Which of the following would not require a carrier?
a. Movement of potassium into the cell
b. Movement of sodium into the cell
c. Iodine uptake by thyroid gland cells
d. Glucose uptake by body cells
e. None of the above would require a carrier.
B
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A muscle whose name has "triceps" in it
A. has two muscle heads or tendons of origin. B. is part of a complex of three separate muscles that rotate at a joint. C. has four muscle heads or tendons of origin. D. has three muscle heads or tendons of origin. E. has four sets of two muscle heads or tendons of origin.
Answer the following statements true (T) or false (F)
1. Although elite sprinters display improved kinematics over non-elite sprinters, elite 1500-m runners do not display distinguishable kinematic differences over other skilled runners. 2. The vertical acceleration graph of a ball tossed into the air will follow a parabolic path. 3. If air resistance is disregarded, the horizontal component of a projectile is constant. 4. Toddlers exhibit more kinematic variability than adults during walking. 5. At the apex of the trajectory of a projectile, vertical velocity is at its maximum.
Identify all correct statements about lipophilic hormones
a. They include steroids and thyroid hormone b. They bind with receptors located inside their target cells c. They activate second-messenger systems within their target cells d. Both a and b e. Both a and c
Which of the following is NOT a function of hydrochloric acid in the stomach?
a. activating pepsin b. killing microorganisms c. facilitating protein digestion d. breaking down disaccharides into monosaccharides