Which of the following is NOT an effect of thyroid hormones on peripheral tissues?
a. elevating levels of oxygen consumption and energy consumption
b. increasing heart rate and force of contraction
c. maturation of lymphocytes
d. stimulation of the formation of red blood cells
Ans: c. maturation of lymphocytes
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Adenoids are the ________ tonsil.
A) palatine B) pharyngeal C) laryngeal D) lingual E) None of the answers are correct.
Prions are pathogenic proteins that are linked to different neurodegenerative diseases. Investigations of some have indicated that normal cellular proteins and prions have the same amino acid sequence. How is this possible?
A. Though the primary structure is the same between the prion and the normal cellular protein, differences at higher levels (secondary or tertiary) alter protein activity. B. The amino acids of the prion must have more hydrophilic sections, causing it to interact with the lipids of the plasma membrane and disrupting cell activity. C. The amino acid sequence is not important to the function of the protein because protein function is completely determined by the pH of the environment. D. The double helix structure of proteins is easily altered by separating the nitrogenous bases holding the strands together, allowing for a protein to act as a prion.
Cilia are most likely to be seen on which of the following epithelia?
A. Stratified squamous epithelia B. Pseudostratified columnar epithelia C. Stratified cuboidal epithelia D. Simple squamous epithelia E. Urothelia
The oral cavity, pharynx, esophagus, and rectum have an adventitia in place of the
A) mucosa. B) lamina propria. C) serosa. D) muscularis externa. E) submucosa.