Another term for a protein catalyst is a(n) (enzyme/ribozyme)

What will be an ideal response?


enzyme

Biology & Microbiology

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As oomycetes infected and killed potato plants during the Irish Potato Famine, oomycetes can be classified as a(n) _________________. Select all correct choices

A. virulent pathogen B. biotrophic pathogen C. avirulent pathogen D. necrotrophic pathogen

Biology & Microbiology

Bacterial cells with thick peptidoglycan and numerous teichoic acid cross-linkages are Gram stained. The organisms stain pink. Which one of the following statements explains this discre-pancy?

a. The bacterial cells were most likely not heat-fixed to the slide. b. The bacterial cells were subjected to the decolorizer too long and were overdecolo-rized. c. The lot of Gram-stain reagent is most likely expired. d. No discrepancy exists; cells with this composition stain pink on Gram stain.

Biology & Microbiology

Proteins are macromolecules composed of long strings of single units called nucleic acids.

a. true b. false

Biology & Microbiology

The primary difference between enhancers and promoter-proximal elements is that enhancers _____

A) are transcription factors; promoter-proximal elements are DNA sequences B) enhance transcription; promoter-proximal elements inhibit transcription C) are at considerable distances from the promoter; promoter-proximal elements are close to the promoter D) are DNA sequences; promoter-proximal elements are proteins

Biology & Microbiology