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Cell : The Unit of Life

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Biology

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Biology

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12
Give the functions of Golgi complex. 

Functions of golgi bodies are :

1. It performs the function of packaging the material, delivering them to the target cells and in secretion. Materials to be packaged in the form of vesicles from the ER fuse with the cis face of the golgi apparatus and move towards trans face.

2. A number of proteins synthesised by ribosomes on the endoplasmic reticulum are modified by the golgi bodies before being released 

3.Golgi apparatus is the important site of formation of glycoproteins and glycolipids.


Who concluded, “Cells are the ultimate units forming the structure of all plant tissues”?

Mathias Schleiden.

 What are receptor molecules ?

Receptor molecules are specific proteins in the cell's plasma membrane that receive chemical signals from outside the cell. When such chemical signals bind to a receptor, they cause some form of cellular response. 

Who reported that the cell had an outer layer which is known as plasma membrane today?

Theodore Schwann 

What is the function of contractile vacuole in amoeba?

Excretion.

State one difference between gram positive and gram negative bacteria.

Gram positive bacteria retains the gram stain whereas the Gram negative bacteria does not.