BI-237
Parts of plant and animal cells
Biology · Secondary 3 · Medium · Parts of plant and animal cells
Plant root hair cells absorb mineral ions from the soil using cell surface membrane proteins. Which statement best explains the role of these proteins?
- They control what substances enter and leave the cell.
- They control all the activities of the cell.
- They provide a rigid shape to the cell.
- They release energy from food substances.
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