| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.84 |
| Score | 0% | 77% |
A subatomic particle found in the nucleus of an atom. It carries no electric charge. This desribes which of the following?
electron |
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atom |
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proton |
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neutron |
A neutron is a subatomic particle found in the nucleus of an atom. It is neutral as it carries no electric charge.
A subatomic particle found in the nucleus of an atom. It carries a positive electric charge. This desribes which of the following?
electron |
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proton |
|
neutron |
|
atom |
A proton is a subatomic particle found in the nucleus of an atom. It carries a positive electric charge.
A person's genotype is their genetic makeup and includes:
phenotypes |
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dominant alleles |
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both dominant and recessive alleles |
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recessive alleles |
A person's genotype is their genetic makeup and includes both dominant and recessive alleles. Phenotype is how the genes express themselves in physical characteristics.
In cell biology, the primary difference between anaerobic and aerobic respiration is that aerobic respiration requires:
water |
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mitochondria |
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sugar |
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oxygen |
Some plant cells produce their own energy through photosynthesis which is the process by which sunlight, carbon dioxide, and water react to make sugar and oxygen. Animal cells cannot produce their own energy and, instead, generate energy when mitochondria consume outside sugar and oxygen through aerobic respiration.
pH is a scale that measures of how basic or acidic a solution is. A solution with a pH of 4 is:
neutral |
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acidic |
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basic |
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alkaline |
An acid is a substance that gives up positively charged hydrogen ions (H+) when dissolved in water. A base (alkaline) gives up negatively charged hydroxide ions (OH-) when dissolved in water. pH is a scale that measures of how basic or acidic a solution is. Numbered from 0 to 14, solutions with a pH of 7 are neutral, less than 7 are acidic, more than 7 are alkaline.