Exam 1 Review

Exam 1 Review - Lecture concept review and practice...

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Lecture concept review and practice questions leading up to exam 1 Concept Review: This is my distillation of the material using your lecture outline, our discussion from lecture, and text Concept : Biology is about living individuals and the interactions of living systems. All living things and living systems have similar basic needs and characteristics . Hypotheses, theories, characteristics of living things/systems. (List Here) Geographic exploration of the 19th Century. . . great age of expansion of knowledge of biodiversity. Concept : Biologists need a way to classify and name living things in order to study and share information about life on Earth .Systematics > evolutionary/genetic relationships Taxonomy > groups and names Groups of living things can be related through their genetic similarities. Organelles such as mitochondria and chloroplasts are very interesting to study due to their own genetics and inheritance, and the dependence that other cells/organisms have on them.Taxonomic hierarchyLinnaeus and the binomial system (Classify any organism of your choice.)
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Concept : Biologists rely on several fields of biology in order to understand the world around us. Populations of very different types of living things may share genes due to their environment and the success that those genes have in several "branches" of the "tree of life". " Populations of different types of living things may share genes due to their environment and the success that those genes have in several "branches" of the "tree of life". Concept : Atoms are the basic units of chemicals . Redox reactions - oxidation and reduction. .. loss and gain of energy Chemical bonds - In chemical reactions elements bond by either donating electrons (ionic bond), sharing electrons (covalent bond), or by mutual attraction of opposite polarity (hydrogen bond). In reactions, the loosing of electrons (loss of energy) is called oxidation and the gaining of electrons (gain in energy) is called reduction. Oxidation-Reduction reactions are paired (one happens with the other) and are called Redox . When an electron absorbs energy, it moves to higher energy levels, farther from an atoms nucleus (such as when an atom absorbs light). When an electron releases energy, it falls to a lower energy level, closer to the nucleus (such as when an atom looses heat energy, or cools).
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Concept : Living things need nutrient molecules to sustain cell structure and metabolic functions. Several types (elements) of atoms make up the bulk of living things. All life on Earth requires a "short list" of elements called Macroelements. These are found in higher proportion in living cells and tissues than other elements. An easy way to remember these is to use the tool:
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This note was uploaded on 11/14/2010 for the course BIO 1105 at Virginia Tech.

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Exam 1 Review - Lecture concept review and practice...

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