Cell Structure and Function Flashcards
What are light microscopes?
They are optic lenses that uses light to change the orientation of the image
What is an electron microscope?
A microscope that uses a beam of electrons and higher magnification and more detailed
What is a prokaryote cell?
It is a single-celled organism lacking a nucleus or membrane-bound organelles
What is a Eukaryotic cell?
A cell that has membrane-bound organelles and a nucleus
What is a plasma membrane made up of?
A phospholipid bilayer with embedded proteins
What does the plasma membrane regulate?
The passage of some substances
What is cytoplasm?
It is made up of organelles in gel-like cytosol
What are ribosomes?
Cellular structures responsible for protein synthesis
What does facilitated transport do?
It moves material across the plasma membrane with the assistance of transmembrane proteins
Which if the following are found in eukaryotic cells but not prokaryotic cells?
Golgi body
A typical prokaryotic cell __________________ compared to a eukaryotic cell.
is smaller in size by a factor of 100
Which plasma membrane component can be either found on its surface or embedded in the membrane structure?
protein
Which of the following does a prokaryotic cell shave that an animal cell does not?
cell wall
Describe why eukaryotic cells being compartmentalized can make their metabolism more complex?
different chemical reactions can occur in isolation of each other
What property of the phospholipid bilayer allows proteins to move laterally in the membrane?
phospholipid molecules are not covalently bonded to each other
The inside of a phospholipid bilayer is known as being:
hydrophobic
Active transport must function continuously because __________.
diffusion is constantly moving the solutes in the other direction
