Leucoplast is a colourless plastid which stores proteins, lipids and starch, while xanthophyll are yellow, read or Orange pigments of green plants.

The spontaneous movement of a substance from a region of high concentration to a region where its concentration is low is done by the process of diffusion.

The main postulates of cell theory are (i) All plants and animals are made up of cells and cell products. (ii) All metabolic reactions take place in cells. Thus, cells are the structural and functional units of life. (iii) All ...

The Xylem parenchyma stores food and helps in the sideways conduction of water.

Sclerenchyma cells are the permanent tissue present in plants. They provide rigidity and rigidity to the plant and are made up of dead cells. This tissue is present in the veins of leaves, around the vascular bundles in the stems ...