All living beings are made up of cells, this being the smallest part of living matter that has the capacity to perform vital functions.But do you have any idea how many cells a human body has? Then Science Daily Online responds to you.
What is a cell?
The cell can be defined as the part smaller of the living matter that is capable of fulfilling all the vital functions, that is to manufacture energy or to grow, to reproduce and also to breathe.Unlike our human body, there are many living beings that exist and that are made up of only one cell, such as bacteria , yeasts, protozoa and microscopic algae; and therefore they are called unicelulares .
Multicellular
The rest of living things are called multicellular , given that they consist of several cells that group together to form tissues and, in turn, tissues make up systems and organs.People are multicellular living beings.
So, How many cells do we have?
The human body is made up of more than fifty billion cells called eukaryotes.
The types of Cells
There are two cell classes : prokaryotes and eukaryotes.In the cells you can find two well-defined sectors such as the nucleus and the cytoplasm. prokaryotic cells are typical of archaea and ba cterias, possess the genetic material concentrated mainly in the central zone of the cytoplasm, but do not have a protective membrane that delimits with its nucleus.Except for ribosomes, they do not have specialized organs either.The name of "prokaryotic" comes from the Greek language: pro=before and karion=nucleus and so called cells that do not have a defined cell nucleus.Eukaryotes means "with nucleus".
Cells called eucariotas on Genetic type material that is DNA, is comprised in the nucleus and protected by a membrane.They are characteristic of vegetables, animals, protozoa and fungi, they have specialized organs to fulfill all the functions that are vital for our organism.> vegetable cells are distinguished from the rest of eukaryotic cells ong>, such as animal cells, for having in their cytoplasm organs capable of carrying out the process of photosynthesis, through which vegetables get their own food.
Images: stutteringmedia, NIAID, Xevi V
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