)(n.) An imaginary memory area supported by some operating systems (for example, Windows but not DOS) in conjunction with the hardware. You can think of virtual memory as an alternate set of memory addresses. Programs use these virtual addresses rather than real addresses to store instructions and data. When the program is actually executed, the virtual addresses are convertedinto real memory addresses.
To accomplish the tasks associated with digestion, the lysosomes use some 40 different types of lysosomal enzymes, such as glycosidases, protease, acid phosphatases, sulfatases and lipases.Lysosomal enzymes are synthesized in the endoplasmic reticulum and modified in the Golgi apparatus.ysosomal Enzymes. To accomplish the tasks associated with digestion, the lysosomes use some 40 different types of lysosomal enzymes, such as glycosidases, protease, acid phosphatases, sulfatases and lipases. Lysosomal enzymes are synthesized in the endoplasmic reticulum and modified in the Golgi apparatus.
View Full Document. Lysosomes are vesicles that contain digestive enzymes. These can fuse with vesicles containing extracelluar material or old organelles, causing the contents to be degraded. Peroxisomes are a subclass of microbodies that carry out oxidative metabolism that generates peroxides. The isolation of these enzymes in vesicles protects the rest of the cell from the very reactive chemistry occurring inside. Vacuoles are membrane-bounded structures that have a variety of roles ranging from storage to cell growth in plants.