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Peroxisome

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Peroxisomes are ubiquitous organelles in eukaryotes that participate in the metabolism of fatty acids and other metabolites. Peroxisomes have enzymes that rid the cell of toxic peroxides.


Peroxisomes are ubiquitous organelles in eukaryotes. They consist of a single membrane that separates them from the cytosol (the internal fluid of the cell). Peroxisomes were discovered by Christian de Duve in 1965.

Peroxisomes - Biology Encyclopedia forum
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Peroxisomes - Another Enzyme Package
There are many ways that peroxisomes are similar to lysosomes. They are small vesicles found around the cell.

Peroxisomes
Microbodies are a diverse group of organelles that are found in the cytoplasm of almost all cells, roughly spherical, and bound by a single membrane.

Peroxisomes
Peroxisomes are about the size of lysosomes (0.5-1.5 µm) and like them are bound by a single membrane. They also resemble lysosomes in being filled with enzymes.

Peroxisome
Cell organelle containing enzymes involved in the production or destruction of hydrogen peroxide (H2O2).
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Peroxisomes
Peroxisomes are single-membrane structures found in all eukaryotic cells. They are small, membrane-bound structures that use molecular oxygen to oxidize organic molecules.

peroxisome
(per-oks-eh-some)
A microbody containing enzymes that transfer hydrogen from various substrates to oxygen, producing and then degrading hydrogen peroxide.
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Peroxisome
Eukaryotic organelle that degrades fatty acids and amino acids
Also degrades the resulting hydrogen peroxide
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peroxisomes Membrane-bound vesicles in eukaryotic cells that contain oxidative enzymes.
pesticides Chemicals that are applied to agricultural crops or domesticated plants and which kill or inhibit growth of insects.

Peroxisomes
Some metabolic processes within cells require the removal of hydrogen (oxidation) from certain molecules. For example, the breakdown of fatty acids often involves the removal of hydrogen.

peroxisome /pə-ROCKS-ə-soam/ n. In a eukaryotic cell, small organelles ("microbodies") containing enzymes that transfer hydrogen to oxygen from various substrates.

Peroxisomes generate and degrade H2O2 in performing various metabolic functions.
Peroxisomes contain enzymes that transfer hydrogen from various substrates to oxygen.

peroxisome cytoplasmic body containing enzymes for digestion.
phagocytes cells that attack and engulf invading microorganisms.

peroxisome
Small organelle in eukaryotic cells whose functions include degradation of fatty acids and amino acids by means of reactions that generate hydrogen peroxide, which is converted to water and oxygen by catalase.
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Peroxisome: Peroxisomes are membrane-bound packets of oxidative enzymes. In plant cells, peroxisomes play a variety of roles including converting fatty acids to sugar and assisting chloroplasts in photorespiration.

Peroxisomes or Microbodies
Produce and degrade hydrogen peroxide, a toxic compound that can be produced during metabolism.
Cell wall
Plants have a rigid cell wall in addition to their cell membranes.

peroxisomes - small membrane -bounded organelle that uses molecular oxygen to oxidize organic molecules.

peroxisome A cellular microbody containing enzymes involved with photorespiration and photosynthesis.
peroxisome A microbody found in leaves and often associated with chloroplasts.

For example, 3 of the 11 genes predicted in the category 'acyl-CoA/fatty acid/peroxisome' encode a short-chain dehydrogenase motif, suggesting that they are metabolic enzymes.

The proteins found in the nucleus, mitochondria, chloroplasts, cytoplasm, and peroxisomes are all synthesized on free ribosomes in the cytoplasm and not on the RER.

See also: See also: Cell, Organ, Cells, Protein, Membrane

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