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تقريبا هاي 31 سؤال احدهم رسلها للبوت شكرًا ع تعاونكم الدائم ويانه ❤️ يا رب الكل ينجح

What is the genetic makeup of a male zygote resulting from fertilization with a Y-containing sperm? a. XY b. XX c. YY d. YX e. XXX The metabolic rate is least affected by an increase in the plasma level of: a. TSH b. TRH c. TBG d. Free T4 e. Free T3 Which of the following thyroid hormone carrying proteins does have the largest capacity to bind T4? a. Thyroxine-binding globulin b. Thyroxine-binding prealbumin c. Prealbumin d. Transthyretin e. Albumin Steroid hormones mediate their action by binding to a family of cytoplasmic proteins known as nuclear receptors. After ligand-receptor binding within the cytoplasm, which of the following is TRUE ? a. The receptor–ligand complex translocates to the nucleus b. The receptor–ligand complex dimerizes before binding to DNA c. The gene transcription in the target tissue can increase d. The gene transcription in the target tissue can decrease e. All of the above اجا Which of the following forms of growth hormone is the most abundant form secreted by the anterior pituitary gland ? a. hGH-N (human growth hormone- normal form) b. hGH-V (human growth hormone- variant form) c. hCS (human chorionic somatomammotropin) d. A & B e. B & C Corticosteroid is mainly bound in the circulation to an α globulin called: a. Transferrin b. Transcortin c. Transthyretin d. Transamine Persons with type …………… blood are “universal Doners” A) A B) AB C) O D) HBA1C E) B The conversion of fibrinogen to fibrin is catalyzed by…………… A) Prothrombin B) Thrombin C) Factor X D) Factor XII E) Factor IX. O2 binds to the Fe2+ in the heme moiety of hemoglobin to form……………… A) Oxyhemoglobin. B) Methemoglobin. C) Carboxyhemoglobin D) HbA1c E) None of the above. H gene in A) type A B) type B C) type AB D) type O E) All of the above Which hormone primarily increases calcium absorption from the intestine? A) Parathyroid hormone (PTH) B) Calcitonin C) Thyroid hormone D) 1,25-Dihydroxycholecalciferol (active vitamin D) E) Insulin. What chemical stimuli for gastric secretion is released from enterochromaffin-like cells (ECL) in gastric glands? a) Gastrin hormone b) Histamine c) Acetylcholine (Ach) d) Gastrin-releasing peptide e) Bombesin Which cells in the stomach secrete HCl and intrinsic factor? a) Parietal cells b) Chief cells c) Mucus-secreting cells d) Bicarbonate-secreting cells e) G cells What is the function of mucins in saliva? a) Protecting the oral cavity from bacteria b) Lubricating the food bolus c) Digesting starch d) Neutralizing gastric secretions e) Facilitating swallowing The functions of saliva include the following except: a) Cleaning the mouth b) Killing bacteria c) Facilitation of speech b) Facilitates absorption nutrients E) none of them Which pathway is activated by growth hormone in the body? a. MAPK pathway b. JAK2–STAT pathway c. PI3K pathway d. Wnt pathway Which type of feedback loop involves the enhancement or continued stimulation of the original release mechanism/stimulus? a. Negative feedback loop b. Neutral feedback loop c. Dampening feedback loop d. Positive feedback loop The conversion of fibrinogen to fibrin is catalyzed by…………… A) Prothrombin B) Thrombin C) Factor X D) Factor XII E) Factor IX. The growth hormone (GH) is NOT: A. Lipogenic B. Proteogenic C. Ketogenic D. Diabetogenic E. Insulinogenic Which of the following is a potent platelet-aggregating factor ? a. Prostacyclin b. Nitric oxide c. Plasmin d. Tx A2 e. Thrombomodulin What is the major adrenal androgen ? a. Androstenedione b. Testosterone c.17-ketosteroid d. Dihydrotestosterone e. Tetrahydrotestosterone How is fructose transport across the cell membrane considered in the small intestine? a. Active transport b. Passive diffusion c. Secondary active transport d. Facilitated transport Which cell type in the islets of Langerhans secretes glcgan? a. A cells b. B cells c. D cells d. F cells هذا بالعكس. اجا

Which enzyme converts testosterone to DHT in target cells? a. Testase b. Androsterone c. 5α-reductase d. Estrogenase What is the function of the thyroid gland? 1-hormone that regulates circulating levels of calcium. 2-secrete the thyroid hormones, 3-both منو اكبر Wbc than Rbc RBC Than wbc What does CCK trigger in bile ejection? a. Relaxation of the gallbladder b. Contraction of the gallbladder c. Release of more bile into the intestines d. Closure of the sphincter of Odd a) Decreases the number of glucose transporters (GLUTs) in cell membranes b) Increases the activity of glucokinase in the cell membranes c) Enhances glucose entry by increasing the number of GLUTs in cell membranes d) Inhibits secondary active transport of glucose with Na+ e) Induces phosphorylation of glucose outside the cel Steroid action of Nuclear Cytoplama cell membrane 42.How are the hypothalamus and the posterior lobe of the pituitary gland connected? A) Neural connections B) Vascular connections C) Hormonal connections D) Electrical connections E) Chemical connections They are synthesized in the cell bodies of magnocellular neurons in the supraoptic and paraventricular nuclei and transported down the axons of these neurons to their endings in the posterior lobe جان جوابه AVP AND OXYTOXINE