Why is it that lipids CANNOT provide large amounts of adenosine triphosphate (ATP) in a short period of time?
a. most lipids are processed in mitochondria, and mitochondrial activity is limited by the availability of oxygen
b. lipid reserves are difficult to mobilize
c. lipids are insoluble, and it is difficult for water-soluble enzymes to reach them
d. all of the listed responses are correct
Answer: d. all of the listed responses are correct
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The peroneal retinacula of the ankle are located
A. anteriorly. B. posteriorly. C. laterally. D. medially.
Which of the following is the last step in the sequence of events happening when cyclic AMP acts as a second messenger?
A. G protein is activated by the binding of a hormone to the receptor B. Enzymes are activated or deactivated by the action of protein kinases C. Adenylate cyclase produces cAMP D. G protein activates adenylate cyclase E. cAMP activates protein kinases
What is the main role of the mitochondria within cells?
a. detoxification b. recycling c. free radical scavenging d. power plant e. gene protecting
The larger the diameter of a skeletal muscle fiber, the greater the tension it can generate
Indicate whether the statement is true or false.