Unit C: Section 1 Quiz Flashcards
The Cell Theory states…
- All living things are made up of one or more cells.
- All life functions take place in cells, making them the smallest unit of life.
- All cells are produced from pre existing cells through the process of cell division.
What is a light microscope?
An instrument used for the magnification in which the specimen is illuminated by a beam of white light.
What is an electron microscope
A microscope that uses a beam of electrons to produce a high quality image.
What does isotonic mean
A solution that has the same concentration of solutes as that in the cell.
Red blood cell shape is unchanged.
What does hypertonic mean.
A solution that has a higher concentration of solute than that in a cell. I do.
Red blood cells shrink
what does hypotonic mean?
A solution that has a lower concentration of solutes than that in a cell.
Red blood cell is swollen (turgid)
What is endocytosis?
when molecules are too large to pass across the cell membrane they have another option. To use vesicles saca that surround the large particles and contain it. A vesicle forms around the particle and the cell membrane pinches off around it so that the vesicle is inside the cell.
What is exocytosis?
A vesicle surrounds the particle, then moves to the plasma membrane and fuses with it. The vesicle then ruptures.
Both exocytosis and endocytosis require energy from ATP
What is active transport?
Requires energy as the particle moves against the concentration gradient from low to high concentration.
What is passive transport?
Doesn’t require energy as the particle moves down the concentration gradient from high to low concentration.
What is peritoneal dialysis?
The peritoneum lines the abdominal cavity and used to filter waste out of blood internally.
What is hemodialysis?
A machine is used to filter waste products out of the blood, doing what healthy kidneys normally would do.
