__________ are open channels that connect the cytoplasm of abutting cells and permit rapid transfer of
ions and small molecules between them. Fill in the blank(s) with the appropriate word(s).
Gap junctions
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A disaccharide, such as maltose, consists of two molecules of glucose linked by what type of bond?
A. Phosphodiester. B. Glycosidic. C. Steroid. D. Peptide. E. Hydrogen.
The change in the chromosome depicted between the top and the bottom in the accompanying figure represents a(n)
____.
a. inversion b. duplication c. reciprocal translocation
d. deletion e. Philadelphia chromosome
Oxygen generally forms two covalent bonds, while carbon generally forms four covalent bonds. In
contrast, helium is inert (generally does not form any bonds). Explain the reason for the differences in chemical behavior between these three elements.
What will be an ideal response?The smaller the number the bigger the ______
Fill in the blank(s) with the appropriate word(s).