Term
| How many layers of cells are there in an Elodea leaf? |
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Definition
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Term
| How should a coverslip be applied to a drop of liquid on a microscope slide? |
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Definition
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Term
| When chloroplasts appear to be moving within a living cell, what is the cause of their movement called? |
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Definition
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Term
| In most living cells, such as those of Elodea, where is the cytoplasm located? How extensive are plant cell vacuoles? |
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Definition
| Along the edges of the cell, with the greater portion (up to 90%) of volume occupied by one or two central vacuoles |
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Term
| What are cytoplasmic bridges? |
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Definition
| Narrow stretches of cytoplasm that criss-cross the central vacuole |
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Term
| What parts of cells are normally visible with the aid of a compound light microscope? |
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Definition
| Nucleaus, nucleolus, chloroplast, chromoplasts, other plastids, cell wall, (mitochondria are barely visible in good light microscopes) |
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Term
| If present in a cell, where are anthocyanin pigments located? |
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Definition
| In the cell sap within vacuoles, gives red, blue or purple color to flowers and some leaves |
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Term
| How are strach grains distringuished from parenchyma cells in a potato |
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Definition
| Grains are located within cells, may exhibit concentric rings, often several are located within a given cell. Will stain darkly with iodine. |
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Term
| What are striae, and where are they located in a spiderwort stamen hair cell? |
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Definition
| Fine lines that are roughly parallel and are located on the cell surface |
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Term
| How does a chromoplast differ from a chloroplasts? |
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Definition
| Primarily by the green color of chlorophyll in the chloroplasts. (they are/can be of similar size though) |
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Term
| In what part of a cell are chloroplasts located |
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Definition
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Term
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Definition
| Cytoplasmic streaming, the movement of the cytoplasm and inclusions in it |
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Term
| What is a vacuole? What is the thin boundary of the vacuole called? Is it visible? |
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Definition
| Enclosed chamber within the cell. The boundary is a vacuolar membrane (tonoplast) that is generally not directly visible in light microspes. |
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Term
| Where would you look for the nucleaus in an Elodea cell? |
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Definition
| Along the edge of cell or nestled in a corner, they tend to be grayish, oblong, and large (relitive to other cell structures) |
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Term
| Anthocyanin pigments and chromoplasts may both be red in color. If you were to observe a cell that had both, how could you distinguish between them? |
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Definition
| The anthocyanin pigments are water soluble; while the contents of the chromoplasts tend to be lipid soluble. |
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Term
| How can you tell a potato strach grain from a cell? |
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Definition
| No cell well, several grains ware often found in each cell |
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Term
| How would you distinguish a strach grain from a chloroplast? |
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Definition
| Chloroplast will be green and have a fairly regular oval shape |
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Term
| What is a cytoplasmic bridge? |
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Definition
| Narrow strands of cytoplasm that tend to criss-cross the central vacuoles |
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Term
| Specifically where do strach grains develop in a cell? |
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Definition
| Inside leucoplasts (membrane bound plastids, especially amyloplastids), on pyrenoids of larger chloroplasts |
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Term
| Where would you expect to find a nucleolus? |
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Definition
| Inside the nucleus, often appears to be a darker region within it |
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