Module 4 Flashcards
The ____ is the basic unit of all living things.
cell
_______ _____ are complex cells with a membrane bound nucleus and subcellular structures (organelles).
Eukaryotic cells
All fungi, plant, and animals are ______.
eukaryotes
_______ ______ are simple cells and most are unicellular.
Prokaryotic cells
_____ includes bacteria and don’t have a true nucleus.
Prokaryotes
The _____ _____ is a covering that regulates what comes into or leaves form the cell.
plasma membrane
The _____ is a mixture of water, salts, proteins, and organelles.
cytoplasm
The ____ is the control center of the cell. DNA and RNA are made here.
nucleus
What are the 3 main parts of eukaryotic cells?
- plasma membrane
- cytoplasm
- nucleus
The _____ _____ is also called “membrane” or “plasmslemma”.
plasma membrane
The ______ is a gelatin-like substance, plus structural fibers and organelles (but not the nucleus)
cytoplasm
The ____ contains the genetic library for the cell.
nucleus
The _____ _____ covers and protects the cell, controls what goes in and comes out, links to other cells, tells other cells who it is (flies a flag).
plasma membrane
The _______ gives it’s cell shape, contains structural (cytoskeletal) proteins, comprised of organelles (except nucleus) and cytosol.
cytoplasm
The ______ is where the genetic information is stored (the library with cookbooks entitled “How to Make a New Cell”, “How to Make the Proteins You Need”, etc…
nucleus
_____ is the genetic material that must be reproduced and read without error, and is generally never altered or destroyed.
DNA
_____ is made in the nucleus and exported into the cytoplasm, where it carries out its work: making proteins.
RNA
The new model for the cell membrane, which cam to be called the ______-_______ ______ features a lipid “sea” with protein “icebergs” floating in it and proteins which are integral or peripheral.
fluid-mosaic model
The lipids in the plasma membrane consist of ______ or ______ heads and ______ or ________ tails.
polar / hydrophillic heads;
non-polar / hydrophobic tails
_____ means embedded in bilayer, go from one side to the other.
Integral
_____ means it is associated with the inside or outside of the cell.
Peripheral
If the peripheral is _____ the cell, it links the cytoskeleton to the membrane.
inside
If the peripheral is ______ the cell, it links the cell to connective tissue or to other cells.
outside
_____ _____ ______ are loosely associated with the cell membrane and lie either completely on the outside or completely on the inside of the cell.
Peripheral membrane proteins