Why is using heat to speed up biological reactions problematic?
What will be an ideal response?
High temperatures destroy the structural components of cells, particularly proteins. Temperature
increases the rates of all reactions, and therefore, is not specific to just metabolic reactions.
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Which is true about prions?
A. They cause a degenerative brain condition. B. They are naked pieces of RNA. C. They are made of DNA and protein. D. They are a normal brain protein that has folded differently. E. They cause a degenerative brain condition AND they are a normal brain protein that has folded differently.
The macromolecule composed of amino acids is a
A. lipid. B. carbohydrate. C. nucleic acid. D. protein. E. steroid.
To Alexander Agassiz are attributed the following theories except:
a. colors of organisms were related to the absorption of different wavelengths of light at different depths. b. that the Caribbean and Pacific Oceans were once connected. c. that atolls form atop sinking mountains. d. none of the above
A theoretical concept that is used to understand how and why certain organisms can be sorted into discrete taxonomic groups is known as the ________.
A. species concept B. phylogenetic concept C. endosymbiotic theory D. genotypic concept