Multiple Choice
How do eukaryotic cells differ from prokaryotic cells?
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5. Cell Components
Prokaryotic & Eukaryotic Cells
Multiple Choice
Which of the following cellular adaptations is commonly used by halophiles to survive in high-salt environments?
A
Accumulation of potassium ions
B
Use of chlorophyll for photosynthesis
C
Formation of endospores
D
Production of antibiotics
Verified step by step guidance1
Understand the environment: Halophiles are organisms that thrive in high-salt environments, such as salt flats or saline lakes. These conditions can be challenging for most organisms due to osmotic stress.
Identify the challenge: In high-salt environments, cells face the risk of dehydration and loss of essential cellular functions due to the osmotic pressure exerted by the surrounding salt.
Explore cellular adaptations: To counteract the osmotic pressure, halophiles often accumulate compatible solutes within their cells. These solutes help balance the osmotic pressure without interfering with cellular processes.
Focus on potassium ions: One common adaptation is the accumulation of potassium ions (K⁺) inside the cell. This helps maintain osmotic balance and stabilize proteins and enzymes, allowing the cell to function properly despite the high external salt concentration.
Evaluate other options: While chlorophyll is used for photosynthesis, it is not directly related to salt tolerance. Endospores are a survival mechanism for harsh conditions but not specific to salt. Antibiotics are used to inhibit other organisms, not for salt adaptation.
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