Multiple Choice
In eukaryotic cells that possess a cell wall (e.g., plants and fungi), what is the primary function of the cell wall?
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1. Overview of Cell Biology
Eukaryotic Cell Architecture
Multiple Choice
In eukaryotic animal cells, what is the primary function of the nucleolus?
A
It packages and sorts proteins for secretion via vesicles.
B
It synthesizes rRNA and assembles ribosomal subunits.
C
It stores the cell’s genetic information as chromatin.
D
It produces ATP through oxidative phosphorylation.
Verified step by step guidance1
Identify the nucleolus as a distinct structure within the nucleus of eukaryotic animal cells.
Recall that the nucleolus is primarily involved in the production of ribosomal RNA (rRNA), which is a key component of ribosomes.
Understand that the nucleolus assembles ribosomal subunits by combining rRNA with ribosomal proteins imported from the cytoplasm.
Recognize that these ribosomal subunits are then transported out of the nucleus to the cytoplasm where they participate in protein synthesis.
Differentiate the nucleolus's function from other cellular functions such as protein packaging (Golgi apparatus), genetic information storage (chromatin in the nucleus), and ATP production (mitochondria).
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