Name the following:

A cell component which is visible only in cell division stages.

Name the part of the cell in which:

Many chemical reactions occur with the help of the enzymes.

Name the part of the cell in which:

A network of chromatin fibers occurs.

Name the part of the cell in which:

Cellulose forms the main component.

Differentiate between

An organ and an organelle.

Differentiate between

A plant and animal cell pertaining to the presence of plastids.

Name the cell organelle concerned with  

Secretion of enzymes.

Name the cell organelle concerned with  

Trapping of solar energy.