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BIO 121 FINAL EXAM LATEST 2025 ACTUAL EXAM TEST BANK 300 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS) |ALREADY GRADED A+

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What are three functions of proteins? - ...ANSWER...Movement (work horses of life) Oxygen carrying Structure What are the main decomposers in an ecosystem? - ...ANSWER...Fungi & bacteria There is mercury in seafood. The seafood having the highest concentrations of mercury are where in the food chain? - ...ANSWER...At the top of the food chain What is one lesson from the pyramid of numbers? - ...ANSWER...Eating grain-fed beef is an inefficient means of obtaining the energy trapped by photosynthesis What is a population? - ...ANSWER...The members of one species that inhabit a particular area at a given time How does carbon in the air get into organic molecules? - ...ANSWER...Photosynthesis If the CO2 concentration of the atmosphere was 300 parts per million (ppm) in 1950 and will be 400 ppm in the year 2020, what percent increase will have taken place? And what is the formula to determine this? - ...ANSWER...Formula: difference/original x 100 100/300 x 100 = 33 What are two ways that carbon is released into the atmosphere? - ...ANSWER. 1. Cellular respiration 2. Burning of wood & fossil fuels What is noteworthy or interesting about the nitrogen cycle? - ...ANSWER...The nitrogen cycle begins with living organisms and their organic states & decomposers break those organisms down once they are dead to turn the nitrogen in them to an inorganic state. Finally, plants take up that nitrogen & return it to an organic state Morphine can dock on a brain receptor normally serving as a dock for a natural brain chemical named endorphin. This best demonstrates what? - ...ANSWER...That shape determines how biological molecules recognize and respond to one another What is one calorie? - ...ANSWER...The amount of heat energy necessary to raise the temperature of 1 gram of liquid water by 1 degree Celsius Name a chemical functional group - ...ANSWER...Hydroxyl OH Amino NH3 What are the four major groups of large organic molecules? - ...ANSWER...Carbohydrates Lipids Proteins Nucleic Acids How many molecules of water are needed to completely breakdown a polymer that is 8 monomers long? - ...ANSWER...One molecule less than there are monomers. In this case, 7 molecules Name a disaccharide or name a monosaccharide - ...ANSWER...Disaccharide: lactose- milk sugar Name the storage polysaccharide of pla

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