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bio test #2
chemistry and biochemistry
| Question | Answer |
|---|---|
| an atom has 4 protons how many electrons does it have? | 4 |
| the postitivly and negatively charged atoms are known as... | ions |
| which set of atoms already have a full set of valence electrons | carbon |
| describe the parts of a atom including there charge. | electrons-negative protons-positive nutrons-no charge |
| what is the difference bettween ionic bonds and covalent bonds | covalent bonds share electrons and ions steal electrons |
| what is a chemical formula and provide a example | it tells you the number of atoms of each element in a compound ex. C6H12O6 |
| what is a hydrogen bond | a weak bond between 2 molecules |
| what is a enzyme | they are macromolecular biological catalysts |
| name 6 elements required for life | oxyegen, hydrogen,nitrogen,carbon,calcium,and phosphorus |
| what makes carbon unique | it can make a covalent bond to as many as 4 different atoms |
| lipid | stores energy |
| carbohydrate | provides energy |
| nucleic acid | stores genetic info |
| protien | contols rate of chemical reactions through enzymes |
| what type of bond is between 2 amino acids | hydrogen |
| carbohydrate id | CHO or ring structure |
| protein id | CHONPS |
| lipi id | CHO |
| nucleic acid id | CHOP |
| why is water unquie | its hydrogen bonding, its polar |
| what are the 2 parts of a nucleic acid | DNA, RNA |
Created by:
zoelynn6
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