DAT Biology (Chapter 1 - Chemistry) Flashcards
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2596905351 | Water is the universal ______ | solvent | 0 | |
2596906724 | Water has a high _____ | heat capacity | 1 | |
2596911216 | Heat capacity is ______ | the degreee to which a substance changes temperature in response to a gain or loss of heat | 2 | |
2596915277 | Water _____ when it freezes | Expands | 3 | |
2596924812 | _____ is the attraction between like substances | Cohesion | 4 | |
2596929083 | The strong cohesion of water produces _____ | high surface tension | 5 | |
2596932630 | _____ is the attraction between unlike substances | adhesion | 6 | |
2596936906 | Adhesion is responsible for what biological phenomenon? | Capillary action | 7 | |
2596941830 | Carbon has a valence of ____ | 4 | 8 | |
2596960528 | Glucose comes in two forms ... | Alpha and beta | ![]() | 9 |
2596963729 | Fructose is different from glucose in that ____ | It has a 5 membered ring with two CH2's coming off | ![]() | 10 |
2596973866 | Sugar bonds are called _____ | glycosidic linkages | 11 | |
2596978779 | Glucose + fructose = | sucrose | 12 | |
2596978780 | glucose + galactose = | lactose | 13 | |
2596979696 | glucose + glucose = | maltose | 14 | |
2596980915 | Carbohydrates are linked via ______ | dehydration condensation | 15 | |
2596984841 | Starch contains what type of glucose ? F(x)? | alpha / energy storage in plants | ![]() | 16 |
2596988719 | Glyocgen is _____ . f(x)? | branched alpha glucose / energy storage in animals | 17 | |
2597000219 | Cellulose contains what type of glucose? F(x)? | Beta / structura molecule in plant cell walls | ![]() | 18 |
2597010825 | _____ bonds are the only type of glycosidic linkage that can be broken by humans | alpha | 19 | |
2597012633 | _____ bonds must be broken down by specialized organisms | beta | 20 | |
2597018641 | triglycerides are made up of _____ | glycerol and 3 fatty acids | 21 | |
2597024063 | Saturated / monounsaturated / polyunsaturated | no DBs / 1 DB / many DBs | 22 | |
2597029517 | A phospholipid is said to be _______ | amphipathic | 23 | |
2597036848 | Structural protein examples (3) | keratin, collagen, silk | 24 | |
2597040570 | Storage protein examples (3) | casein, ovalbumin, zein | 25 | |
2597043964 | Transport protein examples (2) | Cell membrane proteins, hemoglobin | 26 | |
2597045578 | Defensive protein examples (1) | Antibodies | 27 | |
2597046933 | Enzyme examples (1) | Phosphodiesterase (throwback *****) | 28 | |
2597050100 | Proteins are polymers of _____ | amino acids | 29 | |
2597051779 | Bonds between proteins are called ____ | peptide bonds | 30 | |
2597057474 | Amino acid structure | Amino group, carboxyl group, central carbon with R group | ![]() | 31 |
2597076713 | Primary structure of a protein | order of amino acids held together by covalent bonds | 32 | |
2597077466 | Secondary structure of a protein | 3D shape from hydrogen bonding | 33 | |
2597082030 | Two types of secondary structure | alpha helix, beta pleated sheets | 34 | |
2597085520 | Tertiary structure of a protein | noncovalent interactions stabilize the 3D shape by max favorable interactions and minimizing unfavorable interactions | 35 | |
2597093143 | What causes globins to form? | hydrophobic effect, most hydrophobic R groups move towards the center of the molecule | 36 | |
2597115553 | Disulfide bonds are _____ bonds that form between two ____ amino acids | covalent, cysteine | 37 | |
2597128148 | Quaternary structure of a protein | aggregates of tertiary proteins that come together | 38 | |
2597133157 | Nucleic acids consist of ______ | a nitrogenous base, pentose sugar (ribose), phosphate | 39 | |
2597139865 | Purines are ____ | double ringed - adenine and guanine | ![]() | 40 |
2597140816 | pyrimidines are ________ | single ringed - thymine and cytosine | ![]() | 41 |
2597155784 | DNA is _____ | antiparallel | 42 | |
2597155785 | DNA runs from _____ | 5' - 3' | 43 | |
2597159353 | DNA contains ___ while RNA contains _____(2) | Deoxyribose and thymine / Ribose and uracil | 44 | |
2597163979 | RNA is usually _____ | single stranded | 45 | |
2597168386 | Catabolism is _____ | breakdown of substances | 46 | |
2597169531 | Anabolism is _____ | biosynthesis | 47 | |
2597173281 | Energy needed for biological reaction to proceed | Activation energy | 48 | |
2597188811 | Enzymes are _____ specific | Substrate | 49 | |
2597194059 | Enzymes catalyze reactions in ______ | both directions | 50 | |
2597216723 | Enzymes are affected by ____ causing denaturation | temperature and pH | 51 | |
2597219147 | Induced fit model | enzyme binds to substrate and the substrate changes the conformational equilibrium to fit said enzyme | 52 | |
2597235001 | Cofactors | non-protein molecules that assist enzymes | 53 | |
2597237956 | Holoenzyme | Enzyme with a cofactor attached | 54 | |
2597241133 | ______ are organic cofactors. f(x)? | Coenzymes / donate or accept electrons | 55 | |
2597244455 | Inorganic cofactor examples ____ | Iron and Magnesium | 56 | |
2597246855 | ATP is a _____ assembled by _____ | Energy molecule, phosphorylation | 57 | |
2597276216 | Allosteric effectors bind to the ____ of an enzyme | active site | 58 | |
2597277739 | Competitive inhibition ____ | inhibitor binds to active site | 59 | |
2597286864 | Noncompetitive inhibitors bind to _____ | allosteric site | 60 | |
2597288692 | Cooperativity refers to _______ | an enzyme becoming more receptive to substrate after one molecule binds | 61 |