Ribosomal RNA
a. covalently binds amino acids.
b. contains an anticodon.
c. is produced in the nucleolus of the nucleus.
d. assists in DNA replication.
e. has no known function in the cell.
Ans: c. is produced in the nucleolus of the nucleus.
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At about pH 7 in most cells, what happens to the amino R-group on an amino acid?
A) It acts as a base and gains a proton, giving it a positive charge. B) It acts as an acid and loses a proton, giving it a negative charge. C) It is reduced, and tends to act as an electron donor in redox reactions. D) It remains neutral, like water, and does not have a charge.
The structure of the ribosome is uniform throughout a eukaryotic cell
Indicate whether the statement is true or false
On a scientific expedition into new territory, you discover a previously undescribed organism living within the very
hot environment of a geyser. This organism has a cell wall, is single celled, heterotrophic, and has no true nucleus. In what kingdom would you most likely place this organism and why? What will be an ideal response?
Prokaryotic cells do not have mitochondria, so they cannot make ATP energy
Indicate whether the statement is true or false