Which of the following diseases is considered an autoimmune disease triggered by bacterial infection?
A. glomerulonephritis caused by the group A streptococci
B. scarlet fever
C. rheumatic fever
D. impetigo
E. toxic shock syndrome
Answer: C
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Which of the following is useful in distinguishing between prokaryotic and eukaryotic cells?
A. The presence of membrane-delimited organelles within the cytoplasm B. The use of DNA for the storage of genetic information C. The presence of ribosomes for the synthesis of proteins D. All of the choices are correct.
Leaf characteristics are useful indicators of the trade-offs plants make to combat environmental constraints
Indicate whether the statement is true or false
A particular reaction has a negative delta G. However, this reaction takes many years to proceed in the absence of enzyme. Why is this the case?
A. A certain amount of activation energy is required for the reaction to proceed B. This reaction does not proceed spontaneously C. The initial free energy of the reactants is much less than the final free energy of the products D. This reaction does not obey the second law of thermodynamics
Assuming a cell can use glucose as an energy source in fermentation, aerobic or anaerobic respiration. Which of these processes will provide the most ATP to the cell?
a) fermentation b) aerobic respiration c) anaerobic respiration d) they all provide the same amount of ATP to the cell