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A+P Exam #1
Mixed Review Questions
| Question | Answer |
|---|---|
| What are the eight levels of organization? (least to greatest complexity) | Subatomic particles --> Atoms --> Molecules --> Organelles --> Cells --> Tissues --> Organs --> Organ systems |
| Give an example of a negative feedback loop. | When you run your body accommodates for a heightened body temperature by sweating to return the body to its set point. |
| Give an example of a positive feedback loop. | When pregnant, your body and baby grow and develop continously until the baby is born, the endpoint. |
| What is water used for in the body? | Lubricant, cushioning, heat sink source, component in liquid, and part of chemical reactions. |
| What does it mean for a compound to stable? Unstable? | A stable compound is nonreactive and an unstable one is reactive. |
| How can you tell the strength of an ionic bond? | It depends of the number of electrons transferred. The more transferred, the stronger the bond is. EX: Mg +2 O -2 > Na +1 F-1 |
| Which bond is stronger, ionic or covalent? | Covalent |
| What creates dipoles? | A difference in electronegativity between two atoms. |
| What is the difference between a strong acid and a weak acid? | A strong acid releases all of its H+ ions. A weak acid does not completely ionize. |
| What are some characteristics of a carbohydrate? | An energy source, dissolve in water but don't ionize, a structural component of DNA, RNA, and cells. |
| What are some characteristics of a lipid? | An energy source, regulate body temperature, cushion organs, form part of cells and signaling molecules. |
| What are some characteristics of a protein? | An energy source, can be polar or nonpolar, 3D structure, structural component in cells and tissues, form signaling molecules and enzymes. |
| What processes do ALL cells carry out? | Metabolism, transportation of materials, communication, and reproduction (via cell division). |
| What are the four main functions of epithelial tissue? | Protection, secretion, transport regulation, and sensation. |
| What are some characteristics of epithelial tissue? | Cellular connection, polar (top and bottom), attached to underlying connective tissue, avascular, regenerative. |
| What is connective tissue composed of? | Cells, protein fibers, and ground substance. |
| What are the three types of protein fibers? | Collagen, elastic, and reticular. |
| How are the different types of protein fibers distributed across the body? | They are found in differing quantities, depending on the needs of the particular area. |
| What are the three main types of connective tissues? | CT Proper, Fluid CT, and Supporting CT. |
| What are the two types of CT Proper? | Loose and Dense. |
| What are the two types of Fluid CT? | Blood and Lymph. |
| What are the two types of Supporting CT? | Bone and Cartilage. |
| What are the three types of Loose CT? | Areolar, adipose, and reticular. |
| What are the three types of Dense CT? | Regular, irregular, and elastic. |
| What are the three types of Cartilage? | Hyaline, fibrocartilage, and elastic. |
| Are bones vascular? Why or why not? | Yes, they are highly vascular because within them they make blood cells. |
| What are the function of bones? | Support, protection, hemopoiesis, and mineral storage. |
Created by:
MadisonFoleyReis
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