Cells must efficiently transfer energy from their energy-trapping systems to the systems actually carrying out work and also use various metabolic processes to replace the energy used in doing work. This is called the ________ ________.
Fill in the blank(s) with the appropriate word(s).
energy cycle
Biology & Microbiology
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Which of the following protein classes are not found as membrane proteins?
A. transport channels B. hormones C. receptors D. enzymes E. identity markers
Biology & Microbiology
Actual gas exchange occurs through the walls of the ____
a. arteries b. arterioles c. capillaries d. veins e. venules
Biology & Microbiology
Moistening and lubrication of food occurs in the
human a. mouth. b. esophagus. c. stomach. d. duodenum. e. jejunum.
Biology & Microbiology
This newly identified organism has been discovered to live on our skin
a. reduce pH b. increase pH c. no effect
Biology & Microbiology