SATA BIO311C Exam 2 Latest Updated

Panspermia - ANSWER-Explores whether life came from another planet or not, based on the proposal that meteors from space came with either simple living organisms or the complex molecules needed to start life on earth. Abiogenises - ANSWER-Life originated spontaneously from simple atoms and molecules combining under high temperature in the presence of water, lightning, limited availability of oxygen, and other conditions of early earth. Reducing Environment - ANSWER-Favor the adding of electrons and may have helped to form complex molecules from simple molecules. The energy to form complex molecules may have been provided by high temperatures and UV radiation. Miller and Urey Experiment - ANSWER-Hydrogen, water, methane, and ammonia were added with high power electrodes in order to simulate lightning to provide energy for further reactions. After cooling the reaction products, they noticed that simple organic molecules including urea, organic acids, simple sugars, and amino acids had been formed. Substratum - ANSWER-In addition to water and a reducing environment, the polymerization of monomers may need a __________ or a solid base for attachment. Protobionts - ANSWER-Simple monomers and macromolecules can aggregate to form simple structures called __________, which were essential for cells to evolve and to keep internal conditions separate from the surrounding environment. RNA - ANSWER-What molecule can be used to store information and also to catalyze the synthesis of other molecules? Domains - ANSWER-Eukara, Prokarya, Archaea Kingdoms - ANSWER-Protista, Fungi, Plantae, Animalia Prokaryotic and Eukaryotic - ANSWER-The two types of cells are ___ (without nucleus) and ____ (with nucleus). Magnification - ANSWER-How big something is in microscopy. Resolution - ANSWER-How clear something is in microscopy. AKA resolving power, it sets the practical limits of magnification. Light Microscope - ANSWER-Light is focused on the specimen through a condenser lens, and light passing through the specimen is refracted through the objective lens and