The name of bacterial cells which have no nucleus.
What is a prokaryote?
100
The type of microscope we use in the lab.
What is a compound light microscope?
100
When an organism attempts to maintain a constant internal environment in response to environmental changes.
What is Homeostasis?
100
A type of cell transport which requires no cellular energy a moves substances from areas of high to low concentration.
What is Passive Transport?
200
The small structure where proteins are synthesized, these are found on the ER and in the cytoplasm.
What is a ribosome?
200
An organelle which synthesizes sugars from air and water and found only in plants.
What is a chloroplast?
200
Cells and other microscopic objects are measures in this unit which is equal to 1/1000th of a millimeter.
What is a micrometer.
200
The type of UNDIFFERENTIATED cell which can turn into all the many types of cells which make up your body.
What is a stem cell?
200
The process of diffusion where water moves across a semipermiable membrane to balance out a high concentration of a solute that cannot move across the membrane.
What is osmosis?
300
A specialized vesicle which contains digestive enzymes for breaking down macromolecules.
What is the lysosome?
300
The smallest type of cell, typically only 1/10 the size of other cells.
What are prokaryotes.
300
The type of microscope used by biologists to observe LIVING cells.
What is a light microscope.
300
This is the scientific name of this type of highly concentrated solution which dehydrates cells. For example when bacteria fall on salty beef jerky or dried fruit they immediately shrivel up and die when the water leaves their cells. This is because the concentration of solutes is much higher in the food then in their cytoplasm.
What is hypertonic solution?
300
A structure of active transport where a protein uses the energy of ATP to move a solute across a membrane from an area of HIGH concentration to an area of LOW concentration.
What is a protein pump?
400
The organelle which breaks down sugar to produce cellular energy.
What are Mitochondria?
400
Four structures and organelles which ALL cells have.
What are cell membrane, cytoplasm, DNA, and ribosomes?
400
This microscope produces three dimensional type images of VERY tiny structures which would otherwise be invisible.
What is a scanning electron microscope (SEM)?
400
The model of a cell membrane which states that there are many phospholids and proteins that make up the membrane and they are not fixed in place but rather drift around.
What is the fluid mosaic model?
400
A transmembrane protein which facilitates diffusion of specific substances across a cell membrane which otherwise would not be able to cross. They are shaped like tubes.
What is a protein channel?
500
Tubes and fibers of protein which allow organization, structure and movement of the cell.
What is the cytoskeleton.
500
The outer boundary of plant and bacterial cells which provides support and protections. Animal cells do not have this structure.
What is a cell wall.
500
How you must prepare a specimen to look at it under an electron microscope.
What is dry it out, coat it in gold, and place it in a vacuum.
500
The hormone released by your pancreas which signals liver cells to reduce blood sugar.
What is insulin.
500
A form of mass transport where vesicles are used to actively transport substances INTO a cell.