Nursing Elites

1. When plants do not receive enough water, their photosynthetic rate drops. This is because:

• A. water is a raw material for the light reactions in photosynthesis
• B. carbon dioxide is not available
• C. water provides the carbon atoms used to make sugar
• D. not enough oxygen is produced to keep fermentation running

Correct answer: A

Rationale: When plants do not receive enough water, their photosynthetic rate drops because water is a raw material required for the light reactions in photosynthesis. In the light reactions, water is split to provide electrons, which are then utilized to produce energy carriers used in converting carbon dioxide into glucose during the Calvin cycle. Therefore, without sufficient water, the light reactions cannot proceed effectively, ultimately leading to a decrease in photosynthetic rate. Choice B is incorrect because carbon dioxide is a separate raw material needed for the Calvin cycle, not the light reactions. Choice C is incorrect as water provides electrons, not carbon atoms, for photosynthesis. Choice D is incorrect because fermentation is not directly related to photosynthesis; oxygen is produced during photosynthesis, not fermentation.

2. Which structure in the ear is responsible for detecting sound?

• A. Cochlea
• B. Eustachian tube
• C. Ossicles
• D. Semicircular canals

Correct answer: A

Rationale: The cochlea, situated in the inner ear, is responsible for detecting sound waves and converting them into neural signals that are transmitted to the brain for processing. The cochlea contains specialized sensory cells that respond to different frequencies of sound, allowing us to hear a wide range of sounds. The other structures listed, such as the eustachian tube, ossicles, and semicircular canals, play roles in functions like equalizing pressure, transmitting vibrations, and maintaining balance, respectively, but they are not directly involved in the detection of sound.

3. What is the result of adding 6 3/4 + 8 1/6?

• A. 14 11/12
• B. 12 3/4
• C. 12 3/24
• D. 14 2/5

Correct answer: A

Rationale: To add mixed numbers, convert them to improper fractions: 6 3/4 = 27/4 and 8 1/6 = 49/6. Then, add the fractions to get 27/4 + 49/6 = 162/24 + 98/24 = 260/24 = 21 20/24 = 21 10/12 = 21 5/6 = 14 11/12. Therefore, the correct answer is 14 11/12. Choice B (12 3/4) is incorrect as it does not match the correct calculation. Choice C (12 3/24) is incorrect due to the erroneous denominator in the final fraction. Choice D (14 2/5) is incorrect as it does not correspond to the correct sum of the fractions.

4. A synonym is a word _____ a meaning similar to another word.

• A. that has
• B. that gives
• C. which has
• D. which gives

Correct answer: A

Rationale: The correct phrase to use in this context is 'that has,' indicating possession or similarity between words. Synonyms are words that have meanings similar to those of other words, making choice A the most appropriate selection. Choices B, C, and D are incorrect as they do not correctly convey the relationship of possessing similar meanings between words.

5. Select the meaning of the word 'intact' in the sentence: 'It is important that the bandage remain intact.'

• A. Dry
• B. Whole
• C. Uncovered
• D. Secure

Correct answer: B

Rationale: The correct answer is 'B: Whole'. In this context, 'intact' means undisturbed or whole, referring to the bandage being complete and not damaged. Choice A, 'Dry', is incorrect as it does not reflect the meaning of 'intact' in this sentence. Choice C, 'Uncovered', is also incorrect as 'intact' does not imply uncovered but rather complete. Choice D, 'Secure', is not the best fit as 'intact' in this context emphasizes the undamaged or whole nature of the bandage.

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