BRAINCAKEProtoctista
Protoctists are mainly unicellular eukaryotic organisms with a membrane-bound nucleus and membrane-bound organelles.
The ribosomes are 80S ribosomes.
All have mitochondria and some have chloroplasts for photosynthesis.
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Key terms in this lesson
- organelle
- A membrane-bound structure within a cell with a specific structure suited to a specific function.
- mitochondrion
- An organelle with a double membrane, the inner one folded into cristae, that is the site of aerobic respiration and ATP production.
- eukaryotic cell
- A cell with a nucleus and membrane-bound organelles, found in animals, plants, fungi and protoctists.
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