Lab 1.2 Diffusion Flashcards
Diffusion is the net movement of:
a solute from an area of higher concentration to an area of lower concentration
a solute from an area of higher concentration to an area of lower concentration
Diffusion is the net movement of:
Diffusion is the result of:
the random movement of molecules
the random movement of molecules
Diffusion is the result of:
A concentration gradient is present when there is:
a different concentration of solutes within a solution
a different concentration of solutes within a solution
A concentration gradient is present when there is:
The rate of diffusion may be influenced by:
density of media, concentration gradient, temperature, molecular size, and membrane permeability
density of media, concentration gradient, temperature, molecular size, and membrane permeability
The rate of diffusion may be influenced by:
Iodine by itself is ___?__. When it interacts with starch, iodine turns ___?___
brown, dark purple
The presence of glucose can be tested for by using:
glucose test strips
Glucose
the main type of sugar in the blood and is the major source of energy for the body’s cells
the main type of sugar in the blood and is the major source of energy for the body’s cells
Glucose
Starch
a complex polysaccharide made up of a large number of glucose units joined together by glycosidic bonds
a complex polysaccharide made up of a large number of glucose units joined together by glycosidic bonds
Starch
Media
substance through which diffusion occurs, such as water and air
substance through which diffusion occurs, such as water and air
Media
Solution
a solution is a mixture of two substances with one dissolved in the other
a solution is a mixture of two substances with one dissolved in the other
Solution
Solute
the substance dissolved in a solution
the substance dissolved in a solution
Solute
Solvent
the substance that there is most of in a solution
the substance that there is most of in a solution
Solvent
Selectively Permeable Membrane
allows some substances to pass through and blocks others based on size
allows some substances to pass through and blocks others based on size
Selectively Permeable Membrane
