Glycosaminoglycans (GAGs) are polysaccharides.
Answer the following statement true (T) or false (F)
True
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The release of epinephrine during exercise contributes to an increase in nutrient levels in the blood.
Answer the following statement true (T) or false (F)
Which is not true about the thyroid gland?
A. It requires iodine to synthesize thyroid hormone. B. It is located on the anterior surface of the trachea, inferior to the thyroid cartilage. C. It has two lobes connected by a central portion called the commissure. D. It secretes thyroid hormone in response to stimulation by TSH. E. An enlargement of the thyroid gland is called a goiter.
Enzymes are proteins that increase the rate of chemical reactions by
A. increasing the activation energy of the reaction. B. increasing the concentration of the reactants. C. decreasing the activation energy of the reaction. D. adjusting the temperature of the reaction.
Cells of the sinoatrial node ________ during the pacemaker potential
A) repolarize fast B) depolarize slow C) depolarize fast D) depolarize slow and repolarize fast E) repolarize slow