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CH3
Biology 1301
| Question | Answer |
|---|---|
| Organic molecules are based on what element? | Carbon |
| Hydroxyl ( -OH), carbonyl ( >C=O), carboxyl (-COOH), amino (-NH2), phosphate (-OPO3 2-) and sulfhydryl (-SH) groups participate in biological reactions and are therefore called ________________. | Functional Groups |
| Reactions that use the equivalent of a water molecule to break a molecule into smaller subunits are called ____ reactions. | hydrolysis |
| Table sugar, sucrose, is a disaccharide composed of which carbohydrates? | Glucose and Fructose |
| Isomers are two or more molecules with ____ chemical formula and ____ molecular structures. | the same; different |
| When molecules are referred to as D- or L- (for example D-forms of sugars and L-forms of amino acids), the D- and L- designations refer to the specific ____. | enantiomer |
| Amylose, Glycogen, Cellulose and Chitin are all forms of _____________. | carbohydrates |
| What organic molecules have a chemical formula that is (or is very nearly) a multiple of (CH2O)? | carbohydrates |
| Lipids that are liquid at room temperature: | if polyunsatured, contain several double bonds in their fatty acid chains. |
| Lipids that store energy are composed of | a glycerol backbone and three fatty acid chains |
| The sex hormones of many animals are a specific type of lipid molecule known as | steroids |
| In a phospholipid, glycerol is bound to | two fatty acids chains and one phosphate group |
| The term "secondary structure" refers to a protein's | structure that results from local interactions between different amino acids in the chain |
| Proteins are composed of amino acids that are composed of a central carbon with attached | amino group, carboxyl group, hydrogen atom and side group |
| Which of the following types of molecules are the most diverse in terms of structure and types of roles in cells? | proteins |
| Which of the following is NOT a major function of proteins in living organisms? | storing genetic information |
| RNA differs from DNA because | RNA may contain the pyrimidine uracil and DNA does not |
| In the DNA double helix structure, the nucleotide base thymine pairs with | adenine |
| A large molecule whose subunits consist of a sugar, a phosphate group, and a nitrogen-containing base is a | nucleic acid |
| The two strands of a DNA double helix are held to each other by ____ bonds between nitrogenous bases | hydrogen |
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TejasRanger29
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