आधारभूत विज्ञान (Anatomy, Physiology, Biochemistry) – Basic Sciences MCQ

आधारभूत विज्ञान (Anatomy, Physiology, Biochemistry): प्रश्न र उत्तर

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सही: ० / ०

141. Which of the following best describes the role of interstitial fluid in maintaining homeostasis?

     कA. It solely acts as a transport medium for oxygen and carbon dioxide. खB. It serves as a buffer, absorbing excess acid or base from surrounding tissues. गC. It is primarily composed of large protein molecules that maintain cell structure. घD. It's function is to entirely separate the blood vessels from the surrounding cells.
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142. The term ‘myotatone’ refers to:

     कA. The automatic muscle contraction in response to stretching. खB. The voluntary muscle contraction controlled by conscious thought. गC. A type of nerve fiber responsible for pain sensation. घD. The metabolic process involved in muscle relaxation.
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143. Which of the following cell types primarily contributes to the formation of bone matrix during endochondral ossification?

     कA. Osteoblasts. खB. Chondrocytes. गC. Fibroblasts. घD. Melanocytes.
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144. The term 'cardiac output' refers to:

     कA. The volume of blood pumped by the left ventricle per minute. खB. The total resistance encountered by the blood as it circulates through the cardiovascular system. गC. The rate at which the heart beats per minute combined with stroke volume. घD. The amount of oxygen consumed during ventricular systole.
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145. A researcher is investigating a patient's metabolism and observes elevated levels of blood sugar after consuming a carbohydrate-rich meal. Further analysis reveals that the patient’s body struggles to effectively utilize glucose. Which enzyme deficiency would MOST likely explain this clinical scenario?

     कGlucose dehydrogenase खPyruvate kinase गFructose 1,6-bisphosphatase घPhosphofructokinase
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146. The primary metabolic defect associated with Von Gierke disease (Glycogen Storage Disease Type I) involves a deficiency in which enzyme?

     कGlucocerebrosidase खGlycogen phosphorylase गLysosomal alpha-glucosidase घGalactose-1-phosphate uridyltransferase
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147. A patient presents with symptoms including fatigue, muscle weakness, and elevated levels of creatine kinase (CK). Biochemical analysis reveals a significantly increased serum concentration of methylmalonic acid. Which vitamin deficiency is MOST likely responsible for this condition?

     कVitamin B1 (Thiamine) खVitamin B6 (Pyridoxine) गVitamin B12 (Cobalamin) घVitamin C
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148. Which of the following statements best describes the primary function of the glomerular capillaries in the nephron?

     कFiltration of large proteins and waste products from the blood खSecretion of hormones that regulate blood pressure गReabsorption of glucose and amino acids back into the bloodstream घSynthesis of urea as a byproduct of protein metabolism
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149. The Bohr effect demonstrates which relationship between pH and oxygen-binding affinity?

     कA) Increased pH decreases oxygen binding affinity; decreased pH increases it. खB) Decreased pH decreases oxygen binding affinity; increased pH increases it. गC) No correlation exists between pH and oxygen binding affinity. घD) A constant increase in pH always results in higher oxygen binding.
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150. Which of the following best describes the role of the epiglottis?

     कA) To increase the surface area of the trachea for efficient gas exchange. खB) To prevent food and liquids from entering the larynx during swallowing. गC) To directly control the movement of muscles involved in breathing. घD) To amplify sound vibrations for speech production.
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