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Elements any substance that cannot be broken down into simpler substances.
Compounds when 2 or more elements chemically combine. Compounds that cells need:
Organic compounds carbohydrates, lipids, proteins, and nucleic acids. Organic compounds must contain carbon.
Inorganic compounds water. Inorganic compounds DO NOT contain carbon.
Carbohydrates energy rich organic compounds made of carbon, hydrogen, and oxygen. Items that have sugar and starches would be carbohydrates. Examples: potatoes, pasta, rice, and bread.
Lipids Fats, oils, and waxes. Examples: whole milk, ice cream, and fried foods.
Proteins large organic molecules made mostly of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. Examples: meat, dairy, fish, nuts, beans.
Enzymes a group of proteins that helps speed up chemical reactions in living things.
Nucleic Acids Long organic compounds made of carbon, oxygen, hydrogen, nitrogen, and phosphorus. Nucleic acids contain the instructions that carry out all the functions of life.
DNA The genetic material that carries information about an organism and is passed from parent to offspring. Double Helix: Shape of the DNA molecule
Water in cells: A. Water is needed for most chemical reactions in cells
Water in cells: B. Water helps cells keep their shape.
Water in cells: C. Water helps cells maintain their temperature
Water in cells: D. Water helps cells carry substances in and out of them
Created by: user-2006768
 

 



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