Which of the following is true about red muscles?
A) Red muscles are slower than white muscles.
B) Red muscles have fewer mitochondria than white muscles.
C) Red muscles have fibers of greater diameter than those of white muscles.
D) Red muscles contain less myoglobin than white muscles.
E) Red muscles fatigue quickly.
A) Red muscles are slower than white muscles.
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Which of the following bones articulates with the carpals?
A. Radius B. Ulna C. Phalanges D. Fibula E. Humerus
Someone suffering from a lack of angiotensin-converting enzyme may have a problem with their
A) endothelial cells of the alveolar capillaries. B) septal cells of the alveolar ducts. C) squamous epithelial cells of the alveoli. D) alveolar macrophages within the alveolar sacs. E) type II pneumocytes lining the respiratory bronchioles.
The substrate binds to the ________ of the enzyme.
A. active site B. neutral site C. allosteric site D. acidic site
Which of the following is NOT true about enzymes?
A. Very few enzymes require cofactors for activation. B. Most enzymes are not sensitive to changes in pH. C. As the temperature increases from 25°C to 37°C, enzyme activity decreases. D. All of the choices are correct.