Tumors Can Deprive Cells of Oxygen

question 9

Multiple Choice

Tumors can deprive cells of oxygen. This happens through angiogenesis, which is

• A) When tumors block the blood stream, preventing oxygen from getting to some of the cells "downstream" from the blockage
• B) When tumors cause blood vessels from the circulatory system to grow into the tumor, preventing oxygen and nutrients from traveling to other cells
• C) When tumors secrete chemicals that convert oxygen to carbon dioxide, which other cells can't use
• D) When tumors lodge in the lungs, blocking oxygen uptake
• E) When tumors grow so fast they force the heart to slow down, slowing the transport of oxygen through the body

---

Definitions:

Increasing Number

A growing quantity or count of items or entities.

More Complex

A description of something that is composed of many interconnected parts, thus being difficult to understand or to deal with.

Values, Interests

Core principles or standards of behavior, and the advantages or benefits that motivate individuals or groups.

Integrated

Combined in such a way that the elements become a unified whole, often referring to efforts of inclusion or synthesis.