A cancer patient is told by their physician that their colon is lacking smooth muscle tone. What does this mean?
A. The intracellular cytoskeleton is overactive.
B. The colon is unable to maintain constant tension for sustained periods of time.
C. The colon has too many shallow invaginations of plasma membranes.
D. The colon is developing action potentials too rapidly.
Answer: B
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Some simple columnar and pseudostratified columnar epithelia have _________ cells, which produce a protective mucous coating over the mucous membranes.
A. fibrous B. blood C. basal D. keratinized E. goblet
Which is an accurate description of glucose and sucrose?
A. Glucose is a monosaccharide, sucrose is a polysaccharide, both molecules are starches. B. Glucose is a monosaccharide, sucrose is a disaccharide, both molecules are carbohydrates. C. Glucose is a disaccharide, sucrose is a monosaccharide, both molecules are lipids. D. Glucose is a disaccharide, sucrose is a glycolipid, both molecules are essential nutrients. E. Glucose is a monoamine, sucrose is a dipeptide, both molecules are acidic.
Which of the following is not correct pertaining to a male patient scheduled for internal carotid endarterectomy?
A) He has atherosclerotic thickening of the intima of his internal carotid artery. B) He is at risk for a transient ischemic attack. C) A Doppler color flow study could have been used to detect his condition. D) One of the nerves typically at risk during this procedure is the recurrent laryngeal nerve. E) Nerve damage during the procedure can result in loss of sensory innervation of the larynx superior to the vocal folds.
A covalent bond forms when both atoms require electrons to become stable.
Answer the following statement true (T) or false (F)