A cell has enough available ATP to meet its needs for about 30 seconds. What is likely to happen when an athlete exhausts his or her ATP supply?
A) He or she has to sit down and rest.
B) Catabolic processes are activated that generate more ATP.
C) ATP is transported into the cell from the circulatory system.
D) Other cells take over, and the muscle cells that have used up their ATP cease to function.
B
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Which of the following is an organism that possesses
chaetae and nephridia and exhibits coordinated movements of circular and longitudinal muscle? a. millipede b. tapeworm c. polychaete d. hookworm e. flatworm
Most reabsorption occurs in the distal convoluted tubule
____________________ Indicate whether the statement is true or false.
Glycolysis is a series of chemical reactions (endergonic and exergonic) by which the cell can obtain ATP. NAD+ plays a crucial role in the reactions of glycolysis by:
A. accepting electrons from glucose so that glucose gets partially oxidized to pyruvate. B. donating electrons to pyruvate when glucose gets partially oxidized. C. converting endergonic reactions to exergonic reactions so that there is an output of energy to make ATP. D. donating electrons to ADP to make ATP.
Treponema pallidum can be transmitted
A. by contact with infected fomites. B. through sexual intercourse. C. from an infected mother to her unborn child. D. both by contact with infected fomites and through sexual intercourse. E. both through sexual intercourse and from an infected mother to her unborn child.