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29 Cards in this Set
- Front
- Back
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The main source of energy for living things are ______.
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carbohydrates
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___ help to carry out chemical reactions.
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proteins
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Important parts of biological membranes are ___________.
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lipids
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____________ contains hydrogen, oxygen, nitrogen, phosphorus, and carbon.
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nucleic acids
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_____________ transport substances in and out of cells.
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proteins
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_________ are composed of amino acids.
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proteins
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sugar and starches are ________.
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carbohydrates
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________ store and transmit hereditary information.
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nucleic acids
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lipids are made up of fatty acids and ________.
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glycerol
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glucose, galactose, and fructose are carbohydrates called __________.
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monosaccharides
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the two basic kinds of nucleic acids are ______ and ________.
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ribonucleic acid (RNA) and deoxyribonucleic acid (DNA)
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______________ are polymers of amino acids.
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proteins
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a fatty acid with the maximum number of hydrogen atoms possible is ________.
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lipids
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No other element can form the amount and variety of molecules that carbon can form. What characteristics does carbon have that explain this characteristic?
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First, carbon atoms have 4 valence electrons. Each electron can join with an electron from another atom to form a strong covalent bond. Carbon can bond with many elements, including hydrogen, oxygen, phosphorus, sulfur and nitrogen.
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Plastics are synthetic, organic polymers. How are plastics similar to polysaccharides? How are they different?
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Polysaccharides are large macromolecules formed from monosaccharides. Polymers are monomers joined together to form a polymer.
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Carbon atoms are looking to bond to other atoms to form _______ bonds.
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covalent
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Carbon atoms can bond to what?
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other carbon atoms
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Carbon can form _____ or ____chains or form a ___.
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chains or branching chains or form a ring
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What are carbohydrates?
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class of biochemicals made of C,H, and O( carbon, hydrogen, and oxygen)good energy sources
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What is glycogen?
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an animal
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What do lipids contain?
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C,H,O- richer ratio of carbon to hydrogen they have
fats, oil, and do not dissolve in water |
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What are lipids good for?
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structural components and are good for storing energy and water proof coverings
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Single bonds are _____ double bonds are ____.
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saturated and unsaturated
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Proteins are macromolecules that contain ____,_____,_____,____.
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nitrogen, carbon, hydrogen, and oxygen
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There are more than ____ kinds of amino acids.
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20
1. 10 -12 can be made in our body 2. the remaining 8- 10 are from food |
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Proteins help to what?
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carry out chemical reactions, transport small molecules in and out of cells, and fight diseases
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Nucleic acids are huge ______.
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macromolecules
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Nucleic acids contain ____,___,____,___ or ___ and ___.
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C,H,O,N or DNA and RNA
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The monomer is a _____.
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nucleotide
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