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Bio 1201 Exam 2 – Licata Questions and Answers 100% Pass
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Bio 1201 Exam 2 – Licata Questions and Answers 100% Pass What are 2 parts of cell theory? - ANSWER -- all organisms are made of cells -simplest collection of matter that can be alive where are cells in the biological size range? - ANSWER -about the middle what is microscopy? - ANSWER -how yo...

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  • December 17, 2024
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  • 2024/2025
  • Exam (elaborations)
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  • bio 1201 exam 2 licata questions and answers 100

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Bio 1201 Exam 2 – Licata Questions
and Answers 100% Pass

What are 2 parts of cell theory? - ANSWER ✔✔-- all organisms are made of cells


-simplest collection of matter that can be alive


where are cells in the biological size range? - ANSWER ✔✔-about the middle


what is microscopy? - ANSWER ✔✔-how you see things


describe scanning electron microscopes - ANSWER ✔✔--focus electrons onto the surface of the specimen,

producing 2-D pictures


-used for smaller than cellular looking


describe transmission electron microscopes - ANSWER ✔✔--focus beam of electrons through a specimen,

producing 2-D pictures


-used for smaller than cellular looking


what are both TEM and SEM microscopes used for? - ANSWER ✔✔-discerning cellular anatomy


what is cellular fractionation, and a method of cellular fractionation? - ANSWER ✔✔--takes cells apart

and separates the major organelles from one another


-centrifuges: fractionate cells into their component parts; harder you spin it, the smaller organelles you

get


-used for discerning cellular anatomy




Created by ©EmilyCharlene 2025. All rights reserved.

,2|Page


what are the basic features of both prokaryotic and eukaryotic cells? - ANSWER ✔✔--plasma membrane


-semifluid substance called cytosol


-chromosomes that carry genes


-ribosomes that make proteins


characteristics of a prokaryotic cell - ANSWER ✔✔--no defined nucleus


-DNA in unbound nucleoid


-no membrane bound organelles


-100x smaller than eukaryotic cells


-flagella for movement (a lot, not all)


-a lot have cell walls


characteristics of a eukaryotic cell - ANSWER ✔✔--DNA in membrane-bound nucleus


-membrane-bound organelles


-endomembrane system (inner membrane)


-larger than prokaryotic cells


-plant and animal cells have. many shared organelles


What do plant cells have that animal cells don't? - ANSWER ✔✔-cellulose, cell wall, chloroplasts, central

vacuole


what is in the nucleus? - ANSWER ✔✔-DNA, nuclear envelope, nuclear membrane, nuclear pores,

chromatin/chromosomes, nucleolis, ribosomes, lamina


What is the nuclear envelope? - ANSWER ✔✔-it encloses the nucleus




Created by ©EmilyCharlene 2025. All rights reserved.

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what is the nuclear membrane? - ANSWER ✔✔-a lipid bilayer


what are nuclear pores - ANSWER ✔✔-they regulate the entry and exit of molecules


what is the lamina? - ANSWER ✔✔--maintains shape of nucleus


-composed of protein


-is a support structure


what kind of membrane do organelles in eukaryotic cells have? - ANSWER ✔✔-double membrane


what is chromatin? - ANSWER ✔✔--where the DNA is


-wraps around proteins, which forms chromatin structures


what do chromatin structures form as they condense when preparing for cell division? - ANSWER ✔✔-

chromosomes


what is the nucleolis? - ANSWER ✔✔--makes ribosomal DNA (rRNA)


what is a chromosome? - ANSWER ✔✔--a single DNA molecule associated with proteins


what are ribosomes and what do they do? - ANSWER ✔✔--particles made of rRNA and protein


-carry out protein synthesis by using mRNA (messenger RNA)


where are ribosomes found? - ANSWER ✔✔--floating around in cytosol (free ribosomes)


-bound to rough endoplasmic reticulum (bound ribosomes)


-nucleus


what are some characteristics of the endoplasmic reticulum (ER)? - ANSWER ✔✔--more than half the

total membrane in the cell


-continuous with nuclear envelope



Created by ©EmilyCharlene 2025. All rights reserved.

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