| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.25 |
| Score | 0% | 65% |
Which of the following is not a base unit in the metric system?
meter |
|
degree Fahrenheit |
|
gram |
|
liter |
The Fahrenheit scale is used for measuring temperature in the British system. The metric system uses the Celsius scale.
Which of the following represents the largest value?
1 mL |
|
1 ML |
|
1 cL |
|
1 kL |
Mega (M) is 106, kilo (k) is 103, centi (c) is 10-2, milli (m) is 10-3 so 1 ML represents the largest value.
Which of the following is the formula for work?
\(W = {{F}\over{d}}\) |
|
\(W = \vec{F}\vec{d}\) |
|
\(W = {F}{d}\) |
|
\(W = {\vec{F} \over \vec{d} }\) |
Work is performed on an object when an applied force causes displacement along the same vector. Measured in joules (J) or newton-meter (Nm), work is calculated by multiplying force times displacement: \(W = \vec{F}\vec{d}\)
In fermentation, what replaces oxygen in anaerobic respiration?
water |
|
ascorbic acid or peptides |
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starches |
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lactic acid or alcohol |
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.
During digestion, where is digested food absorbed into the blood stream?
pancreas |
|
large intestine |
|
stomach |
|
small intestine |
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.