Nursing Elites

1. As used in the passage, what does the word 'depressed' most nearly mean?

• A. Very unhappy
• B. Decreased appreciably
• C. Exhaled hard
• D. Pushed down

Correct answer: D

Rationale: In this context, 'depressed' means 'pushed down' as it refers to the action of pushing down the plunger to force out the clog in the pipe. The word 'depressed' is used to describe the physical action of pressing down, not to convey emotions like being very unhappy (choice A), to decrease appreciably (choice B), or to exhale hard (choice C), making these choices incorrect.

2. What is the first step to take after planting potatoes?

• A. Mound soil around the base of the plant.
• B. Water immediately.
• C. Mix fertilizer or compost into loosened soil.
• D. Place potatoes 1 foot apart.

Correct answer: B

Rationale: The correct answer is B: Water immediately. After planting potatoes, the first step should always be to water them immediately. This is crucial to settle the soil around the newly planted potatoes, ensuring good contact between the roots and the soil. Watering helps kickstart the growth process and provides the necessary moisture for the newly planted potatoes to establish themselves successfully. Choices A, C, and D are incorrect because mounding soil, mixing fertilizer/compost, and spacing potatoes should be done before or during planting, not immediately after.

3. Where is the major site for nutrient absorption in the digestive system?

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

Correct answer: C

Rationale: The small intestine is recognized as the major site for nutrient absorption in the digestive system. It plays a crucial role in the digestion and absorption of nutrients from food. The small intestine's villi and microvilli provide a large surface area specialized for absorbing nutrients like carbohydrates, proteins, fats, vitamins, and minerals. This efficient absorption process is essential for supplying the body with the necessary nutrients for energy production, growth, and overall functioning. The mouth is primarily involved in the initial stages of digestion through mechanical and chemical breakdown of food. The stomach aids in further mechanical and chemical digestion but is not the primary site for nutrient absorption. The large intestine's main function is to absorb water and electrolytes, not nutrients.

4. Which muscle causes a joint to bend?

• A. Cardiac
• B. Extension
• C. Flexor
• D. Smooth

Correct answer: C

Rationale: The correct answer is C: Flexor. A flexor muscle contracts to bend a joint, such as bending the elbow or knee. Flexor muscles are responsible for flexing or bending a joint, while extensor muscles are responsible for extending or straightening a joint. Choice A, Cardiac, is incorrect as cardiac muscle is found in the heart and is responsible for pumping blood. Choice B, Extension, is incorrect as extension refers to the straightening or extending movement of a joint, which is opposite to bending. Choice D, Smooth, is incorrect as smooth muscles are involuntary muscles found in organs like the intestines and blood vessels, not directly responsible for bending joints.

5. What is the process of transporting molecules across the cell membrane against a concentration gradient called?

• A. Diffusion
• B. Osmosis
• C. Active transport
• D. Facilitated diffusion

Correct answer: C

Rationale: A) Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration, which does not require energy input. B) Osmosis is the movement of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration. C) Active transport is the process of transporting molecules across the cell membrane against a concentration gradient, requiring energy in the form of ATP to move substances from an area of lower concentration to an area of higher concentration. D) Facilitated diffusion is a type of passive transport that involves the use of transport proteins to move molecules across the cell membrane from an area of higher concentration to an area of lower concentration, without the need for energy input.

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