apbio 8/7
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21 terms
Terms | Definitions |
|---|---|
 What is chemiosmosis | The movement of ions across a selectively permeable membrane, down their electromagnetic gradient |
| What is a kinase | kinase is a type of enzyme that transfers phosphate groups from high-energy donor molecules, such as ATP to specific substrates |
| What is a tumor | a solid or fluid-filled lesion that may or may not be formed by an abnormal growth of neoplastic cells that appears enlarged in size |
| What is malignant | a cancerous tumor |
| What is benign | a non-cancerous tumor |
| What is metastasis | the spread of a disease (cancer) from one organ or part to another non-adjacent organ or part. |
| What is a proto oncogene | A normal gene which, when altered by mutation, becomes an oncogene that can contribute to cancer |
| What is cytokinesis | The division of the cytoplasm and the plasma membrane following the division of the nucleus resulting into two cells, each having its own nucleus and cytoplasm surrounded by a plasma membrane. |
| What organisms use alcoholic fermentation | yeast and a few other microorganisms |
| Where does lactic acid fermentation occur | in the muscles |
| What is polarity | how equally bonding electrons are shared between atoms |
| How does polarity benefit life? | ... |
| What is high specific heat, high heat of vaporization property | Organization in the membrane(keeps water in and out of the cell). It takes more heat to evaporate and vaporize water than other liquids. (slow molecules and tightly bonded=more energy needed to separate them) |
| How does high specific heat, high heat of vaporization benefit life | "Ice Blankets" insulate ponds, thus sustaining pond life through cold periods. |
| What is less dense as a solid property | Solids have gaps in particles of it. Liquids fit together, fill the gaps and are more dense |
| How does less dense as a solid benefit life | xxx |
| What is cohesion | Capacity to resist rupturing when stretched |
| What is adhesion | The tendency of dissimilar particles and/or surfaces to cling to one another |
| How do cohesion/adhesion benefit life | Allows water to be transported through plants |
| What are solvent properties | Water has excellent solvent properties. Ions and polar molecules dissolve easily in it. |
| How do solvent properties benefit life | Clustering of water molecules (a sphere of hydration) forms around any fluid associated with life |
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