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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
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
Name the hormones secreted by the given endocrine glands and specify one function.
Pancreas
Name one hormone secreted by the pituitary gland
Name the disease caused by the deficiency of thyroxine hormone in the body.
One of the following acts as an endocrine gland as well as an exocrine gland. This one is :
(a) salivary gland
(b) pancreas
(c) pituitary
(d) parathyroid
Which of the following hormone prepares our body for action in emergency situations?
(a) testosterone
(b) growth hormone
(c) adrenaline
(d) insulin
The endocrine gland whose malfunctioning causes diabetes disease is :
(a) pituitary
(b) pineal
(c) parathyroid
(d) pancreas
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.
A squirrel is in a scary situation. Its body has to prepare for either fighting or running away. State the immediate changes that take place in its body so that the squirrel is able to either fight or run?
Assertion: On attaining puberty, breast size increases and reproductive organs develop in females.
Reason: Ovaries release the hormone progesterone in females.
Name the hormone secreted in scary situations by animals. Write any three responses which enable the animal body to deal with it.
