Podcast
Questions and Answers
Which of the following is NOT a dietary source of vitamin A?
Which of the following is NOT a dietary source of vitamin A?
- Dairy
- Egg yolk
- Fish oils (correct)
- Liver
Which of the following is a function of retinaldehyde in the body?
Which of the following is a function of retinaldehyde in the body?
- Carrying vitamin A in blood
- Regulating gene expression
- Functioning as a light-sensitive pigment in vision (correct)
- Aiding in lipid digestion
Which of the following is a clinical sign of vitamin A deficiency?
Which of the following is a clinical sign of vitamin A deficiency?
- Night blindness (correct)
- Excess hair growth
- Increased blood clotting
- Weight gain
Which vitamin is responsible for the regulation of calcium absorption and homeostasis, as well as some immune functions?
Which vitamin is responsible for the regulation of calcium absorption and homeostasis, as well as some immune functions?
Which vitamin is an antioxidant in cell membranes and limits radical damage from oxidation of polyunsaturated fatty acids?
Which vitamin is an antioxidant in cell membranes and limits radical damage from oxidation of polyunsaturated fatty acids?
Which vitamin is a cofactor for enzymes involved in carboxylation and necessary for the formation of prothrombin and other clotting factors?
Which vitamin is a cofactor for enzymes involved in carboxylation and necessary for the formation of prothrombin and other clotting factors?
Which vitamin is known as the main reducing agent and is involved in hydroxylation reactions, collagen synthesis, and promotion of iron absorption in the intestine?
Which vitamin is known as the main reducing agent and is involved in hydroxylation reactions, collagen synthesis, and promotion of iron absorption in the intestine?
Which syndrome is the third most common cause of dementia in the USA?
Which syndrome is the third most common cause of dementia in the USA?
Which vitamin deficiency can lead to photosensitive dermatitis, diarrhea, and dementia?
Which vitamin deficiency can lead to photosensitive dermatitis, diarrhea, and dementia?
Which vitamin is necessary for the synthesis of DNA and is particularly important during pregnancy?
Which vitamin is necessary for the synthesis of DNA and is particularly important during pregnancy?
Which vitamin is required for the proper functioning of leucine aminopeptidase, methylmalonyl-CoA mutase, and methionine synthase?
Which vitamin is required for the proper functioning of leucine aminopeptidase, methylmalonyl-CoA mutase, and methionine synthase?
Which one of the following is true about the normal flora and pathogens in the human body?
Which one of the following is true about the normal flora and pathogens in the human body?
How are pathogens transmitted?
How are pathogens transmitted?
What is the difference between endotoxins and exotoxins?
What is the difference between endotoxins and exotoxins?
Which type of bacterial toxin is released from the bacterial cell due to cell lysis or turnover?
Which type of bacterial toxin is released from the bacterial cell due to cell lysis or turnover?
Which type of bacterial toxin is primarily produced by Gram-positive bacteria?
Which type of bacterial toxin is primarily produced by Gram-positive bacteria?
Which type of bacterial toxin can cause a polyclonal expansion of T cells leading to a shock syndrome?
Which type of bacterial toxin can cause a polyclonal expansion of T cells leading to a shock syndrome?
Which type of bacterial toxin is released on bacterial cell lysis?
Which type of bacterial toxin is released on bacterial cell lysis?
Which of the following is a mechanism that pathogens use to evade the immune system?
Which of the following is a mechanism that pathogens use to evade the immune system?
Which of the following is NOT a portal of entry for pathogens?
Which of the following is NOT a portal of entry for pathogens?
Which of the following is a virulence factor that allows bacteria to establish a stable population within the host?
Which of the following is a virulence factor that allows bacteria to establish a stable population within the host?
Which of the following is a biochemical virulence factor that facilitates the spread and invasion of pathogens?
Which of the following is a biochemical virulence factor that facilitates the spread and invasion of pathogens?
