Hormone that prevents the corpus luteum from degenerating right after a fertiliz
ID: 81514 • Letter: H
Question
Hormone that prevents the corpus luteum from degenerating right after a fertilized ovum is implanted in the endometrium A. Estrogen B. Human chorionic gonadotropin C. Oxytocin D. Progesterone Chemical that reduces surface tension in alveoli A. Immunoglobulin B. Prostaglandin C. Renin D. Surfactant Hormone that stimulates uterine contractions during labor A. Follicle stimulating hormone B. Oxytocin C. Progesterone D. Prolactin Effect of HCI in protein digestion A. Acidifies amino acids B. Breaks peptide bonds C. Denatures protein D. Neutralizes basic amine group The vessel that carries lymph to the lymph node is A. Afferent lymphatic vessel B. Efferent lymphatic vessel Lymphatic capillary D. Lymphatic sinusoid Organ that produces estrogen and progesterone in pregnant female after corpus lutcum degenerates A. Anterior pituitary B. Posterior pituitary C. Ovary D. Placenta Type of antibody that crosses the placenta A. IgA B. IgE C. IgG D. IgMExplanation / Answer
Answer=65] hormone that prevents the corpous leuteum from degerating right after a fertilized ovum is implanted in the endometrium
B] human chorionic gonadotropin (HCG)
Explianation= if oocyte is fertilized & begins to devide ,the corpous luteum persists past its normal two -week lifespan .it is prevented from degerating by the human chorionic gonadotropin (HCG)
HCG is a hormonr produced by the chorion of the embryo as early as 8 -12 days after fertilization .HCG acts like as a LH in stimulating the secretory activity of the corpous luteum & in presence of hCG in maternal blood or urine is an indicator of pregnancy
INCORRECT OPTIONS ARE=
A]estrogen =development of female secondary sexual characteristics
c] Oxytocin = contraction of uterus during childbirth & lactation
D] progesterone = thikning the lining of the uterus each month .the enriched endometrium lining is prepared to receive & nourish a fertilized egg
66] Chemical that reduces the surface tension in alveoli is
D] Surfactant
explination= pulmonary surfactant is a surface active lipoprotein complex formed by II type alveolar cells
The proteins & lipids that make up the surfactant have both hydrophillic & hydrophobic regions
By adsorbing to the air water interface of alveoli,with hydrophillic head groups in the water & hydrophobic tail towards the air ,the main lipid component of the surfactant
Answer=
67] hormone that stimulates uterine contraction during labor is
B] Oxytocin
Explaination= main important role of oxytocin in body is contraction of uterine mucscle during childbirth
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