Billions, but what needs attention are the trillions of unneeded molecules that are 'automatically' excluded from the cells of living organisms.
Proteins are molecules that feed living organisms. There are about twenty different kinds of proteins. Proteins are found in foods.
Hydrogen is a key component of molecules like water and organic compounds in living organisms. It is involved in many biological processes, such as providing structure to molecules, serving as a source of energy in metabolic reactions, and participating in maintaining the pH balance within cells.
Carbon has a unique chemistry that enables the formation of many many complex molecules. This chemistry is the basis of life as we know it and therefore carbon is present in all living things.
a variety of different kinds of molecules.Living organisms are made up of a variety of many different kinds of molecules. Some molecules, such as water and salt, are small. Other molecules, such as carbohydrates, fats, proteins, and DNA are large.
Organic molecules found in living organisms include carbohydrates (such as glucose), lipids (such as fats and oils), proteins (such as enzymes), and nucleic acids (such as DNA and RNA). These molecules play important roles in various biological processes essential for life.
Any link of uranium with the living organisms.
Carbon is present in all living organisms and in many non-living things, such as minerals, rocks, and the atmosphere. It is the fundamental building block of all organic molecules.
Oxygen is essential for most living organisms because it is used in the process of cellular respiration to produce energy. Organisms use oxygen to break down food molecules and generate ATP, the energy currency of cells. Without oxygen, many organisms would not be able to carry out this vital process and would not survive.
Probable many living organisms will disappear.
Hydrogen bonds can be found in many aspects of living organisms, such as in the structure of DNA double helix, in the folding of proteins, and in the interactions between different molecules within cells. These bonds are important for maintaining the structure and function of biological molecules.
Molecules that contain carbon, hydrogen, and oxygen are known as organic molecules. These molecules are commonly found in living organisms and are the building blocks of many essential biological compounds.
Most reactants in living things are organic molecules, such as carbohydrates, lipids, and proteins. These molecules are involved in various metabolic pathways, energy production, and structural functions within cells. Additionally, many reactants in living organisms are enzymes that catalyze biochemical reactions.