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Exam 1 WIS2552 Questions And Answers
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Exam 1 WIS2552 Questions And Answers Zoogeographic8regions8are8based8on_____8-8correct8answer...Evolutionary8History Bower8Birds8are8found8in_____8-8correct8answer...Australia The8main8characteristic8of8deserts8is8high8temperatures8-8correct8answer...false Are8birds8of8Taiga8like8habita...

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  • September 11, 2024
  • 14
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • exam 1 wis2552 questions and answers zoogeographi

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UAB Biology 123 Exam 1 Study Guide
Questions With 100%Verified Answers
Correct ordering of biological organization? - correct answer...✔✔1. Biosphere
g g g g g g g g


2. Ecosystems
g


3. Communities
g


4. Populations
g


5. Organisms
g


6. Organs
g


7. Tissues
g


8. Cells
g


9. Organelles
g


10. Moleculesg




Polar - correct answer...✔✔
g g g


distribution of electrons between the covalently bonded atoms is not even
g g g g g g g g g g




Three tenets of cell theory - correct answer...✔✔
g g g g g g g


1) All living organisms composed of one or more cells
g g g g g g g g g


2)Cell is the basic unit or structure and organization in organisms
g g g g g g g g g g


3)Cells come from pre-existing cells g g g g




covalent bond - correct answer...✔✔ g g g g


a chemical bond that involves the sharing of electron pairs between atoms
g g g g g g g g g g g




hydrogen bond - correct answer...✔✔ g g g g


weak chemical bond formed when the slightly positive hydrogen atom of a polar covalent b
g g g g g g g g g g g g g g


ond in one molecule is attracted to the slightly negative atom of a polar covalent bond in an
g g g g g g g g g g g g g g g g g


other molecule. g




ionic bond - correct answer...✔✔
g g g g


transfer of electrons, A chemical bond resulting from the attraction between oppositely cha
g g g g g g g g g g g g


rged ions. g




van der Waals forces - correct answer...✔✔
g g g g g g


the relatively weak attractive forces that are operative between neutral atoms and molecul
g g g g g g g g g g g g


es and that arise because of the electric polarization induced in each of the particles
g g g g g g g g g g g g g g




A covalent bond is likely to be polar when - correct answer...✔✔
g g g g g g g g g g g


one of the atoms sharing electrons is much more electronegative than the other atom
g g g g g g g g g g g g g




DNA nucleotide - correct answer...✔✔
g g g g


Deoxyribose Sugar, Bases GCAT, and Phosphate Group g g g g g g

, RNA nucleotide - correct answer...✔✔
g g g g


Ribose Sugar, Bases GCAU, and Phosphate Group
g g g g g g




Triglycerides - correct answer...✔✔an energy- g g g g


rich compound made up of a single molecule of glycerol and three molecules of fatty acid.
g g g g g g g g g g g g g g g




Phospholipids - correct answer...✔✔ g g g


a lipid consisting of a glycerol bound to two fatty acids and a phosphate group.
g g g g g g g g g g g g g g




Which element makes the greatest percentage of the human body mass? -
g g g g g g g g g g g


gcorrect answer...✔✔Ca- 1.5% g g


Fe- <.05 g


I- <.05
g


O- 65% g


C- 18.5%g




31^P compared to 32^P, what is the difference? - correct answer...✔✔One more neuron
g g g g g g g g g g g g




The particle negative charge in a molecule of water occurs because - correct answer...✔✔
g g g g g g g g g g g g g


a hydrogen bond
g g




Water molecules are able to form hydrogen bonds with - correct answer...✔✔
g g g g g g g g g g g


compounds that have polar covalent bonds. g g g g g




What is the pH of a solution with a hydroxyl ion [OH-] concentration of 1.0 x 10^-12 M? -
g g g g g g g g g g g g g g g g g g


gcorrect answer...✔✔[H+] x 1 x 10^-12 =1 x 10^-14
g g g g g g g g


[H+]= 1 x 10^-2 g g g


-log( 1 x 10^-2) g g g


=2 g




If the cytoplasm of a cell is at pH 7, and the mitochondrial matrix is at pH 8, this means -
g g g g g g g g g g g g g g g g g g g g


gcorrect answer...✔✔ g


the concentration of H+ ions is tenfold higher in the cytoplasm than in the mitochondrial ma
g g g g g g g g g g g g g g g


trix.

12 and 13 on practice exam
g g g g g


What functional group(s) shown above is (are) present in all amino acids?
g g g g g g g g g g g




Which of the groups shown above is a functional group that helps stabilize proteins by form
g g g g g g g g g g g g g g g


ing covalent cross-links within or between protein molecule - correct answer...✔✔C and D
g g g g g g g g g g g g




E

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