Which type of plastid is specialized for the storage of starches and carbohydrates in plants?
Answer and explanation
Correct answer: C. Amyloplast
- Step 1: Leucoplasts are non-pigmented plastids specialized for nutrient storage in plant tissues.
- Step 2: Leucoplasts are subclassified by the type of nutrient accumulated: amyloplasts, elaioplasts, and aleuroplasts.
- Step 3: Amyloplasts convert glucose into amylose and amylopectin, storing large starch grains (e.g., in potato tubers and cereal endosperm).
Answer
Amyloplast.
Why not the others: Elaioplast stores lipids, oils, and fats (e.g., in oil seeds); Aleuroplast stores protein granules; Chromoplast contains carotenoid pigments providing yellow, orange, and red coloration to flowers and fruits.
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