Correct Answers
The two frog heart experiment to show chemical transmission was performed by: -
Answer-Otto Loewi
Which one or more of the following are correct about the two frog hearts experiment?
(choose all that apply)
Stimulation of the vagus nerve of one heart decreased the rate of the second heart
placed next to it.
Vagus-stoff increased the heart rate.
Stimulation of the vagus nerve increased the heart rate
Stimulation of the sympathetic nerves releases accelerans-stoff - Answer-Stimulation of
the vagus nerve of one heart decreased the rate of the second heart placed next to it.
Stimulation of the sympathetic nerves releases accelerans-stoff.
Charles Best - Answer-helped perform surgery on dogs
John Mcleod - Answer-provided his lab a graduate student
Frederick Banting - Answer-proposed that the pancreas released a substance to
metabolize glucose
JB Collip - Answer-Helped to purify the pancreatic enzymes
The Nobel prize for the discovery of insulin was awarded to Charles Best and Frederick
Banting. - Answer-False
Sir Alexander Fleming showed that penicillin can cure infections in mice and humans. -
Answer-False
Sir John Vane discovered: - Answer-prostacylcin
Who discovered drugs that interfere with nucleic acid metabolism? - Answer-Gertrude
Elion and George Hitchings
Robert Furchgott discovered: - Answer-Endothelium derived relaxing factor
Which one of the following is correct about the "sandwich experiment" performed by
Robert Furchgott?
Three strips of the aorta were used.
Acetylcholine acts directly on the smooth muscle to cause relaxation
The endothelium was removed from both aortic strips