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Question: 1 since the number of determines the chemical element sodium...

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1. Since the number of determines the chemical element, sodium (Na) would no longer be sodium (Na) if you changed the number of this subatomic particle. a) Protons b) Neutrons c) Electrons 2. In the case of the salt NaCl, chloride (Cl) gains an electron that is donated by sodium (Na). This is an example of a) an ionic bond b) a hydrogen bond c) a covalent bond d) a polar bond 3. T he lower the pH of a solution, the a) the higher the concentration of hydrogen ions b) less toxic the solution. c) more basic the solution. greater the number of oxygen atoms 4. Which one of these is INCORRECTLY matched with its description a) Cholesterol a type of lipid, which can be used to make steroid hormones like testosterone and estrogen b) Starch a carbohydrate that plants use to store glucose c) Saturated fat- less healthy fat with all single bonds in the fatty acid tail and therefore tend to be solid at room temperature d) Polysaccharide long chain of amino acids that forms proteins e) Phospholipid - lipid with long hydrophobic tails and hydrophilic heads containing a phosphate group 5. Energy is transferred from ATP to other molecules by. a) Photosynthesis b) transferring the adenosine of ATP to the other molecule c) substrate level activation d) activating the allosteric site on the molecule e) breaking off a high energy phosphate group 6. The region of an enzyme to which a substrate binds is called the site a) Denatured b) Conformational c) Substrate d) Enzymatic e) Active

7. The pancreas plays a role in a) producing the acid found in the stomach b) releasing bile into the digestive tract c) peristalsis and transport of chime d) secreting digestive enzymes and bicarbonate into the small intestine e) mechanical digestion of fats 8. These villi, which help to increase surface area, help the absorb nutrients. a) large intestine b) liver c) stomach d) pancreas e) small intestine 9. In lecture, we discussed a study that followed up on the contestants of the extreme dieting show The Biggest Loser. Which of the following was true about the 14 contestants that participated in the study 6 years after the show? a) 13 out of the 14 contestants had regained weight b) The majority of the contestants weighed the same or less than their final weight on the show c) All of the contestants had a faster metabolism than normal. d) Half of the contestants had lost additional weight

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