What is released at each step of an electron transport chain?
A. ultraviolet wavelengths
B. electrons
C. photons
D. energy
E. All answers are correct.
D. energy
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Refer to the figure. If the carbon atom of each of the incoming CO2 molecules is labeled with a radioactive isotope of carbon, which organic molecules will be radioactively labeled after one cycle?
A) C only B) B, C, D, and E C) C, D, and E only D) B and C only E) B and D only
Your patient has a rash, a fever, and a very high white blood cell count. Blood specimens are taken, put into culture bottles, and sent down to the microbiology lab for incubation and analysis. Select the statement that best reflects why microbial analysis of blood is an important step in patient diagnosis.
A. Microbial growth in blood samples may indicate sepsis. B. A lack of microbes in the blood means that the patient's health is critical. C. Blood specimens are often obtained through poor aseptic technique by the healthcare worker: this is documentation of their failure to employ proper universal precautions. D. A few bacterial cells in a blood sample are no big deal and should be ignored.
Which cytoskeletal element anchors the proteins actin and myosin to strengthen the cytosol?
a. intermediate filaments b. flagella c. collagen d. microfilaments e. centrioles
A group of proteins with actions including antiviral activity are the:a
tumor necrosis factors. b. chemokines. c. complement systems. d. interleukins. e. interferons