| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.16 |
| Score | 0% | 63% |
During digestion, after proteins are broken down where does the undigested food go next?
stomach |
|
esophagus |
|
small intestine |
|
large intestine |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
The angle of reflection is equal to which the following?
refractive index |
|
90° |
|
angle of incidence |
|
focal point |
The law of reflection specifies how waves, including light waves, bounce off of surfaces. Specifically, the angle of incidence of the approaching wave is equal to the angle of reflection of the reflected wave as measured from a line perpendicular (90°) to the surface.
In cell biology, where does DNA replication take place?
mitochondria |
|
Golgi apparatus |
|
nucleus |
|
cytoplasm |
The cell nucleus contains the genetic material of the cell and is where DNA replication takes place.
The process of diffusion allows __________ to exchange oxygen, carbon dioxide, nutrients, and waste between blood and the body's cells.
veins |
|
capillaries |
|
arteries |
|
red blood cells |
Capillaries are small thin-walled vessels that permit the exchange of oxygen, carbon dioxide, nutrients, and waste between blood and the body's cells. This process of exchange is called diffusion.
Leafy vegetables, beans, potatoes, fruits, and whole grains are good sources of:
saturated fat |
|
protein |
|
fiber |
|
unsaturated fat |
Fiber provides bulk to help the large intestine carry away waste. Good sources of fiber are leafy vegetables, beans, potatoes, fruits, and whole grains.