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exam II
| Question | Answer |
|---|---|
| what is dehydration synthesis | the joining of monomers through loss of water |
| what is hydrolysis | breaks monomers by consuming water |
| what is the main function of carbohydrates | energy and structure |
| what links two monosacxharides | glycodic linkage |
| a vs b glucose | cannot be broken down the same way |
| what is the primary structure of proteins | amino acid sequence linked by polypeptide chains |
| what is the secondary structure of proteins | a-helix and B sheets |
| what is the tertiary structure of proteins? | R-group interactions |
| what is the quaternary structure of proteins | multiple polypeptides |
| what increases fluidity of membranes | saturation |
| what channel is used for water | aquaporins |
| what are the types of diffusion | facilitated (requires protein) and simple (small non-polar molecules) |
| what do organelles only eukaryotes have | golgi, ER, nucleus, chloroplasts, mitochondria, lysosomes |
| what do both prokaryotes and eukaryotes have | cytoplasm, DNA, ribosomes, and plasma membrane |
| what is a clycoprotein | used for cell-to-cell recognition |
| what is catabolism | breaking down, increases energy, spontaneous, exergonic, delta G negative |
| what is anabolism | builds, decreases entropy, non-spontaneous, endogonic, delta G positive |
| what determines rate | activation energy |
| what determines spontanateity | delta G |
| when are all carbons used up | in citric acid cycle |
| where does substrate bind to substrate | active site |
| where does glycolysis occur | cytoplasm |
| when an electron goes to a more electronegative atom energy is... | released |
| what is the first law of thermodynamics | energy cannot be created or destroyed |
| what is the second law of thermodynamics | every energy transfer increases entropy |
| what is entropy | a measure of molecular disorder/randomness |
| what's the difference between DNA and RNA | RNA is used for protein synthesis, DNA is used for hereditary material |
| what are phosphoplids used for | plasma membrane |
| phospholids structure | hydrophillic head, two hydrophobic tails |
Created by:
jlaster2516