Which halogen element is necessary for the making of thyroxine hormone by the thyroid gland?
Iodine is the halogen element necessary for the making of thyroxine hormone by the thyroid gland, which prevents the formation of goitre.
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- Iodine is necessary for the synthesis of which of the following hormone?(a) adrenaline (b) auxin (c) thyroxine (d) insulin
- One of the following statements is not true about thyroxine. This is:(a) Thyroid gland requires iron to synthesize 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
- Which one term in each of the following includes the other three?(a) thyroid, ductless gland, thymus, pituitary, ovary(b) adrenalin, insulin, hormone, thyroxine, estrogen
- Which gland secretes the growth hormone?
- Answer question numbers (a) to (d) on the basis of your understanding of the following information and related studied concepts. Thyroid gland is a bilobed structure situated in our neck region. It secretes a hormone called thyroxine. Iodine is necessary for the thyroid gland to make thyroxine. Thyroxine regulates carbohydrate, protein and fat metabolism in the body. It promotes growth of body tissues also. When there is an excess of thyroxine in the body, a person suffers from hyperthyroidism and if this gland is underactive it results in hypothyroidism. Hyperthyroidism is diagnosed by blood tests that measure the levels of thyroxine and Thyroid Stimulating Hormone (TSH). Hypothyroidism is caused due to the deficiency of iodine in our diet resulting in a disease called goitre. Iodised salt can be included in our diet to control it. (a) Where is thyroid gland situated in our body? (b) State the function of thyroxine in human body. (c) What is hyperthyroidism? (d) How can we control hypothyroidism?
- Which radioactive isotope is used to determine the activity of thyroid gland?
- Name the disease caused by the deficiency of thyroxine hormone in the body.
- Name one hormone secreted by the pituitary gland.
- Answer the following:(a) Which hormone is responsible for the changes noticed in females at puberty?(b) Dwarfism results due to deficiency of which hormone?(c) Blood sugar level rises due to deficiency of which hormone?(d) Iodine is necessary for the synthesis of which hormone?
- Saliva is released from(a) Pinus gland(b) Thyroid gland(c) Adrenal gland(d) Salivary gland
- What are hormones? Name the hormone secreted by thyroid and state its function?
- The underactive endocrine gland which causes goitre is:(a) pancreas (b) thyroid (c) adrenal (d) pituitary
- State the functions of the following hormones:(a) Thyroxine (b) Adrenaline (c) Growth hormone
- Name the material which is used for making the heating element of an electric iron.
- Which plant hormone is responsible for the wilting and falling of leaves ?
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