1. Enzymes of the lysosomes are synthesised in the rough endoplasmic reticulum. 2. This was the crucial step in the serendipitous discovery of lysosomes . 3. The production of lysosomal proteins suggests one method of lysosome sustainment. 4. The phagosome then combines with a lysosome to create a phagolysosome. 5. It is a glycoprotein enzyme found in the lysosomes of cells. 6. These inclusion bodies represented lysosomes that were filled with undigestable material. 7. It is a molecular chaperone that works in lysosomes and endosomes. 8. Doa4 removes ubiquitin from cargo proteins being targeted to the lysosome . 9. Lysosomes are known to contain more than 60 different enzymes.10. The enzymes are packed into vesicles for further transport to established lysosomes .