Compare and contrast the two types of foodborne disease.
What will be an ideal response?
Foodborne diseases are also known as food poisoning. Food poisoning may be due to food infections, caused by consuming living microorganisms, or to food intoxication, caused by consuming microbial toxins in food. Many cases of foodborne diseases are common-source epidemics, where one food source is responsible for many individual cases of the disease. Food infections primarily result from improper food handling or storage, whereas food intoxication may result from improper preparation, especially canning. Heating food is usually effective in killing living microbes in food, but most toxins are not inactivated by heating.
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In which organelle would the defective enzyme be found?
Tay-Sachs disease is an inherited neurological disorder in which a defective enzyme prohibits the hydrolysis of phospholipids called gangliosides. A. lysosome B. cytoplasm C. endoplasmic reticulum D. Golgi apparatus E. mitochondrion
Chloroplasts and mitochondria are similar in that they both
A) are involved in cellular waste processing B) are involved in protein production for the cell C) are involved in helping to maintain cell shape D) contain DNA E) are membranous sacs involved in storage
A homeotic gene
A) determines which end of the egg will become the head and which end will become the tail. B) serves as a master control gene that functions during embryonic development by controlling the developmental fate of groups of cells. C) represses gene transcription and promotes mRNA translation. D) is found only in adult somatic cells.
Which is a function of the nasal cavities in humans?
A) secreting enzymes for digestion B) warming inhaled air C) secreting excess carbon dioxide into exhaled air D) determining O2 content in inhaled air