| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.90 |
| Score | 0% | 58% |
In fermentation, what replaces oxygen in anaerobic respiration?
ascorbic acid or peptides |
|
starches |
|
water |
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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.
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 mph to a mass of 1 kg |
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1 m/s to a mass of 1 kg |
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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.
Which of these is matter than cannot be separated into different types of matter by ordinary chemical methods?
molecule |
|
atom |
|
element |
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compound |
An element is matter than cannot be separated into different types of matter by ordinary chemical methods.
Plant cells are surrounded by:
only a cell wall |
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only a cell membrane |
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neither a cell membrane nor a cell wall |
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a cell membrane and a cell wall |
Animal cells are surrounded by a semipermeable membrane which allows for the transfer of water and oxygen to and from the cell. In plant cells, the cell membrane is surrounded by a somewhat rigid cell wall which provides the cell structure and support.
In cell biology, what part of the cell contains organelles?
cell membrane |
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cell wall |
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cytoplasm |
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nucleus |
The nucleus of a eukaryotic cell contains the genetic material of the cell and is surrounded by cytoplasm which contains many organelles.