A brush border of microvilli is found in ________ epithelium, which can be found lining the ________.
A. simple cuboidal; esophagus
B. pseudostratified; nasal cavity
C. simple columnar; small intestine
D. stratified squamous; anal canal
E. stratified squamous; esophagus
Answer: C
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The following is a list of the steps involved in the process of secretion by the Golgi apparatus
1. Material moves from cisterna to cisterna by means of transfer vesicles. 2. Exocytosis. 3. Products from RER are packaged into transport vesicles. 4. Secretory vesicles are formed at the trans face. 5. Vesicles arrive at the cis face. 6. Enzymes modify arriving proteins and glycoproteins. What is the proper order for these steps? A) 5, 6, 1, 4, 2, 3 B) 2, 3, 5, 6, 1, 4 C) 4, 3, 1, 6, 5, 2 D) 3, 5, 6, 1, 4, 2 E) 1, 3, 6, 4, 2, 5
Medications that treat constipation should include ions such as sodium and magnesium, since water will follow these ions into the intestinal lumen via osmosis.
Answer the following statement true (T) or false (F)
Smoking destroys cilia in the respiratory passageways, such as the trachea. Which of the following is a likely consequence of damaged cilia?
A) inflammation and swelling of the tonsils B) air is not moistened, warmed, or filtered before reaching the lungs C) inability to propel mucus from the lungs to the throat D) nasal congestion and postnasal drip E) inability to produce mucus
What is the role of an enzyme in a chemical reaction?
A. Lowers the temperature of the reaction B. Raises the temperature of the reaction C. Raises the energy of activation D. Lowers the energy of activation