Questions tagged [organelle]

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“Bacteria don't have membrane-bound organelles.” Are sulfur bacteria or Cyanobacteria exceptions?

Can bacteria have membrane-bound organelles? I read this many textbooks: Bacteria cells are simple cells that do not contain a nucleus or other membrane-bound organelles. However, they do contain ...
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Does Rough ER (RER) produce phospholipids?

I have found out that rough endoplasmic reticulum (RER) produces membranes. Therefore it has to produce phospholipids, but I thought that the smooth ER was where the synthesis of lipids occurs. What ...
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Where is catalase produced?

I am doing a research project on the peroxisomes, and in it I referenced the enzyme catalase, which breaks down hydrogen peroxide into water and oxygen. However, the assignment asks me to specify the ...