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Practice Problems (TEAS 2021-2022). Precise questions and accurate answers. Rated A+

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Which of the following describes the function of the ribosome? a. protein synthesis b. energy production c. cell movement d. storage of molecules - a. protein synthesis Because muscle cells require large amounts of energy to function correctly, which organelles would be prevalent in those types of cells? a. ribosomes b. mitochondria c. cytoskeleton d. cell membrane - b. mitochondria Which of the following organelles is responsible for storing genetic information? a. nucleus b. ribosomes c. cell membrane d. lysosomes - a. nucleus In the human body, which of the following organs is in a superior position to the lungs? a. stomach b. trachea c. spleen d. heart - b. trachea Describe the part of the arm that is most distal to the shoulder of the human body. - Distal refers to farthest away. The thumb is farthest away from the shoulder of the body. Which of the following structures changes the volume of the lungs? a. alveoli b. heart c. trachea d. diaphragm - d. diaphragm Which of the following statement best explains how the structure of alveoli relates to its function? a. alveoli are large to maximize gas exchange b. the walls the alveoli are thin to increase rate of diffusion c. the walls of the alveoli are thick to prevent pressure buildup d. alveoli are small to increase the transportation of cells - b. the walls the alveoli are thin to increase rate of diffusion The thin walls decreases the distance between the air and bloodstream, increasing the rate of diffusion. Which of the following statement best describes the primary function of the respiratory system? a. it transports oxygen and carbon dioxide to cells all over the body. b. it involves the inhalation and exhalation of gases into the environment c. it exchanges gases between the blood and the air in an environment .d. it maintains proper blood level pH - c. it exchanges gases between the blood and the air in an environment Which of the following conditions causes a narrowing of airways in the respiratory system? a. influenza b. bronchitis c. asthma d. pneumonia - c. asthma Describe what will occur in the blood if the tidal volume in the lungs increases. - Increasing the tidal volume will increase diffusion of carbon dioxide out of the bloodstream. Oxygen will increase in the bloodstream. Changing the tidal volume will not have a direct effect on heart rate or surfactant. Which of the following lists the primary parts of the heart? a. blood cells b. muscle tissue split into two chambers c. muscle tissue split into four chambers d. four ventricles - c. muscle tissue split into four chambers Which of the following blood components is responsible for transporting oxygen? a. red blood cells b. plasma c. dissolved gases d. leukocytes - a. red blood cells Red blood cells contains hemoglobin, which transport oxygen. Which of the following chambers pumps blood toward the lungs? a. left ventricle b. right atrium c. left ventricle d. right ventricle - d. right ventricle Left atrium: accepts blood from lungs

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