Loewi Demonstrated That Synapses Operate by the Release of Chemicals

question 58

Multiple Choice

Loewi demonstrated that synapses operate by the release of chemicals. He did this by:

• A) applying adrenaline directly to the heart muscle.
• B) collecting fluid from a stimulated frog's heart, transferring it to another frog's heart, and measuring that heart rate.
• C) measuring the speed of a dog's reflexes while the dog was under the influence of various drugs.
• D) applying an extract of marijuana in eye drops and discovering that it dilated the pupils.

---

Definitions:

Technology 2

An advanced or updated version of a technology, implying improvements or enhancements over previous versions.

Supply Function

A relation that shows the quantities of a good that producers are willing to sell at different prices, holding other factors constant.

Production Function

An economic model that describes the relationship between the inputs used in production and the resulting output.

Factor 1

Represents the primary variable or input used in the production of goods or services, typically labor or capital.