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What is an unfixed tissue?
Unfixed tissue refers to biological samples that have not been treated with a fixative to preserve their cellular structure. Unfixed tissue is more prone to degradation and changes over time compared to fixed tissue. It is typically used for special analyses or research purposes that require fresh tissue samples.
Which statements about the ratio of cell surface area to cell volume is are correct?
As cell volume increases, the ratio of cell surface area to cell volume decreases. This is because the surface area increases by a square factor while the volume increases by a cube factor. A higher surface area to volume ratio is more favorable for efficient nutrient exchange and waste removal in cells.
How would you calculate the surface area t volume ratio?
To calculate the surface area to volume ratio, simply divide the surface area of the object by its volume. This ratio is commonly used in science to understand how efficiently an object exchanges materials with its environment, with a higher ratio indicating better surface area for exchange relative to its volume.
Does a basketball have a lot of surface to volume ratio?
No. A sphere has the smallest surface to volume ratio possible and a basketball is nearly spherical in shape (it has surface dimpling and seams).
What is meant by surface area to volume ratio?
Surface area to volume ratio is defined as the amount of surface area per unit volume of either a single object or a collection of objects. The calculation of this measurement is important in figuring out the rate at which a chemical reaction will proceed.
What is the primary purpose of a fixative?
To kill the tissue so that post mortem decay is prevented
How does Carnoy's solution act?
Carnoy's solution is a fixative creating covalent chemical bonds between proteins in tissue. Most commonly used fixative in histology is formaldehyde. It prevents decay.
A ratio between mass and volume?
The ratio between mass and volume is density.
What is an unfixed tissue?
Unfixed tissue refers to biological samples that have not been treated with a fixative to preserve their cellular structure. Unfixed tissue is more prone to degradation and changes over time compared to fixed tissue. It is typically used for special analyses or research purposes that require fresh tissue samples.
What is Carnoy's fixative?
Fixatives are classified as coagulative fixatives and cross-linking fixatives. Carnoy's fixative is a coagulative fixative. Coagulative fixatives change the shape or structure of protein molecules without binding to them, while cross-linking fixatives bind chemically to protein molecules at one or more points. In cross-linking fixatives molecules are linked together to form an insoluble latticework by forming chemical bridges between protein chains. Carnoy's fixative is a coagulative fixative.
What is the ratio of mass to volume called?
DensityThe ratio of mass to volume is density.
How to calculate Volume to volume ratio?
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Is picric acid a dye or fixative?
Picric acid is primarily used as a fixative in histology to preserve tissue specimens for microscopy. It is not commonly used as a dye in the same way that other chemicals like hematoxylin and eosin are used to stain tissues for visualization.
What is the formula for void ratio?
Void ratio (e) is typically defined as the ratio of the volume of voids to the volume of solids in a soil sample. The formula for void ratio is e = Vv/Vs, where Vv is the volume of voids and Vs is the volume of solids in the soil sample.
How can you find a cell's survace area to volume ratio?
to obtain the ratio of surface area to volume, divide the surface area by the volume.
What is the relationship between edge length ratios area ratios and volume ratios of similar figures with various scale factors?
Area ratio = (edge-length ratio)2 Volume ratio = (edge-length ratio)3 Volume ratio = (area ratio)3/2
The clearance ratio for a single stage compressor?
The clearance ratio for a single stage compressor is the ratio of the volume clearance at the end of the suction stroke to the volume displaced by the piston during the compression stroke. It is important to minimize clearance ratio to improve compressor efficiency. A lower clearance ratio indicates less trapped volume and better performance of the compressor.
