Which of the following is not one of the major groups of organic substances in the human body?
Proteins
Salts
Lipids
Nucleic acids
The Correct Answer is B
A. Proteins: Proteins are one of the four major classes of organic (carbon-based) molecules in the body.
B. Salts: Salts (like NaCl) are inorganic compounds because they typically do not contain carbon-hydrogen bonds.
C. Lipids: Lipids (fats) are a major group of organic substances essential for cell membranes and energy.
D. Nucleic acids: DNA and RNA are organic molecules that carry genetic information.
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Related Questions
Correct Answer is {"dropdown-group-1":"D"}
Explanation
A. ossification plate: This is not a standard anatomical term.
B. proliferating zone: This is a specific region within the epiphyseal plate, but not the name of the whole structure.
C. zone of hypertrophy: This is just one layer of the growth plate.
D. epiphyseal plate: Commonly called the "growth plate," this hyaline cartilage layer allows the diaphysis (shaft) of a long bone to increase in length during childhood.
Correct Answer is {"dropdown-group-1":"B"}
Explanation
A. intracellular: Intracellular fluid is the fluid contained strictly inside the cells.
B. extracellular: Extracellular Fluid (ECF) includes all fluid outside of cells, including plasma, interstitial fluid, and transcellular fluids like cerebrospinal fluid (CSF).
C. interstitial: Interstitial fluid is specifically the fluid that bathes the cells in tissues; CSF is considered a specialized transcellular fluid, not interstitial fluid.
D. Both A and C are correct: This is incorrect because CSF is not intracellular.
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