Question

Answer the following question: (a) Name the two organelles present in a plant cell that contains their own genetic material and ribosomes. (b) how do bacterial cell different from onion peel cell? (c) which cell organelle controls most of the activities of the cell? (d) which kind of plastid are more common in root and flower of the plant?

Answer 1

(a).Mitochondria and Chloroplast

(b).Bacterial cells are Prokaryotic whereas onion cells are Eukaryotic. ... In bacterial cell, cell organelles are absent but in Onion cell plastids,chloroplast,mitochondria and golgi bodies are present. In bacterial cell circular DNA is present and in Onion cell it is present inside the nucleus.

(c).Mitochondria

(d). Roots of plant contain leucoplast which are colourless plastids and act as storage of food.Flowers and fruits contain multicoloured chromoplast to attract pollinators.

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