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BIO 101 Exam 1
Study Guide
| Question | Answer |
|---|---|
| Characteristics of Life | • Order • Regulation • Growth and Development • Energy Processing • Response to the Environment • Reproduction • Evolutionary Adaptation |
| Two basic cell types | Prokaryotic and Eukaryotic Cells |
| 4. Understand the basic steps of the scientific method and the proper design of an experiment. Including the statement of the hypothesis and use of controls. | Steps of the Scientific Method: • Ask a Question • Do background research • Construct a Hypothesis (“If (I do this) then (this) will happen.”) • Test your Hypothesis by doing an experiment • Analyze your data and draw a conclusion • Comm |
| Energy | The capacity to perform work or to rearrange matter. |
| Matter | Anything that occupies space and has mass |
| Producers | An organism that makes organic food molecules from CO2, H2O, and other inorganic raw materials: a plant, alga or autotrophic prokaryote. |
| Consumers/ decomposers | An organism that obtains its food by eating plants or by eating animals that have eaten plants / Prokaryotes and fungi that secret enzymes that digest nutrients from organic material and convert them into inorganic forms. |
| Hypothesis | A tentative explanation a scientist proposes for a specific phenomenon that has been observed. |
| Element | Chemicals such as Hydrogen (H), Iron (Fe), Sodium (Na), Carbon (C), Nitrogen (N), or Oxygen (O), whose distinctly different atoms serve as the basic building blocks of all matter. There are 92 naturally occurring elements. Another 15 have been made in lab |
| Compound | Combination of two or more different chemical elements held together by chemical bonds. |
| Trace elements | an element in a sample that has an average concentration of less than 100 parts per million measured in atomic count, or less than 100 micrograms per gram. |
| Isotope | A variation of an element that has the same atomic number of protons but a different weight because of the number of neutrons. Various isotopes of the same element may have different radioactive behaviors, some are highly unstable |
| Ion | An electrically charged atom or group of atoms |
| Isomer | chemical compound which has the same number and kind of atoms as another but differs in structural arrangement |
| Proton | elementary particle in the nucleus of all atoms, elementary particle with a positive electrical charge |
| Neutron | elementary particle in atomic nuclei which has no electrical charge |
| Electron | negatively charged particle which is a fundamental component of matter and exists independently or outside the nucleus of an atom |
| Anion | A negatively charged ion. |
| Cation | A positively charged ion. |
| Understand how covalent bonds form and the difference between polar covalent and non-polar covalent: | Covalent bonding occurs when two (or more) elements share electrons. Covalent bonding occurs because the atoms in the compound have a similar tendency for electrons (generally to gain electrons). / A polar bond is formed when electrons are unequally share |
| What is a H bond and know an example | Hydrogen Bond the attractive interaction of a hydrogen atom with an electronegative atom, such as nitrogen, oxygen or fluorine, that comes from another molecule or chemical group. The hydrogen must be covalently bonded to another electronegative atom to c |
| What are Van der Waals interactions? | named after Dutch scientist Johannes Diderik van der Waals, is the attractive or repulsive forces between molecules (or between parts of the same molecule) other than those due to covalent bonds or to the electrostatic interaction of ions with one another |
| What is a chemical reaction? | Interaction between chemicals in which there is a change in the chemical composition of the elements or compounds involved. |
| Reactants | person or thing which reacts, person or thing which responds to a stimulus; (Chemistry) reactant, chemical substance that is involved and goes through change during a chemical reaction |
| Products | something that is produced, result of manufacturing; goods, merchandise; (Mathematics) result obtained by multiplying quantities together |
Created by:
sbauer06
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