Term
| What four elements make up 96% of the human body's mass? |
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Definition
| Carbon, Hydrogen, Oxygen, and Nitrogen (CHON) |
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Term
Oxygen
Protons: 8
Electrons: 8
Neutrons: 8
What is oxygen's atomic number? mass?
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Definition
Atomic number: 8
Atomic mass: 16 |
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Term
| What is the difference between ionic and colvalent bonds? |
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Definition
Ionic bond: ions gain or lose electrons
covalent bond: ions share electrons |
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Term
| What bond holds together the atoms of a molecule? |
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Definition
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Term
| When do atoms become stable? |
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Definition
| when their outer electron level is full |
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Term
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Definition
| positive hydrogen attracted to a negative oxygen |
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Term
| True or False: Water is a solute. |
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Definition
| False; Water is a solvent which is the substance in which the solute is dissolved |
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Term
| What is A and what is B?[image] |
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Definition
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Term
| True or False: The concentration of H+ ions increases as the scale of the pH increases. |
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Definition
| False; The concentration of the H+ decreases as the pH scale increases. |
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Term
| Why is carbon important to the human body? |
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Definition
| Because its atomic structure gives it unique bonding properties |
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Term
| What are three fundamental structures of carbon molecules? |
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Definition
| straight, branched, rings |
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Term
| What is the ratio for carbohydrates? |
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Definition
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Term
| Where is glycogen stored? |
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Definition
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Term
| [image]What is the only difference betweent he structures of amino acids? |
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Definition
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Term
| What are the two types of side group interactions that an amino acid can have? |
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Definition
1. Sulfur atoms-the sulfur atoms in an amino acid can form covalent bonds that force the protein bend into a certain shape
2. hydrogen bonds-cause the protein to fold into a specific shape |
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Term
| What process binds amino acids together to create a polypeptide? |
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Definition
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Term
| True or False: Enzymes are reusable. |
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Definition
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Term
| What has more stored energy: carbohydrates or lipids? |
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Definition
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Term
1. Saturated fats are...(solid or liquid?)
2. Unsaturated fats are...(solid or liquid?) |
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Definition
1. Saturated fats are solids
2. Unsaturated fats are liquids |
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Term
| True or False: A phospholipid consists of a phosphate head, glycerol, and three fatty acids. |
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Definition
| False; A phospholipid consists of two fatty acids. |
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Term
| What is the main difference between nucleic acids and carbohydrates, lipids, and proteins? |
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Definition
| Nucleic acids have only one function: to make proteins. |
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Term
You have to really think about this question:
Is photosynthesis an endothermic or an exothermic reaction? cellular respiration? |
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Definition
Photosynthesis=endothermic
Cellular respiration=exothermic |
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