Description : In males, secretion of luteinising hormone is inhibited by (A) Gonadotropin releasing hormone (B) FSH (C) High blood level of testosterone (D) Inhibin
Last Answer : Answer : C
Description : Identify the correct statement on inhibin'. (a) Is produced by granulosa cells in ovary and inhibits the secretion of LH (b) Is produced by nurse cells in testes and inhibits the secretion of LH ... , FSH and prolactin (d) Is produced by granulosa cells in ovary and inhibits the secretion of FSH
Last Answer : (d) Is produced by granulosa cells in ovary and inhibits the secretion of FSH
Description : If mammalian ovum fails to get fertilised, which one of the following is unlikely? (a) Corpus luteum will disintegrate. (b) Progesterone secretion rapidly declines. (c) Estrogen secretion further increases. (d) Primary follicle starts developing.
Last Answer : (c) Estrogen secretion further increases.
Description : Patient presents with rapidly progressive root caries on many teeth. Which of the following laboratory results would be a possible indicator of this? A. Stimulated salivary secretion rate of 1.5ml/min B. ... of 105 organism/ml E. Salivary buffering PH 5.5 > 100000 CFU/ml high caries incidence
Last Answer : E. Salivary buffering PH 5.5
Description : Assertion : The failure of secretion of hormone vasopressin causes diabetes mellitus in the patient. Reason : Vasopression reduces the volume of urine
Last Answer : Assertion : The failure of secretion of hormone vasopressin causes diabetes mellitus in the patient. ... . If both Assertion and Reason are false.
Description : In the autonomic regulation of blood pressure (a) Cardiac output is maintained constant at the expense of other hemodynamic variables (b) Elevation of blood pressure results in elevated ... the sensitivity of the sensory baroreceptor nerve endings might cause an increase in sympathetic discharge
Last Answer : Ans: D
Description : Agonistic action on which of the following adrenergic receptors located on ciliary epithelial cells reduces aqueous secretion: A. β1 receptor B. β2 receptor C. α1 receptor D. α2 receptor
Last Answer : D. α2 receptor
Description : Mucokinetic is a drug which: A. Reduces airway mucus secretion B. Increases airway mucus secretion C. Makes respiratory secretions more watery D. Stimulates mucociliary activity of bronchial epithelium
Last Answer : C. Makes respiratory secretions more watery
Description : what is inhibin hormone? -Biology
Last Answer : answer:
Description : In females, the harmone inhibin is secreted by:
Last Answer : In females, the harmone inhibin is secreted by: A. Granulosa cells and corpus luteum B. ... oophorus cells D. Granulosa cells and zona pellucida.
Description : Inhibin is produced by
Last Answer : Inhibin is produced by A. Corpus luteum B. Testis C. Placenta D. All the above.
Description : Assertion : Inhibin is secreted by the corpus luteum. Reason : They inhibit the FSH and GnRH production.
Last Answer : Assertion : Inhibin is secreted by the corpus luteum. Reason : They inhibit the FSH and GnRH ... D. If both Assertion and Reason are false.
Description : Changes in GnRH pulse frequency in females is controlled by circulating levels of (a) progesterone only (b) progesterone and inhibin (c) estrogen and progesterone (d) estrogen and inhibin.
Last Answer : c) estrogen and progesterone
Description : Which of the following pairs of hormones are not antagonistic (having opposite effects) to each other? (a) Aldosterone Atrial Natriuretic Factor (b) Relaxin Inhibin (c) Parathormone Calcitonin (d) Insulin Glucagon
Last Answer : (b) Relaxin Inhibin
Description : Hydrocortisone induces the synthesis of the following protein which in turn inhibits the enzyme phospholipase-A2: A. Heat shock protein-90 B. Inhibin C. Transcortin D. Lipocortin
Last Answer : D. Lipocortin
Description : A person suffering from a disease caused by Plasmodium, experiences recurring chill and fever at the time when (a) the sporozoites released from RBCs are being rapidly killed and broken down ... to enter fresh RBCs (d) the microgametocytes and megagametocytes are being destroyed by the WBCs
Last Answer : (c) the parasite after its rapid multiplication inside RBCs ruptures them, releasing the stage to enter fresh RBCs
Description : If a scuba diver suffers from the "bends", this means that which gas is being rapidly released from the blood and tissues? w) oxygen x) hydrogen y) nitrogen z) CO2
Last Answer : ANSWER: Y -- NITROGEN
Description : If useful products are released from the cell, the process is known as: B A. Excretion B. Secretion C. Osmosis D. Sweating
Last Answer : Secretion
Description : Anti-diuretic diuretic hormone (ADH) a. is synthesized by the posterior lobe of the pituitary gland b. is released by neurosecretion c. its secretion is increased by a low plasma osmolarity d. increases the permeability of the distal convoluted tubule
Last Answer : is released by neurosecretion
Description : If useful products are released from the cell. The process is called a. secretion b. excretion c. sweating d. urination
Last Answer : secretion
Description : What will happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor? (a) In the absence of HCl secretion, inactive pepsinogen is not converted into the active ... c) Gastric juice will be deficient in chymosin. (d) Gastric juice will be deficient in pepsinogen.
Last Answer : (a) In the absence of HCl secretion, inactive pepsinogen is not converted into the active enzyme pepsin.
Description : Which of the following body substances causes increased gastric secretion, dilation of capillaries, and constriction of the bronchial smooth muscle? a) Histamine When cells are damaged, ... Prostaglandin Prostaglandins are unsaturated fatty acids that have a wide assortment of biologic activity.
Last Answer : a) Histamine When cells are damaged, histamine is released.
Description : What is the process of Spermatogenesis & Oogenesis -Biology
Description : Where does spermatogenesis occur? -Biology
Description : What is spermatogenesis ?
Last Answer : Spermatogenesis is the process by which haploid spermatozoa or sperm are produced from the seed cell in the seminiferous duct of the egg or testis.
Last Answer : Spermatogenesis is the process by which haploid spermatozoa or sperm are produced from seed cells in the seminiferous duct of the egg or testis.
Description : Arrange in correct sequence the structures formed during spermatogenesis a) spermatogonia b) Secondary spermatocyte c) Spermatogonial stem cells c) sp
Last Answer : Arrange in correct sequence the structures formed during spermatogenesis a) spermatogonia b) Secondary spermatocyte c) ... -d-e D. c-d-a-b-c
Description : During spermatogenesis, the diploid cells are
Last Answer : During spermatogenesis, the diploid cells are A. Primary spermatocyte and spermtogonium B. ... spermatid. D. Primary spermatocyte and spermatid.
Description : Secondary spermatocytes undergo second meiotic division during spermatogenesis to produce.
Last Answer : Secondary spermatocytes undergo second meiotic division during spermatogenesis to produce. A. ... Spermatogonia `rarr` Sperms D. Spermatogonia
Description : In mammals, spermatogenesis is stimulated by
Last Answer : In mammals, spermatogenesis is stimulated by A. MSH B. TSH C. ADH D. FSH.
Description : Hormone responsible for spermatogenesis is
Last Answer : Hormone responsible for spermatogenesis is A. Androgen B. Progesterone C. Testosterone D. None of these.
Description : Spermatogenesis changes
Last Answer : Spermatogenesis changes A. Spermatogonium into primary spermatocyte B. Primary spermatocyte into secondary ... into spermatid D. All the above.
Description : During spermatogenesis, the first meotic division occurs in
Last Answer : During spermatogenesis, the first meotic division occurs in A. Sertoli cells B. Spermatids C. Spermatozoans D. Primary spermatocytes
Description : Spermatogenesis occurs in
Last Answer : Spermatogenesis occurs in A. Vasa deferentia B. Epididymis C. Seminiferous tubules D. Penis.
Description : In spermatogenesis, reduction of chromosomes occurs during conversion of:
Last Answer : In spermatogenesis, reduction of chromosomes occurs during conversion of: A. Primary ... sperms D. Secodnary spermatocytes to spermatids.
Description : Spermatogenesis is formation of
Last Answer : Spermatogenesis is formation of A. Ovary B. Ovum C. Sperm D. Zygote.
Description : Which is the correct sequenc e in spermatogenesis?
Last Answer : Which is the correct sequenc e in spermatogenesis? A. Spermatogonia `rarr` Spermatids `rarr` ... spermatocytes `rarr` Spermatids `rarr` Spers.
Description : In spermatogenesis, a primary spermatocyta produce four similar sperms while in oognesis a primary oocyte forms
Last Answer : In spermatogenesis, a primary spermatocyta produce four similar sperms while in oognesis a primary oocyte ... One large ovum and 2-3 polar bodies.
Description : Assertion : During embrynic stage testes descend down and at the time of birth , it comes into scrotum . Reason : Spermatogenesis process requires les
Last Answer : Assertion : During embrynic stage testes descend down and at the time of birth , it comes into scrotum ... . D. If both Assertion & Reason are False.
Description : At which stage of spermatogenesis sperm acquire their whole structural maturity and they contain a haploid nucleus & other organs-
Last Answer : At which stage of spermatogenesis sperm acquire their whole structural maturity and they contain a ... C. Multiplication phase D. Maturation phase
Description : Correct order of spermatogenesis is :-
Last Answer : Correct order of spermatogenesis is :- A. Spermatocytes , Spermatogonia , Spermatid , Sperm B ... , Sec. Spermatocytes , Spermatid , Sperm
Description : The process of spermatogenesis and oogenesis in most vertebrates are under the influence of which hormone ?
Last Answer : The process of spermatogenesis and oogenesis in most vertebrates are under the influence of which hormone ? A. Oxytocin B. FSH C. ACTH D. ICSH
Description : During spermatogenesis how many spermatozoa are formed from a single primary spermatocyte
Last Answer : During spermatogenesis how many spermatozoa are formed from a single primary spermatocyte A. 1 B. 2 C. 4 D. 8
Description : Longest phase of spermatogenesis is :-
Last Answer : Longest phase of spermatogenesis is :- A. Multiplication phase B. Growth phase C. Maturation phase D. Germinal phase
Description : Acrosome formation in spermatogenesis occurs in which stage ?
Last Answer : Acrosome formation in spermatogenesis occurs in which stage ? A. First meiotic division B. Second meiotic division C. Growth phage D. Spermiogenesis
Description : Spermatogenesis process occur in
Last Answer : Spermatogenesis process occur in A. Rete testis B. Seminiferous Tubules C. Septula testis D. Mediastinum testis