Tag: protein

The functions of the mitochondria

The functions of the mitochondria

Functions are 1. The enzymes of the mitochondria cause oxidation of the nutrients (carbohydrate, protein, and fat), thereby forming carbon dioxide & water and liberate energy. The liberated energy is used to synthesize a high energy substance called a triphosphate (ATP). ATP is then transported out of the mitochondrion and it diffuses throughout the cell […]

April 30, 2012 | By | Reply More
The physiological importance of endoplasmic reticulum

The physiological importance of endoplasmic reticulum

 Functions of endoplasmic reticulum are 1.Granular endoplasmic reticulum Synthesis of protein in the cell. 2 Agranular endoplasmic reticulum Synthesis of lipid substances and in many other enzymatic processes of the cell. 3, Other significant function of the endoplasmic reticulum especially the smooth reticulum, include the following a.It provides the enzymes that control glycogen breakdown when […]

April 30, 2012 | By | Reply More
Chemical compound that make up the cell membrane

Chemical compound that make up the cell membrane

It is composed almost entirely of proteins and lipids. The approximate composition is 1.         Protein 55% 2.         Lipid   42% a.         Phospholipids  25% b.         Cholesterol      13% c.         Others lipids    4% 3.         carbohydrates : 3%. Q.  Name the chemical compound that make up the cell membrane.

April 28, 2012 | By | Reply More
The structure of a cell membrane

The structure of a cell membrane

Definition The cell membrane, which envelops the cell, is a thin, pliable, elastic structure. Thickness :7.5 to 10 nanometers. Structure Its basic structure is a lipid bilayer interposed with large globular protein molecules. a Lipid of the cell membrane : Composed almost entirely of phospholipids and cholesterol (lipid in nature). Hydrophilic : The phosphate radicle […]

April 28, 2012 | By | Reply More
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