Hormones in humans-Q& A review

Hormones in humans-Q& A review → Pancreas gland - Insulin and glucagon → Thyroid gland - Thyroxine and calcitonin. → Parathyroid gland - Parathormone → Adrenal gland - Epinephrine (adrenaline), norepinephrine (noradrenaline), cortisol, aldosterone, and sex hormones → Thymus gland - Thymosin → Pineal gland - Melatonin → Pituitary gland (anterior lobe) - Thyroid Stimulating Hormone (TSH), Adreno Cortico Tropic Hormone (ACTH), Gonado Tropic Hormone (GTH), Growth Hormone (GH)/Somato Tropic Hormone (STH), and prolactin → Hypothalamus - Oxytocin, vasopressin (Anti Diuretic Hormone-ADH), releasing hormone and inhibitory hormone → Testis - Testosterone → Ovary - Estrogen and progesterone 1. Arrange columns B and C in accordance with the data given in column A. 3 Score Ans: i-c-4, ii -a -3, iii - d -1 2. Select the symptoms related to hyperthyroidism from the statements given below. 2 Score (a) Emotional imbalance. (b) Low metabolic rate. (c) Hypertension. (d) Rise in body temperature. (e) Inflammation in body tissues. (f) Excessive sweating. (g) Increase in body weight. (h) Increased heartbeat. Ans: a, d, f, h 3. Observe the figure and answer the questions given below. 2 Score a) Identify the disease. (b) What is the cause of this disease? Ans: (a) Goitre (b) lodine is essential for the production of thyroxine. The production of thyroxine is blocked in the absence of iodine. In an attempt to produce more thyroxine, the thyroid gland enlarges. 4. The level of calcium in a person is given below. 3 Score 6 mg/100ml blood (a) Name the hormone produced in this person to regulate the blood calcium level to normal. (b) What are the actions of this hormone to regulate the blood calcium level to normal? Ans: (a) Parathormone (b) Reabsorbs calcium from kidneys to blood. Prevents the storage of calcium in bones. 5. Observe the figure of the adrenal gland and answer the following questions. 4 Score (a) Identify the parts indicated as X and Y. (b) Name the hormones secreted by 'X'. Give its functions. Ans: (a) X - Cortex Y - Medulla (b) i) Cortisol- synthesises glucose from protein and fat, slows down the action of defense cells, and controls inflammation and allergy. ii) Aldosterone: Maintains the salt-water level, and blood pressure. iii) Sex hormones: Helps in the development of sex organs. 6. Find out the odd one and give the common feature of the others. 1 Score TSH, ACTH, ADH, GTH Ans : ADH. Others are produced from the anterior lobe of the pituitary gland. 7. Correct the statements given below by replacing the underlined words alone, if found incorrect. 2 Score (a) Gigantism is characterised by the growth of the bones on the face, jaws and fingers. (b) If the production of somatotropin increases during the growth phase, it leads to a condition called dwarfism. Ans: (a) Acromegaly is characterised by the growth of the bones on the face, jaws - and fingers. (b) If the production of somatotropin increases during the growth phase, it leads to a condition called gigantism.