Physiological saline is 0.9% NaCl. Nurse Ima Fool is a bit distracted and makes a 9.0% NaCl solution. The tonicity of the solution is_ ____compared to inside a cell and would cause the patient's red blood cells to undergo

isotonic; nothing

hypotonic; crenation

hypertonic; crenation

hypertonic: lysis

Answer and Explanation

The Correct Answer is C

A. isotonic; nothing: Isotonic means equal solute concentration. 0.9% NaCl is isotonic; 9.0% is much higher, so not isotonic.
B. hypotonic; crenation: A hypotonic solution has less solute than the cell. Crenation (shriveling) occurs in a hypertonic solution.
C. hypertonic; crenation: A 9.0% NaCl solution is hypertonic (more solutes than inside the cell). Water moves out of red blood cells, causing them to shrink or crenate.
D. hypertonic; lysis: Lysis (bursting) occurs in hypotonic solutions, where water enters the cell.

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Correct Answer is B

Explanation

A. carbohydrates – monosaccharides: Carbohydrates are built from monosaccharides like glucose or fructose.
B. lipids – amino acids: Lipids are made from fatty acids and glycerol, not amino acids.
C. nucleic acids – nucleotides: DNA and RNA are polymers made of nucleotide building blocks.
D. carbohydrates – 5 or 6 carbon ring simple sugars: Carbohydrates often consist of 5 or 6 carbon sugars such as glucose (C₆) and ribose (C₅).

A. brain B. shivering C. thermoreceptors D. skeletal muscles

Correct Answer is D

Explanation

A. Brain: The brain is the control center, not the effector.
B. Shivering: Shivering is a response, not an anatomical structure. The effector must be a structure that performs an action.
C. Thermoreceptors: These are the sensory receptors (detectors), not effectors.
D. Skeletal muscles: Skeletal muscles are the effectors that contract to produce shivering, generating heat in response to cold.

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Physiological saline is 0.9% NaCl. Nurse Ima Fool is a bit distracted and makes a 9.0% NaCl solution. The tonicity of the solution is_ ____compared to inside a cell and would cause the patient's red blood cells to undergo

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Naxlex Comprehensive Predictor Exams

Which of the following is mismatched with its building blocks?

Correct Answer is B

Explanation

In the cold, thermoreceptors in your skin detect the temperature and inform your brain, which tells the skeletal muscles to contract, causing shivering. What is the effector?

Correct Answer is D

Explanation

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