Question

Eukaryotic cells have organelles which may

1. not be bound by a membrane
2. bound by a single membrane
3. bound by a double membrane

Group the various sub-cellular organelles into these three categories.

Answer 1

1. Non-membrane bound cell organelles – Ribosome, Centrosome (Centriole), Nucleolus, Cytoskeletal structures.
2. Single membrane bound cell organelles – ER, GB, Lysosome, Vacuoles, Microbodies (Glyoxysomes and Peroxisomes), Thylakoid.
3. Double membrane bound cell organelles – Plastid, Mitochondria and Nucleus.