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Bio-Chemistry
Science
| Question | Answer |
|---|---|
| Organic compounds. | Very complex compounds that contain both the elements carbon and hydrogen. |
| Types of organic compounds. | Carbohydrates, lipids, proteins, and nucleic acids. |
| How many covalent bonds can carbon have with other atoms? | Four. |
| Inorganic compounds. | Simple compounds that do not contain carbon and hydrogen. |
| Examples of inorganic compounds. | Water, mineral salts, acids, bases. |
| *Note: H=Hydrogen, C=Carbon, C followed by a letter does not mean carbon!* | :D |
| What elements are carbohydrates made up of? | Carbon, hydrogen, and oxygen. |
| What is the building block of carbohydrates? | Glucose (Chemical formula- C6H12O6). |
| How are carbohydrates shaped? | Like a ring. |
| In carbohydrates, ____________ and ___________ have a ratio of (_____:_____). | Hydrogen, oxygen, 2:1. |
| Examples of carbohydrates and their type. | M- Glucose, fructose, galatose. D- Sucrose, maltose, lactose. P- Starch, cellulose, glycogen. (The corresponding ones become each other when synthesized.) |
| Types of carbohydrates. | Monosaccharides, disaccharides, polysaccharides. |
| Dehydration synthesis. | Starts small and simple and becomes large and complex, chemical processes by which two molecules are joined to form a larger molecule, water gets removed. |
| Hydrolysis. | Large molecules are broken down into smaller molecules by the addition of water. |
| Uses of Carbohydrates. | ENERGY, make cell structures, can be converted to fats and proteins, stored in the form of starches. |
| What elements are lipids composed of? | Carbon, hydrogen, and oxygen. |
| Examples of lipids. | Fats, oils, and waxes. |
| Building blocks of lipids. | Fatty acid and glycerol. |
| Ratio of Hydrogen to Oxygen of a lipid. | Greater than 2:1. |
| Dehydration synthesis of a lipid formula. | 3 fatty acids + 1 glycerol -------------> 1 lipid +3 water. |
| Hydrolysis of a lipid formula. | 1 lipid + 3 water -----------------> 3 fatty acids + 1 glycerol. |
| Uses of lipids. | Store energy, structural compounds of cell membranes, insulation for warmth. |
| What elements are proteins composed of? | Carbon, hydrogen, oxygen, nitrogen, sulfur, phosphorus. |
| Building blocks of proteins. | Amino acid. |
| Parts of the amino acid structure. | Amino group (left), Variable (bottom R), carboxyl group (right). |
| Dehydration synthesis of a protein formula. | Amino acid + amino acid -----------------> dipeptide + water. |
| What joins the nitrogen and carbon together? | A peptide bond. |
| Hydrolysis of a protein formula. | Dipeptide + water --------------------> amino acid + amino acid. |
| Uses of proteins. | Makes cell structure, growth, repair cells, sends signals to cells (receptor proteins), pigments in skin and eyes. |
| Examples of proteins. | Enzymes (catalyze chemical reactions), antibodies (defense against invaders), hormones (chemical messengers). |
| Formula for dehydration synthesis of carbohydrates. | C6H12O6 + C6H12O6 -----------------> C12H22011 + H20. |
| Formula for hydrolysis of carbohydrates. | C12H22O11 + H20 -----------------> C6H12O6 + C6H12O6. |
| What elements do nucleic acids contain? | Carbon, hydrogen, oxygen, phosphorus. |
| Examples of nucleic acids. | DNA and RNA. |
| Building block of nucleic acids. | Long chain of repeating units known as nucleotide. |
| Each nucleotide consists of a 5 carbon _________ bonded to a _________ group and a _________ __________. | Sugar, phosphate, nitrogenous base. |
| Nitrogenous base. | Organic base that contains nitrogen. |
| What are the nitrogenous base pairing rules for DNA? | Adenine to thymine, cytosine to guanine. |
| Shape of DNA? | Double helix (twisted ladder) and double stranded. |
| Function of DNA. | Directs and controls the development and activities of all cells in an organism. |
| Where is DNA found and created? | The nucleus. |
| What attaches nitrogenous bases to one another? | Weak hydrogen bonds. |
| RNA shape. | Single stranded. |
| What sugar does RNA contain? | Ribose. |
| Base pairs of RNA. | Adenine to uracil, guanine to cytosine. |
| Function of RNA. | Assists in protein synthesis. |
| Three types of RNA. | mRNA, tRNA, rRNA. |
| DNA's sugar. | Deoxyribose. |