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Peroxisomes

Before this, knowChloroplasts: Structure and Function

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Peroxisomes

Peroxisomes are small organelles that help with metabolic reactions and digestion. They contain enzymes that use oxygen to remove hydrogen to produce hydrogen peroxide.

Lysosomes and peroxisomes slide: similarities are breaking down substances and being built with proteins; differences are where they bud (Golgi body and ER) and membrane size, with peroxisomes much smaller.

Slide 'The Job of Peroxisomes': under breaking down, peroxisome enzymes oxidize long-chain fatty acids and produce energy supplements; they are abundant in the liver, where lipids are stored, broken down and synthesized.

Slide 'The Job of Peroxisomes cont.': under building up, peroxisomes make chemicals as well as breaking them down, make cholesterol in animal cells, produce bile in liver cells, and contain enzymes for making phospholipids.

References:

Molecular Biology of the Cell

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Peroxisomes

Peroxisomes

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