ATI TEAS 7
TEAS Test 7 science Questions
Question 1 of 5
Long-term potentiation (LTP) is a process in the brain associated with:
Correct Answer: B
Rationale: Long-term potentiation (LTP) is a process in the brain strongly associated with memory formation. It involves the strengthening of synapses between neurons, which is crucial for learning and memory. Sensory perception, muscle control, and emotional regulation are not directly related to LTP. Sensory perception involves the detection and processing of sensory information, muscle control pertains to movement coordination, and emotional regulation refers to the management of emotions, none of which are primarily influenced by LTP.
Question 2 of 5
What is the primary function of coronary arteries?
Correct Answer: B
Rationale: The primary function of coronary arteries is to supply oxygenated blood to the heart muscle itself. The heart is a muscle that needs a constant supply of oxygen and nutrients to function properly. Coronary arteries branch off the aorta and specifically deliver oxygenated blood to the heart muscle, ensuring its proper function.
Choice A is incorrect because coronary arteries do not deliver blood throughout the entire body but specifically to the heart.
Choice C is incorrect as coronary arteries carry oxygenated blood away from the heart.
Choice D is incorrect as the primary function of the coronary arteries is not to regulate blood pressure but rather to provide oxygenated blood to the heart muscle.
Question 3 of 5
What does the term 'colligative property' refer to in solutions?
Correct Answer: B
Rationale: Colligative properties are properties of a solution that depend on the concentration of solute particles, regardless of the identity of the solute. These properties include lowering the vapor pressure, elevation of boiling point, depression of freezing point, and osmotic pressure. The concentration of solute particles affects these properties, not the nature, temperature, or pressure of the solution.
Therefore, choice B is the correct answer as it accurately reflects the definition of colligative properties.
Choices A, C, and D are incorrect because colligative properties are not based on the nature, temperature, or pressure of the solute, but rather on the concentration of solute particles in the solution.
Question 4 of 5
Bile, stored in the gallbladder, aids in the digestion of which nutrient?
Correct Answer: C
Rationale: Bile, produced by the liver and stored in the gallbladder, aids in the digestion of fats. Bile emulsifies fats, breaking them down into smaller droplets to increase the efficiency of fat digestion by enzymes like lipase. This process enhances the absorption of fats in the small intestine, facilitating the body's utilization of essential fatty acids and fat-soluble vitamins. Carbohydrates are primarily broken down by enzymes like amylase, proteins by pepsin and other proteases, and vitamins have varying digestion and absorption processes, which do not involve bile.
Therefore, the correct answer is fats as they are directly influenced by bile in the digestion process.
Question 5 of 5
What is the term for the maximum amount of solute that can dissolve in a solvent at a specific temperature and pressure?
Correct Answer: B
Rationale: Solubility is the correct term for the maximum amount of solute that can dissolve in a solvent at a specific temperature and pressure. Molarity is a measure of concentration, not the maximum amount that can dissolve. Concentration is a general term for the amount of solute present in a given amount of solvent. Saturation is related to solubility but specifically refers to a state where no more solute can be dissolved in the solvent.