NEET Test Series from KOTA - 10 Papers In MS WORD
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Human Reproduction(NCERT)
286465
Menstruation is initiated by
1 a sudden release of FSH from the anterior pituitary.
2 a lack of estrogens and progesterone due to degeneration of the corpus luteum.
3 an increased release of estrogens and progesterone from the corpus luteum.
4 a sudden drop in LH.
Explanation:
(b) A decrease in estrogen and progesterone as the corpus luteum degenerates (in the absence of pregnancy) initiates menstruation.
NCERT Page-50 / N-34
Human Reproduction(NCERT)
286466
Study the given figure and identify the correct event occurring in this.
1 Role of pituitary hormones levels.
2 Events occurring in uterine tissues.
3 Role of ovarian hormone levels and growth of ovarian follicles.
4 Both (a.)and (c.).
Explanation:
(c) The given figure shows the role of ovarian hormones and growth of ovarian follicles in the various phases of menstrual cycle.
NCERT Page-50 / N-34
Human Reproduction(NCERT)
286467
Which of the following hormones attains a peak level in the middle of menstrual cycle?
1 LH and estrogen
2 $\text{FSH}$ and progesterone
3 FSH and LH
4 Estrogen and progesterone
Explanation:
(c) Both LH and FSH attain a peak level in the middle of menstrual cycle (about 14th day) resulting in ovulation.
NCERT Page-51 / N-34
Human Reproduction(NCERT)
286468
In normal pregnant women, the amount of total gonadotropin activity was assessed. The result expected was
1 high level of circulating FSH and LH in the uterus to stimulate implantation of the embryo
2 high level of circulating hCG to stimulate endometrial thickening
3 high levels of FSH and LH in uterus to stimulate endometrial thickening
4 high levels of circulating hCG to stimulate estrogen and progesterone synthesis.
Explanation:
(d) Placenta acts as an endocrine gland during pregnancy and produces several hormones include human chorionic gonadotropin (hCG), estrogen, progesterone and so on. hCG stimulates the corpus luteum to secrete progesterone.
1 a sudden release of FSH from the anterior pituitary.
2 a lack of estrogens and progesterone due to degeneration of the corpus luteum.
3 an increased release of estrogens and progesterone from the corpus luteum.
4 a sudden drop in LH.
Explanation:
(b) A decrease in estrogen and progesterone as the corpus luteum degenerates (in the absence of pregnancy) initiates menstruation.
NCERT Page-50 / N-34
Human Reproduction(NCERT)
286466
Study the given figure and identify the correct event occurring in this.
1 Role of pituitary hormones levels.
2 Events occurring in uterine tissues.
3 Role of ovarian hormone levels and growth of ovarian follicles.
4 Both (a.)and (c.).
Explanation:
(c) The given figure shows the role of ovarian hormones and growth of ovarian follicles in the various phases of menstrual cycle.
NCERT Page-50 / N-34
Human Reproduction(NCERT)
286467
Which of the following hormones attains a peak level in the middle of menstrual cycle?
1 LH and estrogen
2 $\text{FSH}$ and progesterone
3 FSH and LH
4 Estrogen and progesterone
Explanation:
(c) Both LH and FSH attain a peak level in the middle of menstrual cycle (about 14th day) resulting in ovulation.
NCERT Page-51 / N-34
Human Reproduction(NCERT)
286468
In normal pregnant women, the amount of total gonadotropin activity was assessed. The result expected was
1 high level of circulating FSH and LH in the uterus to stimulate implantation of the embryo
2 high level of circulating hCG to stimulate endometrial thickening
3 high levels of FSH and LH in uterus to stimulate endometrial thickening
4 high levels of circulating hCG to stimulate estrogen and progesterone synthesis.
Explanation:
(d) Placenta acts as an endocrine gland during pregnancy and produces several hormones include human chorionic gonadotropin (hCG), estrogen, progesterone and so on. hCG stimulates the corpus luteum to secrete progesterone.
1 a sudden release of FSH from the anterior pituitary.
2 a lack of estrogens and progesterone due to degeneration of the corpus luteum.
3 an increased release of estrogens and progesterone from the corpus luteum.
4 a sudden drop in LH.
Explanation:
(b) A decrease in estrogen and progesterone as the corpus luteum degenerates (in the absence of pregnancy) initiates menstruation.
NCERT Page-50 / N-34
Human Reproduction(NCERT)
286466
Study the given figure and identify the correct event occurring in this.
1 Role of pituitary hormones levels.
2 Events occurring in uterine tissues.
3 Role of ovarian hormone levels and growth of ovarian follicles.
4 Both (a.)and (c.).
Explanation:
(c) The given figure shows the role of ovarian hormones and growth of ovarian follicles in the various phases of menstrual cycle.
NCERT Page-50 / N-34
Human Reproduction(NCERT)
286467
Which of the following hormones attains a peak level in the middle of menstrual cycle?
1 LH and estrogen
2 $\text{FSH}$ and progesterone
3 FSH and LH
4 Estrogen and progesterone
Explanation:
(c) Both LH and FSH attain a peak level in the middle of menstrual cycle (about 14th day) resulting in ovulation.
NCERT Page-51 / N-34
Human Reproduction(NCERT)
286468
In normal pregnant women, the amount of total gonadotropin activity was assessed. The result expected was
1 high level of circulating FSH and LH in the uterus to stimulate implantation of the embryo
2 high level of circulating hCG to stimulate endometrial thickening
3 high levels of FSH and LH in uterus to stimulate endometrial thickening
4 high levels of circulating hCG to stimulate estrogen and progesterone synthesis.
Explanation:
(d) Placenta acts as an endocrine gland during pregnancy and produces several hormones include human chorionic gonadotropin (hCG), estrogen, progesterone and so on. hCG stimulates the corpus luteum to secrete progesterone.
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
Human Reproduction(NCERT)
286465
Menstruation is initiated by
1 a sudden release of FSH from the anterior pituitary.
2 a lack of estrogens and progesterone due to degeneration of the corpus luteum.
3 an increased release of estrogens and progesterone from the corpus luteum.
4 a sudden drop in LH.
Explanation:
(b) A decrease in estrogen and progesterone as the corpus luteum degenerates (in the absence of pregnancy) initiates menstruation.
NCERT Page-50 / N-34
Human Reproduction(NCERT)
286466
Study the given figure and identify the correct event occurring in this.
1 Role of pituitary hormones levels.
2 Events occurring in uterine tissues.
3 Role of ovarian hormone levels and growth of ovarian follicles.
4 Both (a.)and (c.).
Explanation:
(c) The given figure shows the role of ovarian hormones and growth of ovarian follicles in the various phases of menstrual cycle.
NCERT Page-50 / N-34
Human Reproduction(NCERT)
286467
Which of the following hormones attains a peak level in the middle of menstrual cycle?
1 LH and estrogen
2 $\text{FSH}$ and progesterone
3 FSH and LH
4 Estrogen and progesterone
Explanation:
(c) Both LH and FSH attain a peak level in the middle of menstrual cycle (about 14th day) resulting in ovulation.
NCERT Page-51 / N-34
Human Reproduction(NCERT)
286468
In normal pregnant women, the amount of total gonadotropin activity was assessed. The result expected was
1 high level of circulating FSH and LH in the uterus to stimulate implantation of the embryo
2 high level of circulating hCG to stimulate endometrial thickening
3 high levels of FSH and LH in uterus to stimulate endometrial thickening
4 high levels of circulating hCG to stimulate estrogen and progesterone synthesis.
Explanation:
(d) Placenta acts as an endocrine gland during pregnancy and produces several hormones include human chorionic gonadotropin (hCG), estrogen, progesterone and so on. hCG stimulates the corpus luteum to secrete progesterone.
