Define histology, Organism, Cytoplasm & Endoplasmic Reticulum

What is histology? Give basic definition

Histology relates study of tissues in animals and plants see by microscope.

How a complete organism is made?

Basically it is called a complete living system in Biology, In first, cells then tissues then organs then systems and then a complete organism is made.

Why cell is made up in first?

The cell is made up in first because the cell is the basic unit of life in case of all living things. This is very important part of study. Every organ and part of a living body is start to develop through cells.

What is cytoplasm?

In cell, Cytoplasm is found in nucleus and cell membrane.it is translucent fluid portion.it consists of an aqueous ground substance called cytosol and granular part called cytoplasmic organelles.

What is endoplasmic reticulum?

Endoplasmic reticulum means (inside protoplasm network).
It is the network of tubules extending and membranous channels throughout the cytoplasm.
Two types of endoplasmic reticulum:
1. Rough endoplasmic reticulum ribosomes are present.
2. Smooth endoplasmic reticulum ribosomes are absent.