Two solutions of different concentrations of glucose are separated by a membrane that allows both glucose and water to pass through. When dynamic equilibrium is reached, there will be:
no movement of water or glucose.
movement of glucose but not water.
movement of water but not glucose.
an even exchange of material across the membrane.
The Correct Answer is D
A. no movement of water or glucose: At dynamic equilibrium, movement does not stop; rather, it happens at equal rates in both directions.
B. movement of glucose but not water: If the membrane is permeable to both, both will move to equalize concentrations.
C. movement of water but not glucose: If the membrane is permeable to both, both will move to equalize concentrations.
D. an even exchange of material: Particles continue to cross the membrane, but there is no net change in concentration because the rate of movement is equal in both directions.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. only one parent is needed: This is an advantage of asexual reproduction, as it is faster and less energy-intensive.
B. all the offspring are identical: This is a feature of asexual reproduction, but it is often a disadvantage because it makes the population vulnerable to environmental changes.
C. there is greater diversity in the offspring: Sexual reproduction reshuffles genes, creating unique individuals who are more likely to survive changing environments.
D. more offspring are produced: Asexual reproduction (like bacteria dividing) typically produces more offspring much faster than sexual reproduction.
Correct Answer is B
Explanation
A. fluid balance and waste removal: While the system does move waste, "waste removal" is more a function of the urinary and digestive systems.
B. fluid balance and immunity: The lymphatic system returns leaked tissue fluid to the blood (fluid balance) and houses white blood cells that fight infection (immunity).
C. immunity and waste removal: This misses the critical role of returning fluid to the circulatory system to prevent edema.
D. waste removal and gas exchange: Gas exchange is strictly the function of the respiratory and circulatory systems.
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