The Introduction of American Crops Such as Maize,manioc,and Sweet Potatoes

question 53

Multiple Choice

The introduction of American crops such as maize,manioc,and sweet potatoes into Africa helped fuel

• A) a population boom in Africa.
• B) the introduction of new illnesses into Africa.
• C) an African population decline.
• D) a growing international trade between Africa and Europe.
• E) an increase in the number of obese people.

---

Definitions:

Facilitated Diffusion

Passive transport mechanism in which a solute follows its concentration gradient across a membrane by moving through a transport protein.

Concentration Gradient

A variation in the concentration of a substance across a distance.

Glucose Transporter

Proteins located in cell membranes that assist in the transport of glucose molecules into and out of cells, facilitating the use of glucose for energy.

Facilitated Diffusion

A process of passive transport, with no energy consumption, where molecules move across a cellular membrane via protein channels.