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The phospholipids form a bilayer around the cell
The amount of phospholipid extracted from red blood cells led researchers to propose that ____
According to the fluid-mosaic model, _____ are partially or wholly embedded in a fluid phospholipid bilayer.
According to the fluid-mosaic model the hydrophilic heads of the phospholipids face the intra and extracellular fluids.(true or false)
The proper functioning of some of the membrane proteins depends on the fluidity of the membrane. (true or false)
species to species, individual to individual, and cell to cell
Glycolipids and glycoproteins vary from __________.
Particular molecules or ions freely cross the plasma membrane with assistance from _____.
glycoproteins and glycolipids
Transplant rejections are the result of the immune system's response to foreign__________________
A person's blood type is determined by the presence of particular _____ in the red blood cells' membranes
During diffusion molecules move from areas of low concentration to areas of high concentration. (true or false)
The hydrophobic tails of the phospholipids in the plasma membrane are what prevent ions and charged molecules from freely crossing the membrane.(true or false)
The central vacuole gains water.
When a plant cell is placed in a hypotonic solution what will occur?
red blood cells that burst after being placed in a hypotonic solution
The term hemolysis refers to ______.
What affects water retention by the kidneys, water uptake from tissue fluids by the capillaries, and water absorption from the large intestine?
Molecules move from high concentration to low concentration.
What correctly describes facilitated transport?
carrier proteins are needed, it requires the expenditure of energy. molecules move from areas of low concentration to areas of high concentration. and all of the above.
Which of the following correctly describes active transport?
binding a receptor protein in the plasma membranes
The peptide hormone, follicle stimulating hormone, would activate its specific target cells by _____.
Bacteria, fungi and plants all have an extracellular component called a cell wall. (true or false)
The extracellular matrix of animal cells supports them and fills the spaces between the cells.(true or false)
People may get injections of _____, a component of the extracellular matrix of animal cells, to get rid of their wrinkles.
Organs with tissues that get stretched a lot like the heart and bladder are characterized by _____.
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