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biol 1500 exam 2 UPDATED ACTUAL Exam Questions and CORRECT Answers

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  • Biology 1500
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  • Biology 1500

biol 1500 exam 2 UPDATED ACTUAL Exam Questions and CORRECT Answers basic features of a cell - CORRECT ANSWER - plasm membrane; cytosol; chromosomes; ribosomes describe prokaryotic cells - CORRECT ANSWER - no nucleus; DNA in nucleoid; no membrane-bound organelles describe eukaryotic cells - ...

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  • February 19, 2025
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Biology 1500
  • Biology 1500
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MGRADES
biol 1500 exam 2 UPDATED ACTUAL
Exam Questions and CORRECT Answers
basic features of a cell - CORRECT ANSWER - plasm membrane; cytosol; chromosomes;
ribosomes


describe prokaryotic cells - CORRECT ANSWER - no nucleus; DNA in nucleoid; no
membrane-bound organelles


describe eukaryotic cells - CORRECT ANSWER - DNA in nucleus; membrane-bound
organelles; cytoplasm in region between plasma and nucleus


describe plasma membrane - CORRECT ANSWER - selective barrier that allows
sufficient passage of oxygen, nutrients, and wastes


describe nuclear envelope - CORRECT ANSWER - encloses nucleus; double membraned



ribosomes - CORRECT ANSWER - build proteins either in cytosol or outside of ER



endomembrane system - CORRECT ANSWER - consists of nuclear envelope, ER, golgi,
lysosomes, vacuoles, and plasma membrane


Smooth Endoplasmic Reticulum (ER) - CORRECT ANSWER - detoxifies drugs and
poisons; synthesizes lipids; stores calcium ions


Rough Endoplasmic Reticulum - CORRECT ANSWER - studded with ribosomes that
secrete glycoproteins; distribute transport vesicles


Golgi apparatus - CORRECT ANSWER - modifies products of ER; sorts and packages
materiels

, Lysosomes - CORRECT ANSWER - digest macromolecules; work best in acidic
environments


What is phagocytosis? - CORRECT ANSWER - Cell eating



What are vacuoles? - CORRECT ANSWER - large vesicles derived from the ER and
Golgi apparatus


What are food vacuoles? - CORRECT ANSWER - associated with food digestion



what are contractile vacuoles? - CORRECT ANSWER - found in many freshwater protists,
pump excess water out of cells


what are central vacuoles? - CORRECT ANSWER - found in many mature plant cells,
hold organic compounds and water


Mitochondria - CORRECT ANSWER - sites of cellular respiration which generates ATP



what led to the endosymbiont theory? - CORRECT ANSWER - mitochondria and
chloroplasts similarities with bacteria


What is the endosymbiotic theory? - CORRECT ANSWER - early ancestor of eukaryotes
engulfed an oxygen-using non-photosynthetic prokaryotic cells


What are thylakoids? - CORRECT ANSWER - saclike photosynthetic membranes found
in chloroplasts


what is stroma - CORRECT ANSWER - fluid inside chloroplast

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