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Exam (elaborations)

Bio 189 Exam 1 Questions With 100% Correct Answers

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BIO 189 EXAM 1 QUESTIONS WITH 100% CORRECT ANSWERS

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how does electronegativity relate to the formation of ionic and covalent bonds


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electronegativity expresses how badly an atom wants or attracts EXTRA
electrons, therefor forming bonds




organism


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An individual living thing




General structure of atoms

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- electrons: rotating around the nucleus, negative charge
-protons: in the nucleus, positive charge
- neutrons: in the nucleus, natural charge




epidemiological studies


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advantages: comparatively inexpensive
potential to study harmful factors
statistical power:
- sample number one time




give an example of emergent properties from everyday life.


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brain cell -> interacting brain cells -> brain -> memory




standardized variable


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any factor held constant for all subjects in an experiment

,which organelles are associated with the job of cellular digestion?


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lysosomes and peroxisomes




cellular components that are found in all cells


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- chromosomes
- cytoplasm, cytosol
- plasma membrane
- ribosomes




Theory


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an explanation of a natural phenomenon supported by many observations
and experiments over time




Ribosomes


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- translate mRNA to make protein
-composed of protein and ribosomal RNA

, - assembled in the nucleus




diagram the components involved in animal cell connections


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page 64




ecosystem


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living and nonliving things in an area




Relationship between entropy and chemical reactions (The second law of
thermodynamics)


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entropy increases when larger molecules are broke down into many
simpler molecules
- 2nd law: the release of energy will result in a greater amount of disorder
entropy decreases when many simpler molecules are organized into a
more complex molecule




describe the role of ATP in short term energy storage

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