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Unit 3

Cell Structure, Types, and Specialization (A2.2, B2.2, B2.3, A2.1)

QuestionAnswer
Which structure is found in both prokaryotic and eukaryotic cells? Ribosomes
What explains how all cells in a multicellular organism can have the same DNA, and yet there are many different types of cells? Some genes are expressed in some cells but not others.
Compare and contrast animal cells to plant cells. Did you say: plants have a cell wall and membrane, animal cells only have cell membrane, plant cells have chloroplasts, animal cells do not. Anything else?
70s vs 80s ribosomes? 70S are found in prokaryotes, 80S are found in eukaryotes. You can think of it like eukaryotes have an updated version of ribosomes.
How are red blood cells adapted for oxygen transport? They contain hemoglobin (the protein that binds to oxygen,) lack a nucleus, and have a biconcave shape.
What is cell specialization? The adaptation of cells for specific functions.
Why can specialized cells perform different functions even though they contain the same DNA? Different genes are expressed in different cells.
What is the main component of plant cell walls? Cellulose
Function of the nucleus? Stores DNA and controls cell activities
Function of ribosomes? Protein synthesis
Function of rough ER? Synthesize and transport proteins
Function of smooth ER? Synthesize lipids
Function of golgi apparatus? packages and transports proteins.
Function of cell membrane? Regulates movement of substances in and out of the cell
Created by: user-2043531
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