Which of the following is the CORRECT sequence of stages in glycolysis?
A. energy-conservation, energy-investment, lysis
B. lysis, energy-investment, energy-conservation
C. energy-investment, lysis, energy-conservation
D. lysis, energy-conservation, energy-investment
E. energy-investment, energy-conservation, lysis
Answer: C
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All of the following are animal mechanisms to cope with the problem of water balance EXCEPT
A. coupling of water/salt removal with metabolic waste removal. B. secretion of regulatory hormones into the tubule. C. kidneys used as filtering organs. D. passage of water and waste of the body across a layer of cells into a tubular structure. E. contractile vacuoles.
Sputum from a patient with a history of tuberculosis due to Mycobacterium tuberculosis bacteria is collected and sent to the microbiology lab for analysis. X-ray analysis and an acid-fast smear made from the sputum indicate that the patient has active tuberculosis. The physician has requested that the sputum be analyzed for pathogen load, but because colonies of Mycobacterium typically take between 3 to 8 weeks to appear on agar, results from traditional culture methods are often delayed. If you were the microbiologist in this case, what would you do?
A. Set up a traditional culture on the sputum, then use the colonies for real-time PCR with primers to Mycobacterium tuberculosis DNA to quantify the pathogen load. B. Using the sputum, apply real-time PCR with primers to Mycobacterium tuberculosis DNA to estimate the pathogen load, then follow up with a traditional culture. C. Set up a traditional culture on the sputum, then use the colonies for end-point PCR with primers to Mycobacterium tuberculosis DNA to quantify the pathogen load. D. Using the sputum, apply end-point PCR with primers to Mycobacterium tuberculosis DNA to estimate the pathogen load, then follow up with a traditional culture.
What are peripheral proteins
What will be an ideal response?
In metabolic processes of cell respiration and photosynthesis, prosthetic groups such as heme and iron-sulfur complexes are encountered in components of the electron transport chain. What do they do?
A) donate electrons B) act as reducing agents C) act as oxidizing agents D) transport protons within the mitochondria and chloroplasts E) both oxidize and reduce during electron transport