Why human are living while human made up of a non living things that atom
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An atom is the smallest possible piece of an element that retains all the properties of that element. For example, a hydrogen atom reacts the same as a barrel full of hydrogen. Each atom is a building block. If you put two atoms of hydrogen (H) together, you get a molecule (H2)
If you add that molecule of hydrogen to an atom of oxygen (O), you create a molecule of water. A molecule is a conglomerate of atoms.
Your body contains many different types of molecules that form the working parts, such as cells, as well as substances produced by some of those parts, such as hormones.
Singling out cells: The stuff of life
Your cells perform many important functions without which you wouldn't be able to go about your business. While you breathe, your cells exchange thebad air for the good air. While you eat, cells produce the enzymes (proteins that speed up a chemical reaction) that digest the food and convert the nutrients into a useable form of energy. In short, your cells are like tiny motors that keep you running.
Each cell in your body performs the same tasks that your body as a whole performs:
Converting energy
Digesting food
Excreting waste
Reproducing
Taking in oxygen
No smaller component than the cell performs all those important functions. That's why the cell is the "fundamental unit of life." Every living thing has cells, and those cells perform basically the same functions whether they're in a human, a horse, or a hyacinth.
Teaming up with tissues
The body contains several different types of cells, such as blood cells, nerve cells, and muscle cells. When cells of the same type "hang together" so to speak, and perform the same function, a tissue is formed. When you think oftissue, you probably think of skin, if not the box of facial tissues that you grab whenever you sneeze. In fact, the body contains four classes of tissues.
Connective tissue, whichis found in blood and bones, serves to support body parts and bind them together.
Epithelial tissue (epithelium) is the type of tissue that lines organs and covers the body.
Muscle tissue — surprise! — is found in the muscles, which allow your body parts to move via the acts of contraction and relaxation.
Nerve tissue transmits impulses and forms nerves.
Organs (not the keyboard kind)
Atoms make up molecules; molecules make up cells; cells make up tissues; and two or more kinds of tissues working together make an organ. An organ is a part of the body that performs a specialized physiologic function. For example, the stomach contains epithelial tissue, muscle tissue, nerve tissue, and connective tissue, and the stomach has the specific physiologic function of breaking down food.
Organizing your organ systems
An organ system is a group of specialized organs working together to achieve a major physiological need. For example, the mouth, esophagus, stomach, small intestine, and large intestine are all organs of the digestive system. The digestive system is the organ system responsible for breaking down foods into nutrients that can be transported through the bloodstream.
This is in short A JOURNEY FROM ATOMS TO FULLY OPERATIONAL SELF CONSCIOUS HUMANS.
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If you add that molecule of hydrogen to an atom of oxygen (O), you create a molecule of water. A molecule is a conglomerate of atoms.
Your body contains many different types of molecules that form the working parts, such as cells, as well as substances produced by some of those parts, such as hormones.
Singling out cells: The stuff of life
Your cells perform many important functions without which you wouldn't be able to go about your business. While you breathe, your cells exchange thebad air for the good air. While you eat, cells produce the enzymes (proteins that speed up a chemical reaction) that digest the food and convert the nutrients into a useable form of energy. In short, your cells are like tiny motors that keep you running.
Each cell in your body performs the same tasks that your body as a whole performs:
Converting energy
Digesting food
Excreting waste
Reproducing
Taking in oxygen
No smaller component than the cell performs all those important functions. That's why the cell is the "fundamental unit of life." Every living thing has cells, and those cells perform basically the same functions whether they're in a human, a horse, or a hyacinth.
Teaming up with tissues
The body contains several different types of cells, such as blood cells, nerve cells, and muscle cells. When cells of the same type "hang together" so to speak, and perform the same function, a tissue is formed. When you think oftissue, you probably think of skin, if not the box of facial tissues that you grab whenever you sneeze. In fact, the body contains four classes of tissues.
Connective tissue, whichis found in blood and bones, serves to support body parts and bind them together.
Epithelial tissue (epithelium) is the type of tissue that lines organs and covers the body.
Muscle tissue — surprise! — is found in the muscles, which allow your body parts to move via the acts of contraction and relaxation.
Nerve tissue transmits impulses and forms nerves.
Organs (not the keyboard kind)
Atoms make up molecules; molecules make up cells; cells make up tissues; and two or more kinds of tissues working together make an organ. An organ is a part of the body that performs a specialized physiologic function. For example, the stomach contains epithelial tissue, muscle tissue, nerve tissue, and connective tissue, and the stomach has the specific physiologic function of breaking down food.
Organizing your organ systems
An organ system is a group of specialized organs working together to achieve a major physiological need. For example, the mouth, esophagus, stomach, small intestine, and large intestine are all organs of the digestive system. The digestive system is the organ system responsible for breaking down foods into nutrients that can be transported through the bloodstream.
This is in short A JOURNEY FROM ATOMS TO FULLY OPERATIONAL SELF CONSCIOUS HUMANS.
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