A virus has a complex capsid with a head and tail structure. Which type of virus is it most likely?

Which statement best explains why antibiotics are ineffective against viral infections?

Which combination correctly matches the infectious agent with its characteristics?

What event is most likely to trigger a prophage to enter the lytic cycle?

A microbiologist discovers an infectious agent that contains genetic material but lacks ribosomes, a cell membrane, and cytoplasm. Which conclusion is most accurate?

What is the direct role of O2 in cellular respiration?  (Select the *BEST* option.) 

Evaluate the following question and answer choice, then select the *BEST* explanation below. Which of the following statements best describes how addition of a catalyst will affect a chemical reaction?(a)The catalyzed reaction will have the same ΔG as the uncatalyzed reaction.(b) The catalyzed reaction will consume all of the catalyst. Option (b) is incorrect because

Would glycolysis still occur if NAD+ was not available? Explain why or why not.  (Select the *BEST* option.)

Evaluate the following question and answer choice, then select the *BEST* explanation below.   When electrons flow along the electron transport chains of mitochondria, which of the following changes occurs?(c) NAD+  is oxidized. Option (c) is incorrect because:

  The reason an increase in substrate concentration does not increase the reaction rate indefinitely is because           .