Question

Q1.Who discovered cells and how?
Q2.Distinguish between the following in one point each:
a)Amoeba and WBC
b)Unicellular and multicellular organisms

Answer 1

Answer:

Robert hooke discovered the cell in his laboratory while he saw the part of a tree and he saw some dead cells and this is how cells were discovered by Robert.

Answer 2

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The cell was first discovered and named by Robert Hooke in 1665. He observed the cells in thin slices of cork.

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WBC is a type of blood cell while Amoeba is a unicellular protozoan. So, this is the key difference between WBC and Amoeba. White blood cells are immune cells. They either destroy foreign particles through phagocytosis or help in the production of antibodies in response to many pathogenic antigens. There are five types of WBCs and among them, three types are granulocytes while two types are agranulocytes. Amoeba shows amoeboid locomotion through pseudopodia. It is the most primitive form of animal locomotion. Pathogenic species of amoeba that cause amebic dysentery is Entamoeba histolytica.

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