WVU Biology 115- Exam 1 pre-test
correctly answered to pass
Your blood is _____ compared to distilled water and the distilled water is _____ compared to the ocean.
- correct answer ✔✔Hypertonic, Hypotonic
Your friend tells you that he heard about an element that has an atomic number of 20 and an atomic
mass of 10. Is this possible? - correct answer ✔✔No, this isn't possible
Which of the following membrane activities requires energy from ATP? - correct answer ✔✔Movement
of Na+ ions from a lower concentration in a mammalian cell to a higher concentration in the extracellular
fluid
You perform an experiment in which you create an artificial cell with a selectively permeable membrane
through which only water and glucose can pass. The cell contains: 1M glucose and 2M sucrose. You then
place the cell into a beaker containing: 2M glucose and 1M sucrose. What do you expect to see? - correct
answer ✔✔A net flow of water into the cell
Which element is most likely to participate in an ionic bond? - correct answer ✔✔Sodium
Chitin is a/n ____ (type of macromolecule) used for ____ and found primarily in ____ (organisms) -
correct answer ✔✔protein, structure, animals & fungi
Helium has an atomic # of 2. How many electrons are in the outermost shell? - correct answer ✔✔2
Hydrogen bonds form between nitrogenous bases of nucleotides in DNA and some RNAs. What does this
tell you about the bonds within these nucleotides? - correct answer ✔✔Nucleotides must contain at
least some polar covalent bonds
If you were to remove a proton from an atom it would create... - correct answer ✔✔an ion (and likely an
isotope) of a different element
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