If a substance has a molecular weight greater than 10,000 daltons and it appears in the urine, one can conclude that this substance is:
A. filtered, secreted and reabsorbed
B. not filtered or secreted
C. not filtered, but is secreted.
D. filtered and reabsorbed
Ans: C. not filtered, but is secreted.
You might also like to view...
__________ is a hereditary condition resulting from a deficiency of a clotting factor.
Fill in the blank(s) with the appropriate word(s).
Total lung capacity (TLC) cannot be measured with a spirometer.
Answer the following statement true (T) or false (F)
Diploë is spongy bone found in ________ bones.
A) short B) flat C) pneumatized D) sesamoid E) irregular
Draw graphs showing the effect on action potentials in a cell following effective doses of each of the listed neurotoxins. Assume that the cell is normally brought to threshold by an electrical stimulus applied to it, so that any abnormality is due to the toxin. Precise values for voltage and duration are not important, just a general trend in how the action potential may be different from normal.
1. puffer fish poison (blocks voltage -gated sodium channel activation) 2. tetraethylammonium (blocks voltage -gated potassium channels) 3. ouabain (blocks sodium-potassium pumps) 4. sea anemone toxin (blocks voltage -gated sodium channel inactivation)