What is the function of the nucleolus?
A. It is the site of protein synthesis.
B. It isolates particular chemical activities from the rest of the cell.
C. It packages proteins for export from the cell.
D. It is the site of ribosome subunit assembly.
E. It is the site of photosynthesis.
Answer: D
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A major enzyme involved in protein digestion is _____
A) pancreatic lipase B) amylase C) pepsin D) lingual lipase
An embryo sporophyte surrounded by nutritive tissue and a tough, protective outer coating makes up a(n) ____
a. pollen grain b. spore c. ovule d. seed e. strobilus
In what way does prokaryotic fission resemble eukaryotic mitosis?
a. mechanism of chromosome movement b. production of genetically identical descendant cells c. chromosome attachment
d. production of a cytoskeletal framework for separating chromosomes e. horizontal gene transfers
The property of density is calculated using _____.
Fill in the blank(s) with the appropriate word(s).