineal
(c) parathyroid
(d) pancreas
The gland X which is located just below the brain in the human head secretes a chemical substance Y which controls the development of ones and muscles in the body of a person. Secretion of too little of substance Y as well as the secretion of too much of substance Y by the gland X leads to abnormal development of the body of a person.
(a) Name the gland X.
(b) What is the chemical substance Y?
(c) What happens if too little of substance Y is secreted?
(d) What happens if too much of substance Y is secreted?
(e) Name the system of glands in the human body of which gland X is a part.
The pancreas is made up of two parts A and B. The part A secretes insulin whereas part B secretes pancreatic juice.
(a) Which part is functioning as an endocrine gland? Why?
(b) What is insulin and what effect does it have in the body?
(c) Name the disease which can be treated by giving insulin injection.
(d) What does pancreatic juice contain? Where does pancreatic juice go?
(e) Name the life process in which pancreatic juice is made use of.
Which is the target organ of both adrenaline and insulin?
(a) heart
(b) kidney
(c) liver
(d) pancreas
