Term
| The reason atomic weight of an element is a larger number than the atomic number of that same element is that... |
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Definition
| The atomic weight includes the total number of protons and neutrons, whereas the atomic number includes only protons. |
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Term
| When a molecule or atom (either) is polar, it means that.. |
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Definition
| It may be a positively charged ion, it may contain oxygen, and it cannot contain hydrogen. |
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Term
| H and H+ have the same atomic number and the same atomic weight. The difference between them is that.. |
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Definition
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Term
| A covalent bond which produces a molecule of H2O when the bond forms occurs when.. |
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Definition
| Glucose bonds to glucose to form a polymer. |
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Term
| A phospholipid is a molecule which |
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Definition
- is part polar and nonpolar
-will have 2 fatty acid tails.
- has a region that will not interact with water. |
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Term
| It has often been said that carbon (C) is the central element of life. What demonstrates its versitility? |
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Definition
| Carbon has 6 electrons and can form up to 4 covalent bonds with other atoms. |
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Term
| The type of molecule most responsible for aiding movement of other molecules across a membrane is.. |
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Definition
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Term
| When energy is used to move molecules across a cell membrane, the energy usually comes from what? |
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Definition
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Term
| In the reaction ATP -> ADP + Phosphate + Energy, one can say that.. |
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Definition
| The energy released comes from breaking a phosphate bond. |
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Term
| Addition of atmospheric CO2 into molecules which will be used to form glucose will occur... |
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Definition
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Term
| The energy released when electrons pass through the mitochondrial electron transport chain... |
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Definition
| is used to move H+ from across the inner mitochondrial membrane. |
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Term
| After they have let the protein complexes of the electron transport system in the mitochondria, electrons finally are transferred to _______ and ______ is formed. |
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Definition
| Electrons are transferred to oxygen and water is formed. |
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Term
| A common characteristic of the formation of polymers is that.. |
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Definition
| All polymers form using dehydration reactions. |
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Term
| The main difference between the passive and active transport... |
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Definition
-the molecules of active move material towards a high concentration of the molecule being moved.
-Movement by ACtive require energy. |
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Term
| NAD:H gives its electrons to which protein complex of the electron transport chain? |
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Definition
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Term
| What can be found in the mitochondrial membrane of the cell? |
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Definition
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Term
| What is one reason that water is a good solvent, but not a universal one? |
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Definition
| Water is very polar and non-polar molecules do not dissolve in water. |
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Term
| The difference between covalent and ionic bonds is that.. |
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Definition
-Covalent bonds are formed when atoms share electrons.
-ionic bonds form between a positive ion and a negative ion. |
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Term
| How many CO2 molecules are formed from one molecule of pyruvate? |
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Definition
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Term
| What is necessary for diffusion to occur? |
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Definition
| a concentration difference. |
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Term
| When there are pores in the membrane, they usually.. |
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Definition
| area specific for a certain molecule. |
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Term
| What type of bond is used when a peptide bond is formed? |
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Definition
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Term
| Most polar molecules cannot cross a cell membrane without help because.. |
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Definition
| They cannot pass through the non-polar, hydrophobic region of the membrane. |
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Term
| What are the characteristics of living organisms? |
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Definition
1. Use energy
2. respond to enviornment
3. Maintain internal enviornment
4. have DNA info base
5. Reproduce
6. Composed of 1 or more cells
7. Highly Organized
8. Evolve |
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Term
| Which is the weakest bond? |
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Definition
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Term
| ACtive trnasport across the cell membrane is important because it... |
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Definition
| moves molecules froms areas of low concentration to areas of high concentration. |
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Term
| A ________ reaction between two amino acids create a(n) _________ bond. |
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Definition
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Term
| A Bond between carbon and hydrogen differs from a bond between oxygen and hydrogen because.. |
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Definition
| only the oxygen-hydrogen bond is a polar bond. |
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Term
| What is formed during glycolysis? |
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Definition
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Term
| What pathway directly releases CO2 |
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Definition
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Term
| What is the purpose of the Electron Transport Chain? |
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Definition
| The ETC allows the release of energy from electrons. |
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Term
| What is the tissue type that can be found covering organs and lining openings in the body? |
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Definition
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Term
| An atom such as oxygen shows high electronegativity. This means that it.. |
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Definition
| Has a strong attraction for electrons. |
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Term
| The type of tissue one would find as support for the end of your nose, your ears, or your sternum is.. |
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Definition
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Term
| What molecule is usually used to directly power active transport? |
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Definition
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