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- Name and explain four properties of water that support life.EVOLUTION CONNECTION This chapter explains how theemergent properties of water contribute to the suitabilityof the environment for life. Until fairly recently, scientistsassumed that other physical requirements for life includeda moderate range of temperature, pH, atmospheric pressure,and salinity, as well as low levels of toxic chemicals. Thatview has changed with the discovery of organisms knownas extremophiles, which have been found flourishing inhot, acidic sulfur springs, around hydrothermal ventsdeep in the ocean, and in soils with high levels of toxicmetals. Why would astrobiologists be interested in studyingextremophiles? What does the existence of life in suchextreme environments say about the possibility of life onother planets?Write the name of the four emergent properties of water that are important for life?
- Consider the following statement. “To produceone molecule of each possible kind of polypeptide chain,300 amino acids in length, would require more atoms thanexist in the universe.” Given the size of the universe, do yousuppose this statement could possibly be correct? Sincecounting atoms is a tricky business, consider the problemfrom the standpoint of mass. The mass of the observableuniverse is estimated to be about 1080 grams, give or takean order of magnitude or so. Assuming that the averagemass of an amino acid is 110 daltons, what would be themass of one molecule of each possible kind of polypeptidechain 300 amino acids in length? Is this greater than themass of the universe?Describe the levels of organization of matter in the universe with at least 2 specific examples for each level.Several emergent properties of water contribute to the suitability of the environment for life. Choose two properties of water and describe how these properties arise from the structure of water molecules. Next choose any organism, and give specific examples of how the properties of water you described contribute to the survival of the given organism.
- Organic molecules consist mainly of _______ atoms. a. carbon c. carbon and hydrogen b. carbon and oxygen d. carbon and nitrogenالوقت المتبقي 1:24:25 إختر واحدا: A frozen lake in winter with fish swimming below the surface is possible because of which property of :water Surface tension .a Adhesion .b O Polarity .c Low molecular weight .d O Cohesion .e O Biologists discover a new organism. Upon viewing the organism they discover it is unicellular, without a nucleus and has a cell wall. To which kingdom does the new creature belongBiology The Dynamics of Life acids: basic building blocks of protein molecules. acid: a nucleic acid; the master copy of an organism's information code that 14. the instructions used to form all of an organism's enzymes and structural proteins. 6 large molecule formed when many smaller molecules bond together. bond: chemical bond formed by the attractive forces between two ions of og charge. measure of how acidic or basic a solution is; the scale ranges from below 0 to abe large organic compounds made mostly of carbon and hydrogen with a small ama oxygen. organic compound used by cells to store and release energy; composed of car and oxygen. group of atoms held together by covalent bonds; has no overall charge. acid: complex biomolecules, such as RNA and DNA, that store cellula cells in the form of a code. all of the chemical reactions that occur within an organism. acid: a nucleic acid that forms a copy of DNA for use in making prote type of protein found in all living things that…
- Which of the following are scientific statements? Choose all that apply. A Liquid water always has a higher density than frozen water (ice ). B Matter is filled with undetectable particles CM&M candies contain no sugar D We will never know what is happening inside a black hole E All dogs go to heaven.Discuss the biological significance of water to living organisms.Define the following terms:a. saponificationb. wax esterc. waxd. phospholipide. polar head group
