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Plant Growth And Development

Question
CBSEENBI11002571

In germinating seeds fatty acids are degraded exclusively in the

  • proplastid

  • glyoxisomes

  • peroxisomes

  • mitochondria

Solution

B.

glyoxisomes

Glyoxysomes are found to occur in the cells of yeast, Neurospora and oil-rich seeds of many higher plants. During germination of oily seeds, the stored lipid molecules of spherosomes are hydrolyzed by the enzyme lipase to glycerol and fatty acids. The long chain fatty acids are then broken down by successive removal of two carbon fragments in the process of beta -oxidation.
Peroxisomes are present in all photosynthetic cells of higher plants in etiolated leaf tissue. It is the site of hydrogen peroxide metabolism and glycolate cycle.
Mitochondria is the site of aerobic respiration in a eukaryotic cell. It is called powerhouse of the cell.
During the development of chloroplast, the first structure to appear is so called proplastid, which has a double membrane.