The document summarizes the chemical composition of cells. It discusses that cells contain water, inorganic salts, and organic compounds. Water makes up 70-80% of most living tissues and is essential for biochemical reactions in cells. Inorganic salts such as sodium, potassium, calcium, and phosphates are also abundant in cells and are important for structure and metabolism. Organic compounds in cells include carbohydrates, lipids, proteins, and nucleic acids. Carbohydrates include sugars that can be joined together in chains to form starches and cellulose. Lipids provide energy and structure. Proteins carry out most functions in cells and are made of amino acids. Nucleic acids DNA and RNA contain the cell's genetic information and
Šta sve ugrožava opstanak životinja i dovodi do smanjenja brojnosti njihovih populacija ili do izumiranja vrste. Koje su ugrožene vrste na području Srbije, a koje su globalno ugrožene, kako ih zaštititi i omogućiti im opstanak.
The document summarizes the chemical composition of cells. It discusses that cells contain water, inorganic salts, and organic compounds. Water makes up 70-80% of most living tissues and is essential for biochemical reactions in cells. Inorganic salts such as sodium, potassium, calcium, and phosphates are also abundant in cells and are important for structure and metabolism. Organic compounds in cells include carbohydrates, lipids, proteins, and nucleic acids. Carbohydrates include sugars that can be joined together in chains to form starches and cellulose. Lipids provide energy and structure. Proteins carry out most functions in cells and are made of amino acids. Nucleic acids DNA and RNA contain the cell's genetic information and
Šta sve ugrožava opstanak životinja i dovodi do smanjenja brojnosti njihovih populacija ili do izumiranja vrste. Koje su ugrožene vrste na području Srbije, a koje su globalno ugrožene, kako ih zaštititi i omogućiti im opstanak.