Use the Following to Answer Questions

question 45

Multiple Choice

Use the following to answer questions
Figure: Wheat and Autos in the United States and Korea
-(Figure: Wheat and Autos in the United States and Korea) According to the graph,for every extra:

• A) bushel of wheat the United States wants to produce,it must give up 100 cars.
• B) car South Korea wants to produce,it must give up 40,000 bushels of wheat.
• C) car the United States wants to produce,it must give up 100 bushels of wheat.
• D) car South Korea wants to produce,it must give up half a bushel of wheat.

---

Definitions:

Acetylcholine

A neurotransmitter and chemical that motor neurons of the nervous system release in order to activate muscles.

Secretion

The process by which substances are produced and discharged from a cell, gland, or organ for a particular function in the organism or for excretion.

Terminal Cisternae

Enlarged areas of the sarcoplasmic reticulum around the myofibrils of muscle cells, involved in calcium ion storage.

T-tubules

Tubular extensions of the plasma membrane that penetrate into the center of skeletal and cardiac muscle cells, facilitating the transmission of electrical impulses.