Nursing Elites

1. What is the process of converting ammonia, a byproduct of protein digestion, into a less toxic form?

• A. Deamination
• B. Transamination
• C. Decarboxylation
• D. Hydrolysis

Correct answer: A

Rationale: Deamination is the correct answer. It is the process of removing an amino group from a molecule, like converting ammonia (NH3) into a less toxic form such as urea. Ammonia, a byproduct of protein digestion, must be converted into a less toxic form for excretion. Deamination is a crucial step that mainly occurs in the liver through the urea cycle. Transamination involves transferring an amino group from one molecule to another, not removing it as in deamination. Decarboxylation is the removal of a carboxyl group from a molecule, and hydrolysis is the breakdown of a compound by adding water.

2. Based on the words transfer, transact, translation, transport, what is the meaning of the prefix trans?

• A. Separation
• B. All, everywhere
• C. Forward
• D. Across, beyond, over

Correct answer: D

Rationale: The prefix 'trans-' in words such as transfer, transact, translation, and transport signifies movement or change from one place, state, or form to another. It indicates going across, beyond, or over something, connecting the original state to a different one. Choice A, 'Separation,' is incorrect as the prefix 'trans-' does not imply separation but rather movement or change between states. Choice B, 'All, everywhere,' is incorrect as the prefix does not convey a sense of being all-encompassing but rather focuses on the action of crossing or changing. Choice C, 'Forward,' is incorrect as the prefix 'trans-' is more about moving across or beyond rather than strictly forward.

3. Convert 3.75 liters to milliliters.

• A. 3.75 ml
• B. 375 ml
• C. 3750 ml
• D. 37.5 ml

Correct answer: C

Rationale: To convert liters to milliliters, you need to multiply by 1000 since there are 1000 milliliters in 1 liter. Therefore, 3.75 liters x 1000 = 3750 milliliters. This means that option C, 3750 ml, is the correct conversion. Choices A, B, and D are incorrect because they do not reflect the correct conversion from liters to milliliters.

4. Which of the following organs is NOT directly involved in the mechanical breakdown of food?

• A. Mouth
• B. Stomach
• C. Small intestine
• D. Esophagus

Correct answer: D

Rationale: The correct answer is the esophagus (D). The esophagus is not directly involved in the mechanical breakdown of food. Its primary function is to transport food from the mouth to the stomach through peristalsis, a series of muscular contractions. The mouth is involved in the initial mechanical breakdown by chewing and mixing food with saliva. The stomach mechanically breaks down food through churning movements, and the small intestine further breaks down food through peristalsis and segmentation. Choices A, B, and C are directly involved in mechanical breakdown processes. The mouth helps in chewing and mixing food with saliva, the stomach mechanically breaks down food through churning movements, and the small intestine continues the breakdown process with peristalsis and segmentation.

5. What is 0.07 expressed as a fraction?

• A. 7/100
• B. 1/10
• C. 1/20
• D. 1/50

Correct answer: A

Rationale: To convert a decimal to a fraction, we read the decimal as '7 hundredths,' which is written as 7/100. This fraction is already in its simplest form. Choice B, 1/10, is incorrect as it represents 0.1, not 0.07. Choices C and D, 1/20 and 1/50 respectively, do not match the decimal 0.07.

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