1. A characteristic of the plasma membrane that allows some molecules to pass through, while others are not is a) selective permeability b) non-permeability c) permeable d) polar 2. The definition of metabolism a) the breakdown of large molecules b) transforming matter and energy; the total sum of an organism's chemical reactions c) the building up of larger molecules from smaller ones d) breaking down what we eat 3. This kind of pathway yields energy by oxidizing organic fuels a) anabolic pathways b) catabolic pathways c) reverse pathways d) substrate phosphorylation 4. Protein molecules, dispersed throughout the cell membrane that allows water to enter and exit the cell every second are. a) enzymes b) protein receptors c) aquaporins d) gated channels 5. Metabolism is an emergent property of life that arises from the orderly interactions between molecules controlled by a) vitamins b) minerals c) enzymes d) ATP 6. The characteristic of the plasma membrane that describes it as a combination of molecules is a) bipolar molecule model b) fluid mosaic model c) electro-negative model d) lipid model 7. This reaction harvests chemical energy by oxidizing glucose to pyruvate a) Citric acid cycle b) Electron transport chain c) Glycolysis d) Substrate phosphorylation 8. When metabolic pathways release energy by breaking down complex molecules into smaller simpler compounds it is known as a) catabolism b) anabolism c) metabolism d) basal metabolic rate 9. These speed up and control the systematic and organized pathways to the production of energy a) enzymes b) carbohydrates c) acids d) buffers 10. The most abundant molecule that makes up the plasma membrane is a) proteins b) cholesterol c) phospholipids d) carbohydrates 11. When a reaction consumes energy to build complicated molecules from simpler ones, this is known as a) catabolism b) anabolism c) metabolism d) basal metabolic rate 12. Phospholipid molecules are unique because they exhibit both hydrophilic and hydrophobic
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