Gram-negative cells contain a periplasmic space that is __________
a. a site of endocytosis
b. filled with lysozyme
c. rich in degradative enzymes
d. abundant in teichoic acid
e. the site of protein synthesis
Ans: c. rich in degradative enzymes
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Microscopic fossils are also called microfossils
A. These minerals are needed as cofactors for enzymes needed in photosynthesis. B. These minerals are needed as cofactors for enzymes needed in cellular respiration. C. These skeletons allow for more complex reactions to take place inside the cell. D. These skeletons probably afforded them protection from being eaten. E. These minerals are necessary to maintain genome integrity.
The recombinant virus assay (RVA) uses which type of amplification methodology?
a. Transcription-mediated amplification (TMA) b. Nucleic acid sequence-based amplification (NASBA) c. Strand displacement amplification (SDA) d. Reverse transcription polymerase chain reaction (RT-PCR)
Describe the enzymatic digestion that takes place in each structure of the digestive tract
What will be an ideal response?
Which of the following statements is false?
a. Enzymes are highly specific and act on chemicals called substrates. b. Enzymes act as catalysts and speed up chemical reactions within cells. c. Most enzymes work best under high salt conditions. d. Most enzymes are proteins. e. Enzymes can become deactivated by high fevers