Fimbriae are larger then pili. These appendages attache bacteria to rock surfaces and host tissue.

Polyribosomes are a cluster of ribosomes bound to mRNA molecule in the act of protein synthesis.

Number of Golgi bodies increases during cell division when these organelles secrete materials to form cell plate.

Vacuoles are members of endomembrane system.

Polar molecules pass through non-polar lipid-bi layer by carrier protein molecules.

Peroxisomal disorders are a class of medical conditions that typically affect the human nervous system as well as many other organ systems.

SER is the major site of lipid biosynthesis.

Golgi bodies are characterised by cis and trans faces.

Golgi bodies are involved in the formation of proteoglycans.

The Golgi apparatus is a major collection and dispatch station of protein products received from the endoplasmic reticulum (ER).

Vacuoles are fluid filled structures which help in storage.

Membrane around vacuoles is called tonoplast.

Lysosomes change the nature of their contents at different times in the cell. This is called polymorphism.

Contractile vacuoles help in excretion in protozoans like amoeba.

An endosome is a membrane-bounded compartment inside eukaryotic cells. It is a compartment of the endocytic membrane transport pathway from the plasma membrane.