When a protein of 50 nanometers is mixed with water, the opaque result is called a(n)
?A. suspension.?B. emulsion.?C. solution.?D. colloid.
D
You might also like to view...
Which of the following types of joints lacks a joint cavity and is held together by a fibrous connective tissue?
1. Fibrous joints 2. Cartilaginous joints 3. Synovial joints a) 1 only b) 2 only c) 3 only d) 1 and 2 e) All of these choices
Which is NOT an example of a graded potential?
A. a receptor potential in a sensory receptor cell B. a depolarizing excitatory postsynaptic potential (EPSP) C. a hyperpolarizing inhibitory postsynaptic potential (IPSP) D. a depolarizing pacemaker potential E. a depolarizing action potential
What is described by the Frank-Starling mechanism of the heart?
A. the relationship between end-diastolic volume and heart rate B. the relationship between end-systolic volume and stroke volume C. the relationship between length and tension in cardiac muscle cells D. the relationship between sympathetic stimulation and stroke volume E. the relationship between arterial blood pressure and stroke volume
The QRS wave of the ECG corresponds to depolarization of the atria
Indicate whether the statement is true or false.