Question

Ch-1 Nutrition in Plants
2.1 Who coined the term cell for the first time?
2.2 State any three points of difference between a plant cell and an animal cell?
2.3 What will happen if there will be no nucleus in a cell?
2.4 Why a plant cell has a big large vacuole?
2.5 Why cell wall is absent in an animal cell?
2.6 What is the difference between a cell wall and a cell membrane?
2.7 Why the position of Nucleus varies in a plant& an animal cell?
2.8 Find the names of the largest and smallest cell in the living world.
2.9 Find the names of the largest and smallest cell in the human body.
2.10 What is the role of a vacuole?​

Answer 1

Explanation:

A plant cell is surrounded by rigid cell wall whereas animal cell does not have cell wall. Presence of a large vacuole in plant cell, which is small in animal cell. Plant cells are larger than animal cells. Plant cells have plastids whereas animal cells do not have plastids

A vacuole is a membrane-bound cell organelle. In animal cells, vacuoles are generally small and help sequester waste products. In plant cells, vacuoles help maintain water balance. Sometimes a single vacuole can take up most of the interior space of the plant cell.

The largest cells is an egg cell of ostrich. The longest cell is the nerve cell. The largest cell in the human body is female ovum. Smallest cell in the human body is male gametes, that is, sperm.