Description : (a) IN WHICH PART OF HUMAN FEMALE REPRODUCTIVE SYSTEM DO THE FOLLOWING EVENTS TAKE PLACE. (i) RELEASE OF FIRST POLAR BODY (ii) RELEASE OF SECOND POLAR BODY (iii) FERTILISATION (iv) IMPLANTATION (b) NAME TWO HORMONES SECREATED ONLY DURING PREGNANCY.
Last Answer : ANS (a) (i) OVARY (ii) FALLOPIAN TUBE (iii) AMPULLA-ISTHAMUS JUNCTION OF FALLOPIAN TUBE (iv) ENDOMETRIUM LINING OF UTERUS (b) HUMAN CHORIONIC GONADOTROPIN AND HUMAN PLACENTAL LACTOGEN
Description : Assertion : hCG , hPL and relaxin are produced in women only during pregnancy . Reason : These hormones are produced by placenta .
Last Answer : Assertion : hCG , hPL and relaxin are produced in women only during pregnancy . Reason : These hormones ... . D. If both Assertion & Reason are False.
Description : What are the hormones produced in the female?
Last Answer : Estrogen
Description : (i) How is placenta formed in human female? (ii) Name any two hormones which are secreted by it and are also present in a non-pregnant woman. [ -Biology
Last Answer : i)After implantation of blastocyst, the finger-like projections called chorionic villi, appear on the trophoblast and is surrounded by uterine tissue and maternal blood which become interdigitated with each ... by placenta that are also present in a non-pregnant women are oestrogen and progesterone.
Description : Which of the following hormones are secreted in large quantities during pregnancy in woment
Last Answer : Which of the following hormones are secreted in large quantities during pregnancy in woment A. hCG, ... estrogen and estradiol D. hCG, and hPL.
Description : Study the given figure below and answer the question that follow important-questions-for-class-12-biology-cbse-fertilisation-pregnancy-and-embryonic-development-t-33-3 (i)Name the stage of human embryo the ... implantation in the uterus. (iv)Where are the stem cells located in this embryo? -Biology
Last Answer : (i)The stage is blastocyst. (ii) A—Trophoblast. It helps in attachment to endometrium during implantation and provides nourishment to developing embryo. (iii) Inner cell mass acts as precursor to embryo ... into ectoderm and endoderm. (iv) Stem cells are located in inner cell mass of embryo.
Description : Hormones act only on specific organs or tissues. These are called (A) Active sites (B) Reaction centre (C) Target organ/Tissue(D) Physiological site HORMONE METABOLISM 231
Last Answer : Answer : C
Description : What is placenta? Mention its role during pregnancy? -Biology
Last Answer : The placenta is an organ that develops in your uterus during pregnancy. This structure provides oxygen and nutrients to your growing baby and removes waste products from your baby's blood.
Description : Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female? (a) Maintenance of the hypertrophical endometrial lining (b) ... the blood stream (c) Retention of well-developed corpus luteum (d) Fertilisation of the ovum
Last Answer : (b) Maintenance of high concentration of sex- hormones in the blood stream
Description : Hormones secreted by the placenta to maintain pregnancy are (a) hCG, hPL, progestogens, prolactin (b) hCG, hPL, estrogens, relaxin, oxytocin (c) hCG, hPL, progestogens, estrogens (d) hCG, progestogens, estrogens, glucocorticoids.
Last Answer : ) hCG, hPL, progestogens, estrogens
Description : 3 Which of the following hormones is more directly associated wth the maintenance of pregnancy? a) Estrogen b) Progesterone c) LH d) FSH
Last Answer : ANS: b Progesterone
Description : Hormones secreted by the placenta to maintain pregnancy are (1) hCG, hPL, progestogens, prolactin (2) hCG, hPL, estrogens, relaxin, oxytocin (3) hCG, hPL, progestogens, estrogens (4) hCG, progestogens, estrogens, glucocorticoids
Last Answer : (3) hCG, hPL, progestogens, estrogens
Description : Given below is an incomplete table on hormones, their source glands and one major effect of each human body. Identify the option representing correct grouping of hormone its gland and ... hormone (b) Placenta Insulin Vasopressin (c) Ovary Insulin Calcitonin (d) Placenta Glucagon Calcitonin
Last Answer : (a) Ovary Glucagon Growth hormone
Description : Which one of the following statements is incorrect about menstruation? (a) At menopause in the female, there is especially abrupt increase in gonadotropic hormones. (b) The beginning of the cycle of ... normal menstruation about 40 mL blood is lost. (d) The menstrual fluid can easily clot.
Last Answer : (d) The menstrual fluid can easily clot.
Description : Which gland of female undergo differentiation during pregnancy?
Last Answer : Which gland of female undergo differentiation during pregnancy? A. Thyroid B. Mammary C. Pituitary D. Thymus
Description : Which of the following is NOT correct about hormones? A) Hormones are generally found across the animal kingdom. B) Hormones may be used at a distance from where the hormone is made. C) ... target cell. E) Hormones are directed to the target organ and avoid contact with non-target cells.
Last Answer : E) Hormones are directed to the target organ and avoid contact with non-target cells.
Description : Which of the following is NOT true about hormones? A) Hormones are secreted into the bloodstream. B) Hormones are released from exocrine glands. C) Hormones may be classified as peptides or steroids. ... a target organ. E) Cells that react to a hormone have specific receptors for that hormone.
Last Answer : B) Hormones are released from exocrine glands.
Description : Describe the post-zygotic events leading to implantation and placenta formation in humans. Mention any two functions of placenta. [All India 2010] or Explain the process of fertilisation in human female ... events in a sequential order up to implantation of the embryo. [Foreign 2010] -Biology
Last Answer : Post-zygotic events leading to implantation and placenta formation. After implantation of blastocyst, the finger-like projections called chorionic villi, appear on the trophoblast and is surrounded by ... acts as an endocrine gland and secretes hormones like hPL, hCG, oestrogen and progesterone.
Description : Human menstrual cycle is controlled by hormones produced and secreted by :
Last Answer : Human menstrual cycle is controlled by hormones produced and secreted by : A. Pituitary and Ovary B. Pituitary and Uterus C. Only uterus D. Only Ovary
Description : A 19 year-old female is referred following a visit to the dentist where marked erosion of her teeth was noted. She was entirely asymptomatic and her only medication was the oral contraceptive pill ... ) Bulimia nervosa 2) Conn's syndrome 3) Laxative abuse 4) Pregnancy 5) Primary hypoparathyroidism
Last Answer : Answers-5 This patient has tooth erosion associated with hypokalaemic metabolic alkalosis and hypocalcaemia. This suggests a diagnosis of hypoparathyroidism. Conn's is unlikely in this age group, is ... raised alkaline phosphatase would not be expected. Early pregnancy would not fit this picture.
Description : How many polar bodies are produced during the entire process of oogenesis in unmarried human female ?
Last Answer : How many polar bodies are produced during the entire process of oogenesis in unmarried human female ? A. Three B. Two C. One D. Four
Description : The hormones produced during emotional stress is
Last Answer : The hormones produced during emotional stress is A. Melatonin B. Thyroxine C. Calcitonin D. Adrenaline
Description : Mention the hormones secreted by islets of Langerhans. State their function.
Last Answer : The hormones secreted by islets of Langerhans are insulin and glucagon. The functions are: Insulin promotes the conversion of glucose to glycogen for storage in liver and muscles. It is secreted ... the conversion of glycogen into glucose. It is secreted when blood glucose levels are low.
Description : In what organ in the human body is insulin produced?
Last Answer : ANSWER: PANCREAS
Description : During late pregnancy, the major source of progesterone is (A) Adrenal cortex (B) Placenta (C) Corpus luteum (D) Graafian follicles
Last Answer : Answer : B
Description : Match the source gland with its respective hormone and function and select the correct option. Source Hormone Function gland (a) Anterior Oxytocin Contraction of uterus pituitary muscles during ... (c) Corpus Estrogen Supports pregnancy luteum (d) Thyroid Thyroxine Regulates blood calcium level
Last Answer : (b) Posterior Vasopressin Stimulates pituitary reabsorption of water in the distal tubules in the nephron
Description : Which of the following hormones stimulates the secretion of milk from female ?
Last Answer : Which of the following hormones stimulates the secretion of milk from female ? A. LH B. Prolactin C. Oxytocin D. Progesterone
Description : Which of the following hormones is primarily responsible for stimulating the production of progesterone? a) Luteinizing hormone Luteinizing hormone is released by the pituitary gland. b) Follicle-stimulating ... , are involved in early development of the follicle and also affect the female libido.
Last Answer : a) Luteinizing hormone Luteinizing hormone is released by the pituitary gland.
Description : In 1977, this American female scientist shared the Nobel Prize in medicine for her work in the development of radioimmunoassays of peptide hormones. In awarding the prize, the Nobel Committee described ... about a revolution in biolocial and medical research". Who is this eminent woman scientist?
Last Answer : ANSWER: (ROSALYN) YALOW
Description : Mention the hormones secreted by adrenal medulla.
Last Answer : Adrenal medulla secretes three hormones adrenaline, nor-adrenaline and dopamine.
Description : Given below is an incomplete table about certain hormones , their source glands and one major effect of each on the body in humans . Identify the corr
Last Answer : Given below is an incomplete table about certain hormones , their source glands and one major effect of ... Placenta" , "Glucagon" , "Calcitonin"):}`
Description : Male and female sex hormone respectivley which stimulate development of sex organ, sexual behaviour, gametogensis are
Last Answer : Male and female sex hormone respectivley which stimulate development of sex organ, sexual behaviour, gametogensis are
Description : Which organ of the female reproductive system sheds an unfertilized egg every month?
Last Answer : The uterus has a lining of blood in it. When the unfertilized egg passes through the uterus it sheds this lining which causes the blood to come out.
Description : In bryoph4tes the female sex organ is called: (a) Archegonium (b) Antheridium (c) Carpogonium (d) Ascogonium
Last Answer : Ans. ((a))
Description : Mention the two methods of co-ordination of organ system in multi-cellular organisms.
Last Answer : Co-ordination of various organ systems in multi-cellular organisms is brought about in two ways a) Control by nervous system b) Control by endocrine system
Description : Which of the following hormones is produced in leaves ?
Last Answer : Florigen is the hormone produced in the leaves.
Description : Hormones for the menstrual cycle are produced by
Last Answer : Hormones for the menstrual cycle are produced by A. Ovaries only B. Uterus only C. Ovaries and uterus D. Ovaries and anterior pitutary.
Description : How are hormones produced by endocrine glands typically transported to target cells?
Last Answer : What is the answer ?
Description : What are the 2 hormones produced by the endocrine system?
Last Answer : Need answer
Description : What hormones are produced by the testes?
Last Answer : Only one sex hormone called testosterone.
Description : Insulin like growth hormones are produced by (A) Hypophysis (B) Liver (C) Pancreas (D) Thyroid
Description : Cell regulation can be thought of as the effector side of cell communication. Most commonly cell regulation occurs by means of extracellular chemical messengers. Which of the following statement(s ... d. Most hormones, local mediators, and neurotransmitters readily cross the cell plasma membrane
Last Answer : Answer: b, c Depending on how the extracellular messenger arrives, cell regulation can be classified as paracrine, endocrine, or neurocrine. In paracrine regulation, a chemical messenger ... , local mediators, and neurotransmitters are water-soluble and cannot readily cross the plasma membrane
Description : The harmful substances produced by the microbes are known as – (1) Antibiotics (2) Pollutants (3) Hormones (4) Toxins
Last Answer : (4) Toxins Explanation: Toxins are substances created by plants and animals that are poisonous to humans. Most toxins that cause problems in humans are released by microor-ganisms such as bacteria, viruses, fungi, rickettsiae or protozoa. For example, cholera is due to a bacterial toxin.
Description : Name the hormones produced by gonads.
Last Answer : a) Testis secretes the male sex hormone androgen. b) Ovaries secretes the female sex hormone estrogen
Description : The following are true about calcium regulating hormones: a. calcitonin increases the plasma calcium concentration b. vitamin D is produced in the skin c. vitamin D is metabolized to its active form in the liver and kidney. d. vitamin D increases calcium absorption from the gut
Last Answer : vitamin D increases calcium absorption from the gut
Description : Several hormones like hCG, hPL, estrogen, progesterone are produced by (a) ovary (b) placenta (c) fallopian tube (d) pituitary.
Last Answer : b) placenta
Description : Which of the following statements is correct in relation to the endocrine system? (a) Non-nutrient chemicals produced by the body in trace amounts that act as intercellular messenger are known as ... in the body like gastrointestinal tract, heart, kidney and liver do not produce any hormones.
Last Answer : (a) Non-nutrient chemicals produced by the body in trace amounts that act as intercellular messenger are known as hormones.
Description : Pancreatic juice and hormones of pancreas are produced by (a) same cells (b) same cells at different times (c) statment is wrong (d) different cells.
Last Answer : (d) different cells.
Description : Which of the following endocrine glands does NOT produce its own hormones but stores hormones produced by the hypothalamus? A) thyroid B) adrenal cortex C) adrenal medulla D) posterior pituitary E) anterior pituitary
Last Answer : D) posterior pituitary
Description : A pheromone is A) an endorphin released within the anterior pituitary. B) a growth factor related to the production of tumors. C) a product of a neurosecretory cell that acts on ... ) a regulatory hormone that stimulates or inhibits the release of hormones produced by other endocrine glands.
Last Answer : D) a chemical released by one animal to affect the behavior of another animal.