Substance X was isolated in a urine sample, but it is too big to pass through the glomerular filtration membrane. How is this possible?
A) The glomerulus must be infected and hyperpermeable.
B) The kidney must be damaged.
C) It was secreted later in the distal tubule.
D) It isn't possible. There was a flaw in the urinalysis.
Answer: C
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Carbon dioxide and water readily combine to form carbonic acid. The change in pH as the acid dissociates can be demonstrated with an indicator dye that changes color at a particular pH. In your physiology lab, you perform this experiment in two beakers containing room-temperature water and indicator, labeled Resting and Exercise based upon the status of the student who exhaled through a straw
into the solution. The Resting student had been sitting at the table for 30 minutes before exhaling while the Exercise student had just finished sprinting up the stairs to class late. A stopwatch was used to measure how long it took for the solutions to change color. The following data were generated by the students. Explain why the time required for the color to change was different between groups, using the word substrate in your answer.
The directional language of anatomy begins with what assumption about the position of the body?
A. It is in a prone position. B. It is in anatomical position. C. It is in a supine position. D. There are no assumptions made.
Fluid collected in lacteals will be carried in __________ trunks
A. bronchomediastinal B. lumbar C. intestinal D. thoracic
An autosomal dominant condition in a family will disappear if in any generation no one inherits the disease.
Answer the following statement true (T) or false (F)