Description : Sertoli-Leydig cell tumor?
Last Answer : DefinitionSertoli-Leydig cell tumor is a rare cancer of the ovaries. The cancer cells produce and release a male sex hormone.Alternative NamesArrhenoblastoma; AndroblastomaSymptomsThe Sertoli cells are ... develop male physical characteristics (virilization), including facial hair and a deep voice.
Description : (i) Write the specific location and the functions of the following cells in human males Leydig cells Sertoli cells Primary spermatocyte (ii) Explain the role of any two accessory glands in human male reproductive system. -Biology
Last Answer : I)Oogenesis begins during the embryonic development stage when a million gamete mother cells (oogonia) are formed within each foetal ovary. (ii) (a) Sertoli cells are located on the inside ... provide nutrition to sperms. (b) Bulbourethral glands Their secretion helps in the lubrication of penis.
Description : (i) When does oogenesis begin? (ii) Differentiate between the location and function of Sertoli cells and Leydig cells. -Biology
Last Answer : Oogenesis begins during the embryonic development stage when a million gamete mother cells (oogonia) are formed within each foetal ovary. (ii) (a) Sertoli cells are located on ... seminiferous tubule called interstitial spaces. These cells synthesise and secrete testicular hormone called androgens.
Description : Androgens are synthesised in (A) Leydig cells in testes (B) Sertoli cells in testes (C) Seminiferous tubules (D) Prostate gland
Last Answer : Answer : A
Description : In males, luteinising hormone acts on (A) Leydig cells (B) Sertoli cells (C) Prostate gland (D) All of these
Description : Androgens are produced by (A) Cells of sertoli (B) Leydig cells (C) Rete testis (D) Efferent ductules
Last Answer : Answer : B
Description : Select the incorrect statement. (a) LH and FSH decrease gradually during the follicular phase. (b) LH triggers secretion of androgens from the Leydig cells. (c) FSH stimulates the Sertoli cells which help in spermiogenesis. (d) LH triggers ovulation in ovary.
Last Answer : (a) LH and FSH decrease gradually during the follicular phase.
Description : Male hormone is produced in the testis by cells of (a) Sertoli (b) epithelial (c) spermatocytes (d) Leydig.
Last Answer : (d) Leydig.
Description : Which of the following cells during gametogenesis is normally diploid ? (a) Spermatogonia (b) Secondary polar body (c) Primary polar body (d) Spermatid
Last Answer : (a) Spermatogonia
Description : Which part of the spermatid forms acrosome of sperm ?
Last Answer : Which part of the spermatid forms acrosome of sperm ? A. Mitochondria B. Golgi body C. Nucleus D. Lysosome
Description : The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is (a) spermatogonia - spermatocyte - spermatid - sperms (b) spermatid - spermatocyte ... - spermatid - spermatocyte - sperms (d) spermatocyte - spermatogonia - spermatid - sperms
Last Answer : a) spermatogonia - spermatocyte - spermatid - sperms
Description : The Leydig cells as found in the human body are the secretory source of (1) Androgens (2) Progesterone (3) Intestinal mucus (4) Glucagon
Last Answer : (1) Androgens
Description : The Leydig cells as found in the human body are the secretory source of: a) Intestinal mucus b) Glucagon c) Androgens d) Progesterone
Last Answer : c) Androgens
Description : What is sertoli cell? -Biology
Last Answer : answer:
Description : .Which one of the following cells, found in testes of rabbit, secretes male hormone? (a) Epithelial cells (b) Spermatocytes (c) Leydig’s cell (d) Sertoli cells
Last Answer : (c) Leydig’s cell
Description : 'Barr body' is found in - (1) Sperm (2) Sertoli cells (3) Female somatic cells (4) Male somatic cells
Last Answer : (3) Female somatic cells Explanation: A Barr body is the inactive X chromosome in a female somatic cell in those species in which sex is determined by the presence of the Y or W chromosome rather ... typical human female has only one Barr body per somatic cell, while a typical human male has none.
Description : ‘Barr body’ is found in (1) Sperm (2) Sertoli cells (3) Female somatic cells (4) Male somatic cells
Last Answer : Female somatic cells
Description : Cells of Leydig occur in
Last Answer : Cells of Leydig occur in A. Liver B. Ovary C. Testis D. Spleen
Description : Match the following columns and select the correct option. Column-I Column-II (A) Placenta (i) Androgens (B) Zona pellucida (ii) Human Chorionic Gonadotropin (HCG) (C) Bulbourethral glands (iii) Layer of the ovum (D) Leydig cells (iv) ... (ii) (iii) (c) (iii) (ii) (iv) (i) (d) (ii) (iii) (iv) (i)
Last Answer : (d) (ii) (iii) (iv) (i)
Description : The hormone which acts on Sertoli cells and stimulates the process of spermaogenesis is :
Last Answer : The hormone which acts on Sertoli cells and stimulates the process of spermaogenesis is : A. LH B. FSH C. Androgen D. GnRH.
Description : In mammals, Sertoli cells occur in
Last Answer : In mammals, Sertoli cells occur in A. Germinal epithelium of testis B. Germinal epithelium of ovary C. Medulls of kidney D. Adrenal cortex.
Description : Sertoli cells occur in
Last Answer : Sertoli cells occur in A. Adrenal cortex and secrete adrenaline B. Seminiferous tubules and ... choleystokinus D. Ovarises and secrete progesterone.
Description : Which of the following control the function Sertoli cells?
Last Answer : Which of the following control the function Sertoli cells? A. Estrogen B. FSH C. Testerone D. ACTH.
Description : Sertoli cells secrete a hormone
Last Answer : Sertoli cells secrete a hormone A. Gonadotropin B. Testerone C. Relaxin D. Inhibin.
Description : Assertion : Formation of sperm takes place in seminiferous tubules of testes . Reason : Seminiferous tubules lined with male germ cells and sertoli ce
Last Answer : Assertion : Formation of sperm takes place in seminiferous tubules of testes . Reason : Seminiferous ... . If both Assertion & Reason are False.
Description : Sertoli cells are involved in :-
Last Answer : Sertoli cells are involved in :- A. Respiration B. Nutrition of sperms C. Excretion D. Development of sex organs
Description : Sertoli cells are regulated by the pituitary hormone known as
Last Answer : Sertoli cells are regulated by the pituitary hormone known as A. FSH B. GH C. Prolactin D. LH
Last Answer : Sertoli cells occur in A. human testis B. frog testis C. human ovary D. frog ovary
Description : Sertoli cells are found in
Last Answer : Sertoli cells are found in A. testis of cockroach B. liver of mammals C. testis of mammals D. testis of frog
Last Answer : Sertoli cells are regulated by the pituitary hormone known as A. Prolactin B. LH C. FSH D. GH
Description : All the following statements about FSH are true except (A) It is a tropic hormone secreted by anterior pituitary (B) Its secretion is increased by gonadotropin releasing hormone (C) It acts on Sertoli cells (D) It increases the synthesis of testosterone
Last Answer : Answer : D
Description : Sertoli cells are regulated by the pituitary hormone known as (a) LH (b) FSH (c) GH (d) prolactin
Last Answer : FSH
Description : The difference between spermiogenesis and spermiation is (a) in spermiogenesis spermatids are formed, while in spermiation spermatozoa are formed (b) in spermiogenesis spermatozoa are formed, ... in spermiation spermatozoa are released from Sertoli cells into the cavity of seminiferous tubules
Last Answer : (d) in spermiogenesis spermatozoa are formed, while in spermiation spermatozoa are released from Sertoli cells into the cavity of seminiferous tubules.
Description : Sertoli cells are found in (a) ovaries and secrete progesterone (b) adrenal cortex and secrete adrenaline (c) seminiferous tubules and provide nutrition to germ cells (d) pancreas and secrete cholecystokinin.
Last Answer : (c) seminiferous tubules and provide nutrition to germ cells
Description : Testosterone is produced by (a) sertoli cells (b) Leydig’s cells (c) oxyntic cells (d) pituitary gland.
Last Answer : (b) Leydig’s cells
Description : The difference between spermiogenesis and spermiation is (1) In spermiogenesis spermatids are formed, while in spermiation spermatozoa are formed. (2) In spermiogenesis spermatozoa are formed, ... in spermiation spermatozoa are released from Sertoli cells into the cavity of seminiferous tubules.
Last Answer : (4) In spermiogenesis spermatozoa are formed, while in spermiation spermatozoa are released from Sertoli cells into the cavity of seminiferous tubules.
Description : WRITE THE LOCATION AND FUNCTION OF SERTOLI CELLS IN HUMANS.
Last Answer : ANS. IN THE SEMINIFEROUS TUBULES OF TESTIS, NOURISHES DEVELOPING SPERMS.
Description : Read the assertion and reason carefully to mark the correct option in question. Assertion: In the cell membrane , the non-polar tail of saturated hydr
Last Answer : Read the assertion and reason carefully to mark the correct option in question. Assertion: In the cell ... D. If both Assertion & Reason are false.
Description : What convectional cell in the atmosphere connects the polar jet stream and the subtropical jet stream?
Last Answer : Ferrel.
Description : Phospholipids are important cell membrane components since (A) They have glycerol (B) Form bilayers in water (C) Have polar and non-polar portions (D) Combine covalently with proteins
Last Answer : Answer : C
Description : Phospholipids are important cell membrane components because (A) They have glycerol (B) They can form bilayers in water (C) They have both polar and non polar potions (D) They combine covalently with proteins
Description : The importance of phospholipids as constituent of cell membrane is because they possess (A) Fatty acids (B) Both polar and nonpolar groups (C) Glycerol (D) Phosphoric acid
Description : Select the correct statement from the following regarding cell membrane. (a) Na+ and K+ ions move across cell membrane by passive transport. (b) Proteins make up 60 to 70% of the cell ... towards the inner part. (d) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson
Last Answer : (d) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson.
Description : Select the correct statement from the following regarding cell membrane (1) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson (2) Na+ and K+ ions move across cell membrane by ... of the cell membrane (4) Lipids are arranged in a bilayer with polar heads towards the inner part
Last Answer : (1) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson
Description : Relase of second polar body from human egg occurs
Last Answer : Relase of second polar body from human egg occurs A. After entry of sperm B. After fertilization C ... sperm entry D. With no relation to sperm entry.
Description : Assertion : When sperm enters in egg , one polar body is released in human . Reason : At the time of ovulation eggs found in secondary Oocyte phase .
Last Answer : Assertion : When sperm enters in egg , one polar body is released in human . Reason : At the time ... False . D. If both Assertion & Reason are False.
Description : Polar body is produced during the formation of :
Last Answer : Polar body is produced during the formation of : A. Sperm B. Oogonium C. Spermatocytes D. Secondary oocyte
Description : Extrusion of second polar body from egg occurs:
Last Answer : Extrusion of second polar body from egg occurs: A. After entry of sperm before completion of ... D. With out any relation of sperm entry
Last Answer : Polar body is produced during the formation of : A. Sperm B. Secondary oocyte C. Oogonium D. Spermatocytes