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| 1 | |
Why does an atom that gives up electrons become positively charged? What
causes the positive charge? |
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| 2 | |
In pure water, what must be done to decrease the OH- concentration?
To decrease the H+ concentration? |
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| 3 | |
What elements must all amino acids contain? What elements will only some
amino acids contain? |
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| 4 | |
How could you distinguish sucrose and lactose from protein by analyzing
the elements in the molecules? |
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| 5 | |
If the DNA molecule were placed in boiling water, how would the molecule
change? |
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| 6 | |
Some molecules such as many alcohols are soluble in water and in hydrophobic
liquids such as oils. How easily do you think these molecules would cross the
cell membrane? |
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