TEAS Science Practice Test Set 9

Select one answer.

• A substance with a pH of 3 is two times more alkaline than a substance with a pH of 4.
• A substance with a pH of 3 is two times more acidic than a substance with a pH of 4.
• A substance with a pH of 3 is 10 times more alkaline than a substance with a pH of 4.
• A substance with a pH of 3 is 10 times more acidic than a substance with a pH of 4.

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• Atrioventricular node
• Sinoatrial node
• Bundles of His
• Purkinje fibers

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• All the rose bushes are watered equally throughout the experiment.
• The number of flowers on the rose bushes are counted each week.
• Fertilizer will increase the number of flowers on the rose bushes.
• A rose bush that will not be fertilized is selected.

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• Tocopherol
• Cyanocobalamin
• Rhodopsin
• Pyridoxine

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• Salt leaves the nerve cells, leading to nerve cell lysis.
• Water enters the nerve cells, leading to nerve cell swelling.
• Salt leaves the nerve cells, leading to abnormal nerve signaling.
• Water leaves the nerve cells, leading to nerve cell crenation.

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

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• Proximal convoluted tubule
• Glomerular capsule
• Collecting duct
• Loop of Henle

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• Lipids
• DNA
• RNA
• Proteins

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• Measles
• Cystic fibrosis
• Chagas disease
• Herpes

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• Sodium ions are released into the neuromuscular synapse.
• Receptor proteins are secreted from the sarcolemma.
• An action potential is generated along the sarcolemma of the muscle fiber.
• Chemically gated calcium channels on the sarcolemma are opened by acetylcholine.