| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.92 |
| Score | 0% | 58% |
Most digestion takes place where?
mouth |
|
large intestine |
|
small intestine |
|
stomach |
The small intestine is where most digestion takes place. As food travels along the small intestine it gets broken down completely by enzymes secreted from the walls. These enzymes are produced in the small intestine as well as in the pancreas and liver. After the enzymes break down the food, the resulting substances are then absorbed into the blood via capillaries in the small intestine walls.
Which of the following is not a method of heat transfer?
radiation |
|
conduction |
|
reflection |
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convection |
Heat is always transferred from warmer to cooler environments through conduction, convection, or radiation.
Which of these is matter than cannot be separated into different types of matter by ordinary chemical methods?
element |
|
atom |
|
molecule |
|
compound |
An element is matter than cannot be separated into different types of matter by ordinary chemical methods.
Force is measured in newtons (N) with 1 N being the force required to impart an acceleration of:
1 m/s2 to a mass of 1 kg |
|
1 m/s to a mass of 1 kg |
|
1 mph to a mass of 1 kg |
|
1 m/s2 to a mass of 1 kg/s2 |
Weight is a force that describes the attraction of gravity on an object. Force is measured in newtons (N) with 1 N being the force required to impart an acceleration of 1 m/s2 to a mass of 1 kg.
Cellular fermentation takes place:
aerobically |
|
in plant cells |
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anaerobically |
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in the presence of oxygen |
If no oxygen is present, cellular respiration is anaerobic and will result in fermentation where either lactic acid or alcohol is used instead of oxygen.