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.

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.
by

1 Answer

Answer :

(a) LH and FSH decrease gradually during the
follicular phase.
by

Related questions

Select the option which correctly matches the endocrine gland with its hormone and its function. Endocrine Hormone Function gland (a) Placenta Estrogen Initiates secretion of the milk (b) Corpus Estrogen Essential for luteum maintenance of endometrium (c) Leydig’s Androgen Initiates the cells production of sperms (d) Ovary FSH Stimulates follicular development and the secretion of estrogens

Description : Select the option which correctly matches the endocrine gland with its hormone and its function. Endocrine Hormone Function gland (a) Placenta Estrogen Initiates secretion of the milk (b) Corpus ... of sperms (d) Ovary FSH Stimulates follicular development and the secretion of estrogens

Last Answer : (c) Leydig’s Androgen Initiates the cells production of sperms

No new follicles develop in the luteal phase of the menstrual cycle because (a) follicles do not remain in the ovary after ovulation (b) FSH levels are high in the luteal phase (c) LH levels are high in the luteal phase (d) both FSH and LH levels are low in the luteal phase.

Description : No new follicles develop in the luteal phase of the menstrual cycle because (a) follicles do not remain in the ovary after ovulation (b) FSH levels are high in the luteal phase (c) LH levels are high in the luteal phase (d) both FSH and LH levels are low in the luteal phase.

Last Answer : (d) both FSH and LH levels are low in the luteal phase.

Which one of the following is the correct matching of the events occurring during menstrual cycle? (a) Proliferative phase : Rapid regeneration of myometrium and maturation of Graafian follicle (b) Secretory phase : Development of corpus luteum and increased secretion of progesterone (c) Menstruation : Breakdown of myometrium and ovum not fertilised (d) Ovulation : LH and FSH attain peak level and sharp fall in the secretion of progesterone

Description : Which one of the following is the correct matching of the events occurring during menstrual cycle? (a) Proliferative phase : Rapid regeneration of myometrium and maturation of Graafian follicle (b) ... ) Ovulation : LH and FSH attain peak level and sharp fall in the secretion of progesterone

Last Answer : (b) Secretory phase : Development of corpus luteum and increased secretion of progesterone

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 (c) Inhibits the secretion of LH, FSH and prolactin (d) Is produced by granulosa cells in ovary and inhibits the secretion of FSH

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

Which is an example of negative feedback? A) Nursing action stimulates the hypothalamus to release oxytocin that triggers mammary gland milk production. B) When the blood becomes dilute, ADH is no longer released from the hypothalamus. C) Uterine stretching sends nerve impulses to the hypothalamus that releases oxytocin that triggers uterine contraction. D) FSH and LH stimulate the gonads to produce sperm or eggs. E) TRH stimulates the anterior pituitary to release thyroid-stimulating hormone.

Description : Which is an example of negative feedback? A) Nursing action stimulates the hypothalamus to release oxytocin that triggers mammary gland milk production. B) When the blood becomes dilute, ADH ... produce sperm or eggs. E) TRH stimulates the anterior pituitary to release thyroid-stimulating hormone.

Last Answer : B) When the blood becomes dilute, ADH is no longer released from the hypothalamus

Secretion of androgens is increased by (A) LH (B) FSH (C) ACTH (D) Growth hormone

Description : Secretion of androgens is increased by (A) LH (B) FSH (C) ACTH (D) Growth hormone

Last Answer : Answer : A

Androgens are synthesised in (A) Leydig cells in testes (B) Sertoli cells in testes (C) Seminiferous tubules (D) Prostate gland

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

Androgens are produced by (A) Cells of sertoli (B) Leydig cells (C) Rete testis (D) Efferent ductules

Description : Androgens are produced by (A) Cells of sertoli (B) Leydig cells (C) Rete testis (D) Efferent ductules

Last Answer : Answer : B

In women of child bearing age, clomiphene citrate produces the following actions except: A. Hot flushes B. Ovulation C. Decreased FSH and LH secretion D. Polycystic ovaries

Description : In women of child bearing age, clomiphene citrate produces the following actions except: A. Hot flushes B. Ovulation C. Decreased FSH and LH secretion D. Polycystic ovaries

Last Answer : C. Decreased FSH and LH secretion

GnRH, a hypothalamic hormone, needed in reproduction, acts on (a) anterior pituitary gland and stimulates secretion of LH and FSH (b) posterior pituitary gland and stimulates secretion of oxytocin and FSH (c) posterior pituitary gland and stimulates secretion of LH and relaxin (d) anterior pituitary gland and stimulates secretion of LH and oxytocin.

Description : GnRH, a hypothalamic hormone, needed in reproduction, acts on (a) anterior pituitary gland and stimulates secretion of LH and FSH (b) posterior pituitary gland and stimulates secretion of oxytocin ... of LH and relaxin (d) anterior pituitary gland and stimulates secretion of LH and oxytocin.

Last Answer : (a) anterior pituitary gland and stimulates secretion of LH and FSH

GnRH, a hypothalamic hormone, needed in reproduction, acts on: (1) anterior pituitary gland and stimulates secretion of LH and FSH. (2) posterior pituitary gland and stimulates secretion of oxytocin and FSH. (3) posterior pituitary gland and stimulates secretion of LH and relaxin. (4) anterior pituitary gland and stimulates secretion of LH and oxytocin.

Description : GnRH, a hypothalamic hormone, needed in reproduction, acts on: (1) anterior pituitary gland and stimulates secretion of LH and FSH. (2) posterior pituitary gland and stimulates secretion of oxytocin and ... of LH and relaxin. (4) anterior pituitary gland and stimulates secretion of LH and oxytocin.

Last Answer : 1) anterior pituitary gland and stimulates secretion of LH and FSH.

Sertoli cells are regulated by the pituitary hormone known as (a) LH (b) FSH (c) GH (d) prolactin

Description : Sertoli cells are regulated by the pituitary hormone known as (a) LH (b) FSH (c) GH (d) prolactin

Last Answer : FSH

Select the correct option describing gonadotropin activity in a normal pregnant female. (a) High level of FSH and LH stimulates the thickening of endometrium. (b) High level of FSH and LH facilitates implantation of the embryo. (c) High level of hCG stimulates the synthesis of estrogen and progesterone. (d) High level of hCG stimulates the thickening of endometrium.

Description : Select the correct option describing gonadotropin activity in a normal pregnant female. (a) High level of FSH and LH stimulates the thickening of endometrium. (b) High level of FSH and LH ... synthesis of estrogen and progesterone. (d) High level of hCG stimulates the thickening of endometrium.

Last Answer : (c) High level of hCG stimulates the synthesis of estrogen and progesterone.

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) Lubrication of the penis (A) (B) (C) (D) (a) (iv) (iii) (i) (ii) (b) (i) (iv) (ii) (iii) (c) (iii) (ii) (iv) (i) (d) (ii) (iii) (iv) (i)

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)

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

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

Which of the following hormone levels will cause release of ovum (ovulation) from the Graffian follicle? (a) High concentration of Estrogen (b) High concentration of Progesterone (c) Low concentration of LH (d) Low concentration of FSH

Description : Which of the following hormone levels will cause release of ovum (ovulation) from the Graffian follicle? (a) High concentration of Estrogen (b) High concentration of Progesterone (c) Low concentration of LH (d) Low concentration of FSH

Last Answer : a) High concentration of Estrogen

The immediate cause of induction of ovulation in human female is the large plasma surge of (a) LH (b) FSH (c) progesterone (d) estradiol.

Description : The immediate cause of induction of ovulation in human female is the large plasma surge of (a) LH (b) FSH (c) progesterone (d) estradiol.

Last Answer : (a) LH

What is correct to say about the hormone action in humans? (a) Glucagon is secreted by β-cells of islets of Langerhans and stimulates glycogenolysis. (b) Secretion of thymosins is stimulated with aging. (c) In females, FSH first binds with specific receptors on ovarian cell membrane. (d) FSH stimulates the secretion of estrogen and progesterone.

Description : What is correct to say about the hormone action in humans? (a) Glucagon is secreted by β-cells of islets of Langerhans and stimulates glycogenolysis. (b) Secretion of thymosins is stimulated ... receptors on ovarian cell membrane. (d) FSH stimulates the secretion of estrogen and progesterone.

Last Answer : (c) In females, FSH first binds with specific receptors on ovarian cell membrane.

What is correct to say about the hormone action in humans ? (1) FSH stimulates the secretion of estrogen and progesterone (2) Glucagon is secreted by -cells of Islets of Langerhans and stimulates glycogenolysis (3) Secretion of thymosins is stimulated with aging (4) If females, FSH first binds with specific receptors on ovarian cell membrane

Description : What is correct to say about the hormone action in humans ? (1) FSH stimulates the secretion of estrogen and progesterone (2) Glucagon is secreted by -cells of Islets of Langerhans and ... stimulated with aging (4) If females, FSH first binds with specific receptors on ovarian cell membrane

Last Answer : (4) If females, FSH first binds with specific receptors on ovarian cell membrane

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, while in spermiation spermatids are formed (c) in spermiogenesis spermatozoa from Sertoli cells are released into the cavity of seminiferous tubules, while in spermiation spermatozoa are formed (d) in spermiogenesis spermatozoa are formed, while in spermiation spermatozoa are released from Sertoli cells into the cavity of seminiferous tubules

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.

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, while in spermiation spermatids are formed. (3) In spermiogenesis spermatozoa from Sertoli cells are released into the cavity of seminiferous tubules, while in spermiation spermatozoa are formed. (4) In spermiogenesis spermatozoa are formed, while in spermiation spermatozoa are released from Sertoli cells into the cavity of seminiferous tubules.

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.

The Leydig cells as found in the human body are the secretory source of (1) Androgens (2) Progesterone (3) Intestinal mucus (4) Glucagon

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

The Leydig cells as found in the human body are the secretory source of: a) Intestinal mucus b) Glucagon c) Androgens d) Progesterone

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

Name the hormone which stimulates the synthesis and secretion of androgens from testis.

Description : Name the hormone which stimulates the synthesis and secretion of androgens from testis.

Last Answer : Name the hormone which stimulates the synthesis and secretion of androgens from testis.

(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

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.

(i) When does oogenesis begin? (ii) Differentiate between the location and function of Sertoli cells and Leydig cells. -Biology

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.

In males, luteinising hormone acts on (A) Leydig cells (B) Sertoli cells (C) Prostate gland (D) All of these

Description : In males, luteinising hormone acts on (A) Leydig cells (B) Sertoli cells (C) Prostate gland (D) All of these

Last Answer : Answer : A

Male hormone is produced in the testis by cells of (a) Sertoli (b) epithelial (c) spermatocytes (d) Leydig.

Description : Male hormone is produced in the testis by cells of (a) Sertoli (b) epithelial (c) spermatocytes (d) Leydig.

Last Answer : (d) Leydig.

Which hormone stimulates the secretion of milk from female? (a) Oxytocin (b) Progesterone (c) LH (d) Prolactin

Description : Which hormone stimulates the secretion of milk from female? (a) Oxytocin (b) Progesterone (c) LH (d) Prolactin

Last Answer : (d) Prolactin

Placental hormone called chorionic gonadotropin (HCG) which stimulates secretion of progesterone by the ovary during pregnancy is

Description : Placental hormone called chorionic gonadotropin (HCG) which stimulates secretion of progesterone by the ovary during pregnancy is

Last Answer : Placental hormone called chorionic gonadotropin (HCG) which stimulates secretion of progesterone by the ovary during ... amine D. Both (1) and (2)

(i) Draw a labelled diagram of the human female reproductive system. (ii) Enumerate the events in the ovary of a human female during (b) Luteal phase of menstrual cycle (a) Follicular phase -Biology

Description : (i) Draw a labelled diagram of the human female reproductive system. (ii) Enumerate the events in the ovary of a human female during (b) Luteal phase of menstrual cycle (a) Follicular phase -Biology

Last Answer : (i)Refer to page no. 43. (2) (ii) (a) Follicular phase The primary follicle in the ovary grow to become fully mature Graafian follicle. Endometrium gets thickened. The ... Luteal phase The remaining parts of ruptured Graafian follicle transforms into corpus luteum, that secretes progesterone.

Assertion : During follicular phase , the primary follicles in the ovary grow to become a fully mature Graafian follicle . Reason : Endometrium of ute

Description : Assertion : During follicular phase , the primary follicles in the ovary grow to become a fully mature Graafian follicle . Reason : Endometrium of ute

Last Answer : Assertion : During follicular phase , the primary follicles in the ovary grow to become a fully mature ... D. If both Assertion & Reason are False.

Which of the following events is not associated with ovulation in human female? (a) Release of secondary oocyte (b) LH surge (c) Decrease in estradiol (d) Full development of Graafian follicle

Description : Which of the following events is not associated with ovulation in human female? (a) Release of secondary oocyte (b) LH surge (c) Decrease in estradiol (d) Full development of Graafian follicle

Last Answer : (c) Decrease in estradiol

Sertoli-Leydig cell tumor?

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.

6.Find the odd one out. (a)spermatid, b)sertoli cell, c)polar body, d)Leydig cell )

Description : 6.Find the odd one out. (a)spermatid, b)sertoli cell, c)polar body, d)Leydig cell )

Last Answer : c)polar body,

The hormone which acts on Sertoli cells and stimulates the process of spermaogenesis is :

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.

Select the hormone INCORRECTLY paired with its target. a) TSH - thyroid gland b) ACTH - anterior pituitary c) LH - ovary or testis d) MSH - melanocytes (pron: meh-lan-o-cite)

Description : Select the hormone INCORRECTLY paired with its target. a) TSH - thyroid gland b) ACTH - anterior pituitary c) LH - ovary or testis d) MSH - melanocytes (pron: meh-lan-o-cite)

Last Answer : ANSWER: D -- MSH - MELANOCYTES

8.The reason for increased amount of progesterone during the secretory phase of menstrual cycle is ---- ---- . ( a)Maturation of secondary follicle, b)Increased secretion of FSH, c)Regression of corpus luteum, d)Formation of corpus luteum from Graafian follicle )

Description : 8.The reason for increased amount of progesterone during the secretory phase of menstrual cycle is ---- ---- . ( a)Maturation of secondary follicle, b)Increased secretion of FSH, c)Regression of corpus luteum, d)Formation of corpus luteum from Graafian follicle )

Last Answer : d)Formation of corpus luteum from Graafian follicle

The rise in basal body temperature at the time of ovulation is because of Options: 1) Decreased estrogen 2) Increased Progesterone 3) Decreased Leutinizing hormone 4) Increased Follicular Stimulating hormone

Description : The rise in basal body temperature at the time of ovulation is because of Options: 1) Decreased estrogen 2) Increased Progesterone 3) Decreased Leutinizing hormone 4) Increased Follicular Stimulating hormone

Last Answer : Correct Answer: 2) Increased Progesterone

LH and FSH are called gonadotrophins. Why?

Description : LH and FSH are called gonadotrophins. Why?

Last Answer : LH and FSH are called gonadotrophins. Why?

Assertion : The level of FSH & LH attain a peak level in the middle of the menstrual cycle . Reason : The FSH & LH surge induces rupture of Graafian f

Description : Assertion : The level of FSH & LH attain a peak level in the middle of the menstrual cycle . Reason : The FSH & LH surge induces rupture of Graafian f

Last Answer : Assertion : The level of FSH & LH attain a peak level in the middle of the menstrual cycle . Reason ... . D. If both Assertion & Reason are False.

LH and FSH are collectively called

Description : LH and FSH are collectively called

Last Answer : LH and FSH are collectively called A. Oxytocin B. Somatotrophins C. Luteotrophic D. Gonadotropin

How are the FSH and LH are released by the hypothalamus?

Description : How are the FSH and LH are released by the hypothalamus?

Last Answer : Need answer

In structure and function, HCG resembles (A) FSH (B) LH (C) GnRH (D) Progesterone

Description : In structure and function, HCG resembles (A) FSH (B) LH (C) GnRH (D) Progesterone

Last Answer : Answer : B

All the following statements about TSH are true except (A) It is a glycoprotein (B) It is made up of α- and β-subunits (C) Receptor recognition involves both the subunits (D) Its subunit is identical with those of FSH and LH

Description : All the following statements about TSH are true except (A) It is a glycoprotein (B) It is made up of α- and β-subunits (C) Receptor recognition involves both the subunits (D) Its subunit is identical with those of FSH and LH

Last Answer : Answer : D

Thyroid stimulating hormone is a dimer. The α-subunits of TSH, LH, FSH are identical. Thus the biological specificity must therefore be β subunit in which the number of amino acids is (A) 78 (B) 112 (C) 130 (D) 199

Description : Thyroid stimulating hormone is a dimer. The α-subunits of TSH, LH, FSH are identical. Thus the biological specificity must therefore be β subunit in which the number of amino acids is (A) 78 (B) 112 (C) 130 (D) 199

Last Answer : Answer : B

Melanogenesis is stimulated by (A) MSH (B) FSH (C) LH (D) HCG

Description : Melanogenesis is stimulated by (A) MSH (B) FSH (C) LH (D) HCG

Last Answer : Answer : A

Tablets to prevent male contraception contain (a) progesterone (b) LH (c) FSH (d) both (b) and (c).

Description : Tablets to prevent male contraception contain (a) progesterone (b) LH (c) FSH (d) both (b) and (c).

Last Answer : (d) both

In the human female, menstruation can be deferred by the administration of (a) combination of FSH and LH (b) combination of estrogen and progesterone (c) FSH only (d) LH only.

Description : In the human female, menstruation can be deferred by the administration of (a) combination of FSH and LH (b) combination of estrogen and progesterone (c) FSH only (d) LH only.

Last Answer : (b) combination of estrogen and progesterone

Mainly which type of hormones control the menstrual cycle in human beings? (a) FSH (b) LH (c) FSH, LH, estrogen (d) progesterone

Description : Mainly which type of hormones control the menstrual cycle in human beings? (a) FSH (b) LH (c) FSH, LH, estrogen (d) progesterone

Last Answer : (a) FSH