Essential amino acids are defined as those amino acids that:

What will be an ideal response?


must be obtained from the diet

Biology & Microbiology

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Which of the following does not pertain to endotoxin?

A. Endotoxin is a bacterial cell wall lipid. B. Endotoxin can cause septic shock in the human body. C. Endotoxin can stimulate fever in the human body. D. Endotoxin is found in acid-fast bacterial cell walls.

Biology & Microbiology

Nonfunctional copies of normal genes, which lack both introns and promoters, and are important in estimating evolutionary ages of phylogenetic relationships, are ________

A) transgenes B) retrotransposons C) processed retrogenes D) processed pseudogenes E) duplicated pseudogenes

Biology & Microbiology

Citric acid makes lemons taste sour. Which of the following is a functional group that would cause a molecule like citric acid to be acidic?

A. hydroxyl B. carboxyl C. carbonyl D. hydrocarbon

Biology & Microbiology

Which of the following is not considered a basic tissue type?

A. connective B. epithelial C. nervous D. muscle E. fat

Biology & Microbiology