MediumBiologyHigh School (9–10)GeneralCell Biology › Cell Structure and OrganellesConceptualBoard Exam
A cell from the root of a carrot lives under the soil, where there is no light…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
A cell from the root of a carrot lives under the soil, where there is no light. Would you expect to find chloroplasts in it? Which plant-cell parts would you still expect? Give reasons.
Need a reminder? The key ideaShow
Every cell has a plasma membrane, cytoplasm and, except in bacteria, a nucleus. Plant cells also have a cell wall, chloroplasts and a large vacuole. Mitochondria release energy from food.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. Chloroplasts. No. Chloroplasts use light to make food, and no light reaches the root. A carrot root stores food made in the leaves.
Step 2. What is still there. A cell wall and a large vacuole, as in other plant cells, and a nucleus and mitochondria, as in every eukaryotic cell.
Answer: no chloroplasts; but a wall, a large vacuole, a nucleus and mitochondria.
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