Class 11- Biology- chapter 19 – Chemical Coordination and Integration InstructionTotal Questions : 20Total time :20 minTotal Marks : 20 x 3 = 60 MarksEach Correct Question carries : 3 MarksEach incorrect Question Carries : -1 MarksEach Unattempted Question carry : 0 MarksBe careful On Negative Markings 1. Pineal gland of human brain secretes melatonin, which is concerned with Body temperature Anger Sleep Colouration of skin None 2. When the blood phosphorus level becomes too high, the result is The parathyroid glands release PTH, which binds to bone cells. The thyroid gland releases thyroid hormone, which binds to small intestine cells The thyroid gland releases calcitonin, which binds to bone cells. The pancreas release glucagon, which binds to liver cells None 3. ............. is the only complete ring of the cartilage around the trachea. Cricoid cartilage Articular cartilage Thyroid cartilage Pretracheal fascia None 4. The female hormone that causes deposition of fat in the breast, and hips and the growth of pubic hairs during puberty is Follicle-stimulating hormone Estrogen Progesterone Luteinizing hormone None 5. Arrange the following step in correct sequence found during the mechanism of lipid insoluble hormone (epinephrine) function or action.A. Second messenger formationB. Binding to the surface receptorC. GlycogenolysisD. Adenylate cyclase activation C, A, D and B D, B, C and A B, D, A and C None of the above None 6. Consider the following four statements (a-d) and select the option which includes the correct ones only.(a) The thyroid hormone play an important role in basal metabolic rate and erythropoisis(b) Glucocorticoids inhibits inflammatory reactions by suppressing the immune system and promotes erythropoisis(c ) Androgen promotes development maturation and function of the male sex organ as well as erythropoisis(d) The gastrointestinal tract not only secretes gastric inhibitory peptide but also promotes formation of RBC. 4 3 1 2 None 7. Which one of the following four glands is correctly matched with the accompanying description? Pancreas - Delta cells of the islets of Langerhans secrete a hormone which stimulates glycolysis in liver Parathyroid - Secretes parathormone, which promotes movement of calcium ions from blood into bones during ossification. Thyroid - Hyperactivity in young children causes cretinism Thymus - Starts undergoing atrophy after puberty None 8. Calcitonin is a thyroid hormone, which ________. Elevates calcium level in blood Has no effect on calcium Lowers calcium level in blood Elevates potassium level in blood None 9. Select the correct match of endocrine gland, its hormone and its function. Leydig cells - androgen - initiates production of sperms Corpus luteum - estrogen - essential for maintenance of endometrium Pancreas - estrogen - initiates secretion of milk Ovary - FSH - stimulates follicular development and secretion of estrogens None 10. Choose the correct answer from the alternatives given.Parathyroid hormone (PTH) regulates: regulates sleep glucose balance between blood and tissues calcium balance between blood and tissues regulates temperature None 11. Androgens are produced by Testes and adrenals Adrenals and ovaries Adrenals only Ovaries and testes None 12. What effect does the presence of ANF have on the body? It increases the excretion of sodium and water It increases the production of renin It stimulates the production of aldosterone It stimulates the production of angiotensin None 13. Which of the following statements is false? Cerebral cortex in humans is folded into convolutions Thalamus is an important sensory relay structure Hypothalamus has an important role in recognising and experiencing Hindbrain contains medulla, pons and cerebellum None 14. Select the answer which correctly matches the endocrine gland with the hormone it secretes and its function/deficiency symptom : Endocrine gland - Posterior pituitary, Hormone - Growth Hormone (GH), Function/deficiency symptoms - Oversecretion stimulates abnormal growth Endocrine gland - Anterior pituitary, Hormone - Oxytocin, Function/deficiency symptoms - Stimulates uterus contraction during child birth Endocrine gland - Corpus luteum, Hormone - Testosterone, Function/deficiency symptoms - stimulates spermatogenesis Endocrine gland - Thyroid gland, Hormone - Thyroxine, Function/deficiency symptoms - Lack of iodine in diet results in goitre None 15. The pineal gland secretes a hormone progesterone which helps to regulate sleep pattern. Thyroid glands release hormone which regulate the level of calcium in the blood with the help of calcitonin which is produced in the parathyroid glands. Select the correct option regarding the given paragraph.i) Positions of pineal and parathyroid should be interchangedii) Progesterone must be replaced by melatoniniii) Parathyroid should not be replaced as it is correctly mentioned.iv) Positions of progesterone and calcitonin should be interchangedv) Positions of thyroid and parathyroid should be interchanged i and iii only ii and iv only i, ii and v only ii and v only None 16. Thyroid hormone increase the rate of breathing, intake and consumption of oxygen, and increase the activity of mitochondria. Under which of the following criteria, the function of thyroxine can be classified? Metabolic Cardiovascular Developmental All of the above None 17. The low blood sugar level is maintained due to the secretion of hormone by the gland Parathyroid Pancreas Salivery gland Adrenal medulla None 18. The two hormones secreted by adrenal glands which regulate the rate of metabolism and the concentration of salts in blood and prepares the body to face the emergency are ........... and ............ which helps in metabolic functions. Cortisone and adrenaline Insulin and glucagon Cortisone and dopamine Testosterone and estrogen None 19. Cortex, sympathetic, medulla, steroid, aldosterone, catecholamine, cortisol, adrenocorticotrophic, noradrenaline, adrenalineFill in the blanks with the above words.Adrenal glands are paired structures located on the top of kidneys. Each adrenal gland has two parts outer ...... (1) ........ and inner ....... (2) ...... The outer part secretes ...... (3) .........hormones (chemical nature) e.g., ..... (4) ........ and ...... (5) ......... and is controlled by ........ (6) ......... hormone of the pituitary gland. The inner part secretes ....... (7) .......... hormones (chemical nature) eg., ....... (8) .......... and ........ (9) ......... and is controlled by ........ (10) .......... nervous system. 1. Medulla, 2. Cortex, 3. Steroid, 4. Aldosterone, 5. Cortisol, 6. Adrenocorticotrophic, 7. Catecholamine, 8. Adrenaline, 9. Noradrenaline, 10. Sympathetic 1. Medulla, 2. Cortex, 3. Steroid, 4. Aldosterone, 5. Cortisol, 6. Adrenocorticotrophic, 7. Catecholamine, 8. Adrenaline, 9. Sympathetic, 10. Noradrenaline 1. Medulla, 2. Cortex, . Steroid, 4. Cortisol, 5. Aldosterone, 6. Adrenocorticotrophic, 7. Catecholamine, 8. Adrenaline, 9. Noradrenaline, 10. Sympathetic 1. Cortex, 2. Medulla, 3. Steroid, 4. Aldosterone, 5. Cortisol, 6. Adrenocorticotrophic, 7. Catecholamine, 8. Adrenaline, 9. Noradrenaline, 10. Sympathetic None 20. What role is performed by pancreas in order to deal with an increased blood glucose level above normal range? Releases insulin, signaling the liver to convert glucose to glycogen Releases glucagon, signaling muscle cells to take up glucose Releases glucagon, signaling adipose cells to take up glucose Releases insulin, signaling muscle cells to release glucose None Time's up Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
