how many cells are there in a human body?

Question

i just wanna know how many cells are in the human body from a pro

Answer 1

Three basic categories of cells make up the mammalian body : germ cells , somatic cells and stem cells .

Each of the approximately 100.000.000.000.000 ( or 10 square fourteen ) cells in an adult human has its own , or copies , of the genome ( * genome - whole hereditary information and is encoded in the DNA or for some viruses RNA , this includes both of the genes and the non-coding sequences of the DNA ) , with the only exception being certain cell types lack nuclei in their fully differentiated state , such as red blood cells ( * red blood cells are most common type of blood cell and the vertebrate body's principal means of delivering oxygen from the lungs or gills to body tissues via the blood ) .

The majority of these cells are diploid ( diploid cells have two copies - homologs - of each chromosome , usually one from the mother and one from the father ) or meaning they have two copies of each chromosome .

This category of cells , called somatic cells , includes most of the cells that make up the human body , such as skin and muscle cells .

Germ line cells are any line of cells that give rise to gametes - eggs and sperm - and are continuous through the generations .

Stem cells , on the other hand , have the ability to divide for indefinite periods and to give rise to specialized cells . They are best described in the context of normal human development .

Note : I believe that since there are 3 types of cells and each type is approximately 100.000.000.000.000 , then the answer is 100.000.000.000.000 x 3 or 10 square fourteen multipling per three , which is , if i am correct , approximately 300.000.000.000.000 cells or more ...

Answer 2

The answers below are correct--as far as eukaryotic cells go. But you might be surprised to learn that you have many more bacterial cells inside you than you have 'human' cells.

Among the human cells, there are about 250 discrete types of cells. The intersting physiology comes about because the cells organize themselves into patterns (tissues) and then communicate within and across tissues.

Answer 3

The body consists of millions of cells working individually and with each other to sustain life. Cells are considered to be the basic building blocks for the various structures that together makeup the human being. There are several types of cells, each specialized to perform specific functions. The size and shape of a cell are generally related directly to its funtion. For example, cells forming the skin overlap each other to form a protective barrier, whereas nerve cells are usually elongated with branches connecting to other cells for the transmission of sensory impulses. Despite these differences, however, cells can generally be said to have a number of common components. The common parts of the cell are the cell membrane and the protoplasm.

The outer covering of the cell is called the cell membrane. It has the capability of allowing some substances to pass into and out of the cell while denying passage to other substances. This selectivity allows cells to recieve nutrition and dispose waste just as the human being eats food and disposes of waste.

The substance within the cell membrane is called Protoplasm. It is composed of cytoplasm and karyoplasm.

Karyoplasm-Enclosed in its own membrane, it is the substance of the cell's nucleus and contains genetic matter necessary for cell reproduction as well as control over activity with in the cell's cytoplasm.

Cytoplasm-All protoplasm outside the nucleus. The cytoplasm provides storage and work areas for the cell. The work and storage elements of the cell, called organelles, are the endoplasmic reticulum, ribosomes, Golgi apparatus, mitochondria, lysosomes, and centrioles.

Answer 4

If 'body cells' are the cells in a human body, then yes. If 'body cells' refers to cells of another creature's body, then no. Good luck. Lots of it.

Answer 5

there are billions of cells