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The four elements comprising over90 percent of living matter are C H N AND Na?
The four elements comprising over 90% of living matter are C, H, N, and O.
What element is found in nature not made of molecules?
Air, water, plants, and animals are not made of rocks. Atoms and molecules are not made of rocks, although rocks are made of them.
Why does living things need water?
It has to do with what goes on at the cellular and molecular level. In order for Cells to function, they need ATP, which is energy produced by the mitochondria. In order to produce ATP, the cell needs oxygen, carbon, and hydrogen. Two of those elements needed are Hydrogen and Oxygen, both found in Water. So basically, water is a convenient place to get Hydrogen and Oxygen, which are needed for cells to produce ATP. If there were some other place to easily acquire those elements way back when cells first started evolving, perhaps we wouldn't need water, or perhaps ATP would be be made differently or wouldn't exist at all. I dunno
What are the SPONCH elements?
The SPONCH elements are sulfur, phosphorus, oxygen, nitrogen, carbon, and hydrogen. These elements are the most common elements found in living organisms and are essential for the formation of organic molecules such as proteins, carbohydrates, lipids, and nucleic acids.
What are the four most common elements in living things?
The four most common elements in living things are carbon, hydrogen, oxygen, and nitrogen. These elements are essential for building organic molecules like carbohydrates, lipids, proteins, and nucleic acids that make up living organisms.
What are some of the key elements that living cells are composed of?
Carbon, Hydrogen, and Oxygen
Which elements are found in all living and once living things?
calcium
Are elements and molecules living?
No, cells are the most basic living structural units.
Are all cells living things?
some cells are living some are not
What do hydrogen oxygen carbon and nitrogen have in common?
these elements are macronutrients.
Which are the four abundant elements in living cells?
carbon, oxygen, hydrogen, nitrogenAlthough all of these elements are found in living cells, the most abundant are carbon, hydrogen and oxygen (for carbohydrates and lipids) and nitrogen (for proteins and nucleic acids).
Why living things have cells?
Living things need cells to live and survive.Without cells,they cannot live. Plants and animals are some examples of living things who have cells in their body.
Is a calcium made of cells?
Calcium is made of atoms, not cells, as calcium by itself is a non-living element whereas cells are made up of thousands and thousands of elements that work in unison to produce a living cell.
What are some ways in which radioactive elements can be dangerous?
Radiation, even in small doses, can cause cancer in humans and other living things Alpha radiation is responsible for most of the damage of DNA in living cells
What are some non living things made of cells?
There are none. Having cells is what makes something living
What is meant by chemical disaster?
Life threating to all forms of living cells, and to the elements of life.
Does everything have cells?
All known living things have cells. There are many non-living things that do not have cells.
