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ATI TEAS Version 7 – Science

Question 3: A myocardial infarction affects which of the following blood vessels of the heart?

• Aorta
• Coronary (selected)
• Vena cava
• Pulmonary

Question 4: Which of the following processes causes most of the carbon dioxide from the blood to move into the alveoli?

• Diffusion down a concentration gradient (selected)
• Conversion to carbon monoxide
• Passive transport using carrier proteins
• Active transport using energy

Question 5: Which of the following ions binds to the troponin complex, initiating contraction of a muscle?

• Calcium (selected)
• Potassium
• Phosphorus
• Sodium

Question 6: Nitrogen gas is an extremely stable molecule because its structure contains which of the following?

• Hydrogen bonds
• Triple covalent bonds (selected)
• Resonance bonds
• Ionic bonds

ATI TEAS Version 7 – Science