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Which statement most accurately describes ocular lens?
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Which statement most accurately describes iris diaphragm?
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Module 1
Anatomy & Physiology
| Question | Answer |
|---|---|
| Which statement most accurately describes ocular lens? | The lens through which you look to view the slide |
| Which statement most accurately describes iris diaphragm? | Controls the amount of light that passes through the slide |
| Which statement most accurately describes arm? | Supports the body of the microscope |
| Which statement most accurately describes objective lens? | Lenses of various powers of magnification |
| Which statement most accurately describes coarse adjustment knob? | Moves the stage up and down; provides gross focusing |
| Which statement most accurately describes stage? | The surface on which the slide sits |
| Which statement most accurately describes fine adjustment knob? | Allows fine tuning of the focus |
| Which statement most accurately describes lamp? | The microscope's light source |
| Magnification of the ocular lens is usually | 10X |
| The lens that provides 100X magnification is the | oil-immersion lens. |
| Before you begin, you should make sure that | the objective lens is switched to the lowest-power magnification. |
| How should you carry the microscope? | One hand holding the base with the other carrying the arm |
| What is the depth of focus? | The thickness of a specimen that is in sharp focus. |
| What should you do if your slide looks dramatically different from the slide in your lab manual? | Change the magnification Get a new slide Move the slide All of the above |
| If you are having trouble making out details on your slide, what can you do? | Adjust the focus with the fine adjustment knob. Reduce the amount of light with the iris diaphragm. Both a and b. |
| What should you use to clean the lenses? | Lens paper and lens cleaning solution |
| What is the first step you should take to focus the image on the slide? | Examine the slide with the naked eye |
| What is the second step you should take to focus the image on the slide? | Begin on low power |
| What is the third step you should take to focus the image on the slide? | Focus with the coarse focus knob |
| What is the last step you should take to focus the image on the slide? | Refine the focus with the fine adjustment knob. |
| Which of the following statements accurately defines plasma membrane? | Boundary between the cell and the external environment; regulates the movement of substances in and out of the cell; composed of a phospholipid bilayer and many other components |
| Which of the following statements accurately defines cytoplasm? | Region between the plasma membrane and the nuclear membrane that contains the cytosol and organelles |
| Which of the following statements accurately defines nucleus? | Control center of the cell; contains the cell's DNA |
| Which of the following statements accurately defines mitochondrion? | Site of most of the cell's ATP production |
| Which of the following statements accurately defines ribosome? | Site of protein synthesis |
| Which of the following statements accurately defines peroxisome? | Contain enzymes that detoxify chemicals such as hydrogen peroxide |
| Which of the following statements accurately defines smooth endoplasmic reticulum? | Series of membranes Site of lipid and cholesterol synthesis and metabolism Drug and toxin detoxification All of the above are correct |
| Which of the following statements accurately defines rough endoplasmic reticulum? | Series of membranes; modifies proteins made by the ribosomes |
| Which of the following statements accurately defines Golgi apparatus (or complex)? | Group of membrane-bounded sacs ; Modifies and packages proteins for export or use in the cell |
| Which of the following statements accurately defines lysosome? | Vesicular organelle that contains digestive enzymes that break down different substances within the cell |
| Which of the following statements accurately defines centrosome? | Central area of the cell containing centrioles |
| Which of the following statements accurately defines cilia? | Hairlike extensions from the plasma membrane that propel substances past the cell |
| Which of the following statements accurately defines flagella? | Single extension from a cell that propels the cell itself |
| Which of the following statements accurately defines vesicle? | Small, membrane-bounded structure that buds off from the plasma membrane or another membrane-bounded structure |
| Which of the following statements accurately defines diffusion? | The movement of solute from a high concentration to a low concentration |
| Which of the following statements accurately defines osmosis? | The movement of solvent from a solution with a lower solute concentration to a solution with a higher solute concentration through a selectively permeable membrane |
| Which of the following statements accurately defines tonicity? | Comparative measure of the osmotic pressure of two solutions ; The ability of one solution to cause water movement by osmosis from another solution |
| Which of the following statements accurately defines cell cycle? | Continual process of growth and replication of cells |
| Which of the following statements accurately defines interphase? | Portion of the cell cycle during which growth is initiated and DNA is replicated |
| Which of the following statements accurately defines mitosis? | Portion of the cell cycle during which the cell divides its organelles, cytosol, and replicated DNA among two identical daughter cells |
| T/F: Resolution is the ability to see two objects as separate. | True |
| An organism viewed under medium power would have a magnification of _______________. | 100x |
Created by:
ryann245