General Science - Physics (Basics)
Which organelle acts as the semi-permeable barrier controlling the entry and exit of substances in a cell?
Which organelle acts as the semi-permeable barrier controlling the entry and exit of substances in a cell?
easy Q1 of 15
Step-by-Step Solution
Step 1: Understand the function asked
The question asks for the organelle that controls movement of substances in and out of the cell.Step 2: Recall organelle functions
The cell membrane is a semi-permeable membrane regulating entry and exit of substances. The cell wall is rigid and only in plants, nucleus controls cell activities, and Golgi apparatus packages proteins.Final Answer:
Cell Membrane → Option CQuick Check:
Cell boundary control = Cell Membrane ✅
Quick Trick: Cell membrane controls entry like a gatekeeper.
Common Mistakes:
- Confusing cell wall with cell membrane as barrier.
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