Homework Help
Homework Help
View Details
Assignment Help
Assignment Help
View Details
Online Tutoring
Online Tutoring
View Details
The Cell
The cell is the fundamental unit of life. It is too small to be seen with the naked eyes. However, it can be seen with the help of microscope. Cells are packets of chemicals essential for life. The most important characteristic of the cell is its ability to grow and divide to produce cells. These daughter cells can further divide to produce new progeny of cells. Cells may be combined to form tissues; tissues may be grouped into organs; and organs may be combined into organisms. A typical animal cell is described diagrammatically in the figure below.

A living cell contains about 50 elements. The 11 most abundant elements in living organisms are O, C H, N, Ca, P, K, S, Cl, Na and Mg. the first four elements oxygen, carbon, hydrogen and nitrogen together account for 96% of man’s total mass. The most abundant substance in a human in a living cell is water which amounts to about 70% of the weight. In addition to water, the cell contains a large number of carbon compounds. These compounds can be divided into two classes. The molecular masses in the range of 100 to 1000 and containing upto 300 carbon atoms. These are found free in solution in the cytoplasm of the cell. They form a number of intermediates from which the molecules belonging to the second class are synthesized.

The compounds of the second class are macromolecules. Among these, the most important are: carbohydrates, proteins, lipids and nucleic acids.

All living systems need matter as well as energy in one form or the other for their growth and maintenance. The bodies of living organisms are compared to factories. Just as factories require fuels for liberation of energy and machines for the proper utilization of energy, the living machines and organisms help in the conversion of food into body parts through the series of chemical processes which are also called biochemical reactions. Most of the biochemical reactions take place in dilute solutions (pH-7) at body temperature (~ 37˚C) and at one atmospheric pressure. Biochemical reactions take place at high speed and are highly sensitive. The branch of science that deals with the study of the chemical composition and the structure of living organisms and also various chemical changes taking place within them is called biochemistry.

Services:- The Cell Homework | The Cell Homework Help | The Cell Homework Help Services | Live The Cell Homework Help | The Cell Homework Tutors | Online The Cell Homework Help | The Cell Tutors | Online The Cell Tutors | The Cell Homework Services | The Cell
Submit Your Query ???
Topics
Nucleic Acid Functions Carbohydrates Glucose-Cyclic Structure Disaccharides Enzymes Fructose Functions Of Carbohydrates Glucose Hormones Enzyme Activity Mechanism Monosaccharides Nucleic Acids Polysaccharides Proteins, Amino Acids Proteins Structure The Cell Vitamins Biostatistics Mutarotation Monosaccharides Properties Compound Lipids Derived Lipids Fatty Acids Lipids Simple Lipids Radiation-Detection Measurement Synthetic Polymers Amino Acids Bioenergetics Biological Oxidation Reduction Cell Membrane Cell Motility, Cytoskeleton Cerebrospinal Fluid Chromatography Proteins Classification Clonal Selection Theory Blood Coagulation Coenzymes Nerve Impulse Conduction Connective Tissue DNA, RNA Diagnostic Applications Lipids-Digestion, Absorption Proteins-Digestion, Absorption Endoplasmic Reticulum Enzyme Inhibition Enzyme Linked Assay Enzymes Classification Erythrocytes Vitamins-Complex Group Extracellular Enzymes Fermentation, Putrefaction Fibrinolysis Folic Acid ATP Functions Bile Salts Functions Functions Of Blood Plasma Proteins Functions Gastric Juice Hemoglobin Blood Lacing Hemolysis Blood Clotting Inhibitors Intermediary Metabolism Enzymes Intracellular Location Leukocytes Lymph, Sweat, Synovial Fluid Histocompatibility Proteins-Transport Mechanism Metabolism Study Mitochondria Muscles Niacin Nucleoproteins Nucleotides Nucleus Oxidative Phosphorylation Oxyhemoglobin Pancreatic Juice Peptides Importance Proteins Properties Polyacrylamide Electrophoresis Amino Acids Properties DNA Properties Proteins Characterization Nucleotide Transhydrogenases Relaxation Riboflavin Saliva Nucleic Acids Structure Protein Molecule Structure Thiamine Transmission At The Synapse Transport Across Membranes Variations In Disease Vitamin A Vitamin B Vitamin C Vitamin D Vitamin E Vitamin K