8.1
this British scientist first discovered cells in 1665 when he viewed cork
Robert Hooke
This organelle found in eukaryotes is responsible for breaking down structures that a cell can use, often with enzymes inside of it
lysosomes
this type of transport requires energy, because particles are going against the concentration gradient
active
this description of relatively constant internal and physical and chemical conditions is critical for all living things to maintain
homeostasis
the basic unit of structure and function of all living things
cell
this missing organelle is the key difference to identifying a prokaryote or a eukaryote
nucleus
This organelle provides internal rigidity in cells, especially in plants, who have one central one
vacuole
This type of transport involves the random movement of particles across a membrane from an area of higher to lower concentrations
diffusion
if cells have a specific job to help the function of the overall organism, than we call them this
specialized
as opposed to smooth ER, rough ER have these other organelles embedded in them, which alters their structure and function
ribosomes
this type of microscope may be less expensive, but it has the advantage of being able to view living specimens
light microscope
this type of organelle is ONLY in the animal cell
this is a special type of facilitated diffusion, where special channels allow water to diffuse quickly across a cell membrane
osmosis
a group of similar cells organized together for a common task is called this
tissue
these specific facilitated diffusion channels allow water to diffuse across a cell membrane quickly
aquaporins
List the three parts to the cell theory
- all living things have cells
- cells are the basic unit of structure and function
- all new cells come from old cells
List, in order, the three organelles responsible for producing and distributing proteins
ribosomes
Rough ER
Golgi
active transport involves molecular transport, which uses protein pumps, and bulk transport, which uses these two processes to move large materials up the concentration gradient
endocytosis
exocytosis
a bone is an example of this level of organization, which works together with your whole skeleton to perform the essential task of structural support in your body!
organ
this German scientist helped further the cell theory in 1839
Theodor Scwhann
While both use beams of electrons to view images, a SEM creates a 3D image of this part of its target cell, as opposed to the flat 2D images the TEM creates
surface
This molecule is the primary component of the cell membrane, which allows it to be flexible and move slightly in its environment
lipid (Lipid bilayer)
if a cell is place in this type of solution, there will be no net movement of water molecules inside or outside of the cell
isotonic
if cells need to communicate with each other, they will have these on their cell membrane or in their cytoplasm to "receive the signal"
receptor
List the 4 levels of organization, from least to most complex
cell, tissue, organ, organ system