When do hydrogen bonds occur?
a. when a molecule with partial charges contacts a molec;ule without partial charges
b. When 2 atoms achieve stable electron configuration by sharing electrons with eachother
c. When partial opposite charges on molecules come close enough to attract each other
d. When a molecle with a low molecular weight is bonded to a molecule with a high molecular weight
Ans: c. When partial opposite charges on molecules come close enough to attract each other
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What would be the most direct result of an individual having an inability to produce surfactant in their alveoli?
A. The alveoli would physically collapse. B. The alveoli would be much more likely to harbor infections. C. The alveoli would fill with fluid due to an ion transport defect. D. Oxygen exchange with the blood would be impaired due to a thickening of the epithelium. E. Carbon dioxide exchange with the blood would be impaired due to an inhibition of carbonic anhydrase.
What do we call a sequence located upstream, downstream, within the coding region, or several thousand base pairs away from a gene that increases transcription?
a. promoter b. terminator c. enhancer d. repressor
________ RNA carries a genetic message in triplet code (codons) and is translated to build a protein
A) Messenger B) Alternative C) Transfer D) Ribosomal E) Junk
13. In order to properly evaluate scientific research conclusions, one should utilize critical thinking by _____
determining the reliability of the source of the data reading about the research methods and protocols used trying to come up with other possible explanations for the results all of the above