Please refer to the MCQ Questions for Class 11 Biology Chapter 22 Chemical Coordination and Integration with Answers. The following Chemical Coordination and Integration Class 11 Biology MCQ Questions have been designed based on the latest syllabus and examination pattern for Class 11. Our experts have designed MCQ Questions for Class 11 Biology with Answers for all chapters in your NCERT Class 11 Biology book.
Chemical Coordination and Integration Class 11 MCQ Questions with Answers
See below Chemical Coordination and Integration Class 11 Biology MCQ Questions, solve the questions and compare your answers with the solutions provided below.
Question. One similarity between enzymes and hormones is that
(a) both are proteins.
(b) both can be used again and again.
(c) both are used in minute amount.
(d) both act at a particular pH.
Question. Which one of the following statement is correct?
(a) Endrocrine glands regulate neural activity and nervous system regulates endocrine glands.
(b) Neither hormones control neural activity nor the neurons control endocrine activity.
(c) Endocrine glands regulate neural activity, but not vice versa.
(d) Neurons regulate endocrine activity, but not vice versa.
Question. Which of the following statement about the hormone action in humans is correct ?
(a) In females, FSH first binds with specific receptors on ovarian cell membrane.
(b) FSH stimulates the secretion of estrogen and progesterone.
(c) Glucagon is secreted by b-cells of Islets of langerhans and stimulates glycogenolysis.
(d) Secretion of thymosin is stimulated with ageing.
Question. Which of the followings is the more scientific definition of hormone?
(a) They are extracellular messengers.
(b) They always act at distantly located target organ.
(c) They are the products of well organized endocrine glands.
(d) They are non-nutrient chemicals that act as intercellular messengers.
Question. Match the hormones given in column-I with the terms given in column-II
Column -I Column-II
A. ADH I. Pituitary
B. ACTH II. Mineralocorticoid
C. Aldosterone III. Diabetes mellitus
D. Insulin IV. Diabetes insipidus
E. Adrenaline V. Vasodilator
(a) A – I, B – IV, C – II, D – III, E – V
(b) A – IV, B – II, C – I, D – III, E – V
(c) A – IV, B – I, C – II, D – III, E – V
(d) A – IV, B – I, C – III, D – II, E – V
Question. Which of the following statement is correct regarding glucagon hormone ?
(a) It has opposite effect to that of insulin.
(b) It converts glucose to glycogen.
(c) It is given to diabetic patients.
(d) It is formed by b-cells of pancreas.
Question. A woman may develop beard and moustaches due to
(a) hypersecretion of adrenal cortex.
(b) hypersecretion of thyroxine.
(c) hyposecretion of adrenaline.
(d) hyposecretion of thyroxine.
Question. Column-I lists the endocrine structure and column-II lists the corresponding hormones. Match the two columns and identify the correct option given below.
A. Hypothalamus I. Relaxin
B. Anterior pituitary II. Estrogen
C. Testis III. FSH and LH
D. Ovary IV. Testosterone
V. Gonadotropin releasing hormone
Question. Mark the hormone given in column I and the endocrine cells given in column II.
A. a-cell I. Inhibin
B. b-cell II. Glucagon
C. Leydig cell III. Insulin
D. Sertoli cells IV. Testosterone
(a) A – I, B – III, C – IV, D – II
(b) A – III, B – II, C – IV, D – I
(c) A – I, B – III, C – II, D – IV
(d) A – II, B – III, C – IV, D – I
Question. Identify (i) and (ii)
(a) i- Pituitary gland , ii- Adrenal gland
(b) i- Hypothalamus, ii- Pituitary gland
(c) i- Hypothalamus, ii- Adrenal gland
(d) i- Pituitary gland, ii- Hypothalamus
Question. Identify the hormone represented by lines 1 and 2?
(a) 1- ACTH, 2- Aldosterone
(b) 1- ACTH, 2- Adrenaline
(c) 1- TSH, 2- Thyroxine
(d) 1- TSH, 2- Aldosterone
Question. Which one of the following pairs is incorrectly matched?
(a) Insulin–Diabetes mellitus (disease)
(b) Glucagon–Beta cells (source)
(c) Somatostatin–Delta cells (source)
(d) Corpus luteum–Relaxin (secretion)
Question. Which of the following pair of hormone and their disorder is correctly matched ?
(a) Parathormone – Cretinism
(b) Thyroxine – Ricket
(c) Insulin – Diabetes insipidus
(d) Cortisol – Cushing’s disease
Question. Which hormone is related to mineral metabolism but is not a peptide / protein in nature ?
(d) All of the above
Question. Pancreatic duct of a healthy dog is blocked. Which of the following function of pancreas will not be affected ?
(a) Maintenance of normal blood sugar level.
(b) Carbohydrate digestion.
(c) Protein digestion.
(d) Neutralization of chyme.
Question. A decrease in the level of estrogen and progesterone causes
(a) growth and dilation of myometrium.
(b) growth of endometrium.
(c) constriction of uterine blood vessels leading to sloughing of endometrium or uterine epithelium.
(d) release of ovum from the ovary.
Question. Which of the following endocrine glands grows to the maximum size at puberty and then diminishes gradually?
Question. In hormone action, if receptor molecules are removed from target organ, the target organ will
(a) continue to respond to hormone.
(b) not respond to hormone.
(c) continue to respond but requires higher concentration.
(d) continue to respond but in the opposite way.
Question. The number of hormones secreted by anterior pituitary is
Question. Which one is different from the category of other three?
Question. Growth hormone of pituitary is more effective in
(a) presence of thyroxine.
(b) absence of thyroxine.
(c) absence of insulin.
(d) presence of adrenaline.
Question. Which of the following hormone helps a person who suffers from a marked fall in blood pressure ?
Question. Hormones involved in carbohydrate metabolism are
(a) insulin, glucagon, epinephrine and calcitonin
(b) insulin, glucagon, epinephrine and glucocorticoids
(c) insulin, glucagon, cortisol and melatonin
(d) insulin, glucagon, norepinephrine and melatonin
Question. Which of the following hormones are identical?
(a) ACTH and adrenaline
(b) hCG and progesterone
(c) Calcitonin and Oxytocin
(d) Vasopressin and ADH.
Question. A man suffering from diabetes mellitus drinks water more frequently as he has to eliminate from blood, the extra
Question. Which of the following disorders are caused by hypersecretion of their concerned hormones ?
(a) gigantism and exophthalmic goitre
(b) tetany and myxoedema
(c) diabetes mellitus and goitre
(d) rickets and diabetes insipidus
Question. Hormones produced by anterior lobe of pituitary
(a) control calcium level in blood.
(b) stimulate thyroid and other endocrine glands.
(c) initiate alarm reaction.
(d) regulate water balance in body.
Question. Which hormone promotes cell division, protein synthesis and bone growth?
Question. Point out the odd one:
Question. When a boy goes through puberty, the steroid hormone testosterone puts hair on his chest by
(a) interacting with DNA in the nuclei of cells.
(b) causing cells to change shape.
(c) altering the permeability of plasma membranes.
(d) triggering nerve impulses in cells.
Question. A patient of diabetes mellitus excretes glucose in urine even when he is kept in a carbohydrate free diet. It is because
(a) fats are catabolised to form glucose.
(b) amino acids are catabolised in liver.
(c) amino acids are discharged in blood stream from liver.
(d) glycogen from muscles are released in the blood stream.
Question. Identify a hormone which is produced by the pituitary gland in both males and females but functional only in females.
(d) Somatotropic hormone
Question. Low level of progesterone and estrogen in blood stimulate
(a) FSH-RH production
(b) LH production
(c) GH production
(d) All of the above
Question. Injection of glucagon will
(a) cause goitre
(b) cause galactosemia
(c) cause hypoglycemia
(d) increase blood sugar level
Question. A person who has protruding eyes, tachycardia and higher body temperature is suffering from
Question. Some glands produce hormones that stimulate other endocrine glands. Which of the following hormones specifically acts to trigger secretion of hormones by another endocrine gland?
(c) Adrenocorticotropic hormone (ACTH)
(d) Antidiuretic hormone (ADH)
Question. ADH, responsible for reabsorption of water and reduction of urine secretion, is synthesized by
(a) posterior pituitary gland
(b) juxtaglomerular apparatus
(d) anterior pituitary gland
Question. The hormones that initiate ejection of milk, stimulates milk production and growth of ovarian follicles, are respectively known as
(a) PRL, OT and LH
(b) OT, PRL and FSH
(c) LH, PRL and FSH
(d) PRH, OT and LH
Question. Hypothyroidism in adults and hyperparathyroidism in children will respectively lead to
(a) myxoedema and cretinism
(b) Grave’s disease and Hashimoto’s disease
(c) myxoedema and osteitis fibrosa cystica
(d) Addison’a disease and cretinism
Question. Feeling the tremors of an earthquake a scared resident of seventh floor of a multistoryed building starts climbing down the stairs rapidly. Which hormone initiated this action?
Question. A person is having problems with calcium and phosphorus metabolism in his body. Which one of the following glands may not be functioning properly?
Question. Which hormone causes dilation of blood vessels, increased oxygen consumption and glucogenesis?
Question. In the homeostatic control of blood sugar level, which organs function respectively as modulator and effector?
(a) Liver and islets of langerhans
(b) Hypothalamus and liver
(c) Hypothalamus and islets of langerhans
(d) Islets of langerhans and hypothalamus
Question. A pregnant female deliver a baby who suffers from stunted growth, mental retardation/low intelligence quotient and abnormal skin. This is the result of
(a) low secretion of growth hormone
(b) cancer of the thyroid gland
(c) over secretion of pars distalis
(d) deficiency of iodine in diet
Question. A health disorder that results from the deficiency of thyroxine in adults and characterized by a low metabolicrate, increase in body weight and tendency to retain water in tissues is
(c) simple goitre
Question. When the B.P. is high and over loading of heart is present then which hormone is released for compensating this mechanism ?
(c) Atri-natriuretic factor
Question. Pick the odd one out from each given words and then matches it with correct options.
I. Thyroid, Adrenal, Pituitary, Prostate
II. Cretinism, Goitre, Myxodema, Scurvy
III. Insulin, Blood sugar, Adrenaline, Thyroxine
IV. Estrogen, Progesterone, Testosterone, Prolactin
(a) I- Prostate, II – Scurvy, III – Blood sugar, IVTestosterone
(b) I – Adrenal, II – Goitre, III – Insulin, IV – Prolactin(c) I – Thyroid, II – Cretinism, III – Adrenaline, IV – Estrogen
(d) I – Pituitary, II – Myxodema, III – Thyroxine, IV – Progesterone
Question. Tim once suffered a severe allergic reaction to a bee sting. The sting caused him to suffer a near-fatal drop in blood pressure called anaphylactic shock. Now he carries a kit containing a syringe of _____________, which he can inject to speed up his heart if he reacts to a bee sting.
Question. Which of the following sets of vertebrate hormones are all produced in the anterior pituitary gland ?
(a) Somatostatin, Vasopressin, Insulin
(b) Prolactin, Growth hormone, Enkephalins
(c) Oxytocin, Prolactin, Adrenocorticotropin
(d) Estrogen, Progesterone, Testosterone
Question. The hormone ANP (Atrial Natriuretic Peptide) D
(a) stimulates the secretion of ADH and aldosterone.
(b) inhibits the secretion of aldosterone but stimulates ADH secretion.
(c) stimulates the secretion of renin.
(d) inhibits the secretion of ADH, aldosterone and renin.