Multiple Choice
Structures external to the bacterial cell wall that is used for motility (movement) by chemotaxis:
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26. Prokaryotes
Prokaryotic Motility
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What is the primary role of flagella in prokaryotic cells?
A
To facilitate movement
B
To conduct photosynthesis
C
To synthesize proteins
D
To store genetic information
Verified step by step guidance1
Begin by identifying the structure in question: flagella. Flagella are long, whip-like appendages found on the surface of some prokaryotic cells.
Understand the function of flagella. They are primarily involved in locomotion, allowing the cell to move through its environment.
Consider the options provided: facilitating movement, conducting photosynthesis, synthesizing proteins, and storing genetic information.
Evaluate each option: Photosynthesis is a process carried out by chloroplasts in eukaryotic cells or by certain prokaryotic cells using different structures, not flagella. Protein synthesis occurs in ribosomes, and genetic information is stored in DNA within the cell's nucleoid region or plasmids.
Conclude that the primary role of flagella in prokaryotic cells is to facilitate movement, as this is the function directly associated with flagella.
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