AIT TEAS 2022- SCIENCE SECTION LATEST UPDATE

AIT TEAS 2022- SCIENCE SECTION LATEST UPDATE Bronchial epithelial cell membranes possess which of the following? A. microvilli B. cilia C. flagella D. dendrites - Correct Answer- B. Cilia Emulsification of fats ...

AIT TEAS 2022- SCIENCE SECTION LATEST UPDATE Bronchial epithelial cell membranes possess which of the following? A. microvilli B. cilia C. flagella D. dendrites - Correct Answer- B. Cilia Emulsification of fats requires ___ and occurs in the ___. A. amylase; stomach B. bile; stomach C. amylase; small intestine D. bile; small intestine - Correct Answer- D. bile; small intestine In immune functions involving T-helper cells, the T-helper cell most likely engages in which of the following? A. phagocytosis B. cell lysis C. circulating antibody production D. intercellular membrane binding - Correct Answer- D. Intercellular membrane binding In a normal human, once blood is pumped out of the heart, which of the following statements is always true? A. It passes through capillaries before returning to the internal chambers of the heart. B. It has been fully oxygenated C. It immediately enters the aorta D. It travels to the lungs before returning to the heart. - Correct Answer- A. It passes through capillaries before returning to the chambers of the heart Oxygen enters the circulatory system during A. inspiration only B. inspiration and the interval between inspiration and expiration only C. the interval between inspiration and expiration and during expiration only D. continuously throughout the entire respiration cycle - Correct Answer- D. continuously throughout the entire respiratory cycle The integrative functions of the nervous system requires which of the following? A. Sensory input B. Hormonal regulation C. Spinal cord reflexes D. Effector cells - Correct Answer- A. Sensory input The duodenum releases which of the following biologically active proteins? Which of the following will open at the appropriate intervals to allow stomach consents to pass into the duodenum? A. gastroesophageal (GE) sphincter B. pyloric sphincter C. muscular sphincter D. gastroduodenal sphincter - Correct Answer- B. Pyloric sphincter which of the following is NOT a capacity of the human innate immune system? A. Phagocytosis of foreign cells B. Stimulation of fever C. Production of antibodies D. the release of and response to cytokines - Correct Answer- C. Production of antibodies Which of the following correctly describes the relative anatomical positional relationship between two anatomical structures in a normal human adult? A. The heart is ventral to the esophagus B. The scapula is proximal to the vertebral column C. The kidneys are medial to the abdominal aorta D. The urinary bladder is rostral to the pancreas - Correct Answer- A. The heart is ventral to the esophagus In humans, urea is produced in which of the following locations? A. the liver B. the kidney C. the pancreas D. red blood cells - Correct Answer- A. The liver In humans, Which organs listed below dose NOT receive supplies of both oxygenated and deoxygenated blood? A. the lungs B. the heart C. the liver D. the large intestine - Correct Answer- D. the large intestine In humans, which of the skeletal muscles listed below are more often than not under involuntary rather than voluntary control? A. the masseters B. the diaphragm C. the biceps D. the tongue - Correct Answer- B. the diaphragm In humans, the majority (>50%) of water obtained through oral intake is absorbed into the body through which of the following? A. the oral mucosa and the esophagus B. the esophagus and the stomach C. the small intestines D. the large intestines - Correct Answer- C. the small intestines Which of the following cell types bind to pathogen-associated molecular patterns (PAMPs)? A. plasma cells B. dendritic cells C. natural killer (NK) cells D. T-helper cells - Correct Answer- B. Dendritic cells in humans, which of the following is true regarding dietary intake of proteins? A. It does not occur in individuals who are strict vegetarians B. It must include a variety of proteins that consist of all 20 amino acids required for protein synthesis in the body C. Inadequate intake during childhood development can lead to the disease kwashiorkor D. Breakdown begins when proteins reaches the ileum of the small intestine - Correct Answer- C. Inadequate intake during childhood development can lead to the disease kwashiorkor. Which hormone inhibits the release of follicle-stimulating hormone (FSH)? A. Somatostatin B. Luteinizing hormone (LH) C. Oxytocin D. Corticotropin-releasing hormone - Correct Answer- A. Somatostatin What is the corresponding atomic weight if an atom has an atomic mass of 8 AMU? A. 8 AMU B. 8 grams C. Approximately the sum of the masses of the protons and neutrons D. Approximately the sum of all subatomic particles - Correct Answer- B. 8 grams For all biological nucleic acids, a nucleotide is composed of which of the following three components? A. a carboxylic acid. a nitrogenous base, and a pentose sugar B. an amino acid, a hexose sugar, and a nitrogenous base C. a phosphate group, a pentose sugar, and a nitrogenous base D. a phosphate group, a hexose sugar, and an amino acid - Correct Answer- C. a phosphate group, a pentose sugar, and a nitrogenous base CONTINUES...