The____________________ model describes the structure of a plasma membrane.
All
objects in motion have ________________ energy .
Plasma membranes have _____________________________ because they let some substances in and reject others.
Plants will _________________ when there is a decrease in turgor pressure inside their cells.
Some of the proteins embedded in the plasma membrane serve as __________________.
The movement of particles from an area of high to low concentration is known as _____________________ .
Amoebas ingest large particles of food by Amoebas ingest large particles of food by _____________________ .
Cells
secrete hormones by ___________________.
A
solution that has the same concentration of dissolved materials as the
contents of a cell it surrounds is said to be a(n) _________________ .
Movement
of substances using an energy source and proteins is known as
__________________.
The
concentration of water in a (n) X____________________ solution outside
the cell is lower than that inside the cell.
Cell
size is limited by the cell's _____________________________ .
An increase in _____________ pressure is caused by the movement of water into a plant cell.
The plasma membrane is a bilayer that consists mainly of_______________ molecules
Plasma membranes maintain homeostasis by being selectively _______________ to substances.
In diffusion, particles move spontaneously toward areas of __________ concentration.
Small
____________ substances diffuses rapidly through the bilayer of the
plasma membrane.
When
dynamic equilibrium occurs, ions and molecules no longer change their
_______________.
Glucose is a substance that crosses the plasma membrane by ______________ diffusion.
Some
cells take in liquid droplets by __________________ .