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Botany Lab Exam: Cells and Tissues Review
aha
21
Biology
Undergraduate 2
11/30/2010

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Cards

Term
Why should only lens paper be used to clean microscope lenses?
Definition
Microscope lenses scratch easily.
Term
What is the function of the condenser?
Definition
Concentrate light in the plane of the object being viewed.
Term
What is resolution?
Definition
Capacity of microscope to separate tiny, closely adjacent objects.
Term
Where should an adjustable condenser be set for maximum resolution?
Definition
About 1mm away from the stage.
Term
What is the function of the iris diaphragm?
Definition
Regulate amount of light passing through and object.
Term
What is the function of the interpupillary adjustment on the dissecting microscope?
Definition
Allow variation in distance between the ocular lenses.
Term
How many layers of cells are there in an Elodea leaf?
Definition
Two layers.
Term
When chloroplasts appear to be moving within a living cell, what is the cause of their movement called?
Definition
Cytoplasmic streaming or cyclosis.
Term
What are cytoplasmic bridges?
Definition
Thin strands of cytoplasm across a vacuole.
Term
What parts of cells are normally visible with the aid of a compound light microscope?
Definition
Cell, wall, chloroplasts, vacuole, nucleus.
Term
If present in a cell, where are anthocyanin pigments located?
Definition
In the vacuole.
Term
How are amyloplasts distinguished from parenchyma cells in a potato?
Definition
Amyloplasts are "clam-shaped" and stain purple with an indicator.
Term
How does a chromoplast differ from a chloroplast?
Definition
Chloroplasts have chlorophyll, chromoplasts have carotenoids.
Term
In what part of a cell are chloroplasts located?
Definition
In the cytoplasm.
Term
What is cyclosis?
Definition
The movement of cytoplasm.
Term
What is a vacuole? What is the thin boundary of the vaculoe called? Is it visible?
Definition
A liquid-filled organelle for storage and turgor pressure; tonoplast; yes
Term
Where would you look for the nucleus in an Elodea cell?
Definition
You would look along the edge of the vacuole.
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?
Definition
Anthocyanin pigments would be in the vacuole; chromoplasts would not.
Term
How can you tell a potato amyloplast from a cell?
Definition
Amloplasts stain purple with an indicator; cells don't.
Term
How would you distinguish an amyloplast from a chloroplast?
Definition
Chloroplasts are green, amyloplasts are clear unless stained.
Term
Specifically where do starch grains develop in a cell?
Definition
In the amyloplasts.
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