Multiple Choice
In eukaryotic cell architecture, which structure primarily controls the cell's activities by housing the genetic material and regulating gene expression?
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1. Overview of Cell Biology
Eukaryotic Cell Architecture
Multiple Choice
In the context of eukaryotic cell architecture, what is the jelly-like substance that fills the cell and surrounds organelles?
A
Cell wall
B
Nucleolus
C
Smooth endoplasmic reticulum
D
Cytosol
Verified step by step guidance1
Understand the components of a eukaryotic cell: it consists of various organelles suspended within a fluid substance.
Identify the jelly-like substance that fills the interior of the cell and surrounds the organelles; this substance is not a structure like the cell wall or organelles such as the nucleolus or smooth endoplasmic reticulum.
Recall that the cell wall is a rigid outer layer found in plant cells and some other organisms, not a jelly-like substance inside the cell.
Recognize that the nucleolus is a dense region within the nucleus involved in ribosome production, and the smooth endoplasmic reticulum is a membrane-bound organelle involved in lipid synthesis and detoxification.
Conclude that the jelly-like fluid filling the cell and surrounding organelles is the cytosol, which is the aqueous component of the cytoplasm where many cellular processes occur.
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