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Which solvent is used to decolourise leaf?
Alcohol, such as ethanol or isopropyl alcohol, is commonly used to decolorize leaves during the preparation of slides for microscopic examination. The alcohol removes chlorophyll and other pigments from the leaf tissue, allowing for better observation of cell structures under a microscope.
Why is decolorizing the most crucial step?
It is possible to decolourise gram positive bacteria and thus get false results of all gram negative organisms. Similarly, it is possible to under-decolourise and get all gram positive organisms. Ideally controls of known organisms should be run with each stain.
Would You Most Likely Measure A Leaf Using ounces pounds Or tons Explain?
ounces
Explain what happened when a leaf is placed in alcohol and what it took from it?
When a leaf is placed in alcohol, typically ethanol, the alcohol acts as a solvent, extracting chlorophyll and other pigments from the leaf. This process helps to decolorize the leaf, making it pale or transparent. The alcohol disrupts the cell membranes, allowing the pigments to dissolve into the alcohol solution. As a result, the leaf's chlorophyll is removed, which is essential for photosynthesis, leaving behind a clear or colorless structure.
Why Kerosene does not decolourise bromine water while cooking oils do.?
Kerosene does not decolourise bromine water because it is a saturated hydrocarbon, meaning it lacks double or triple bonds that can react with bromine. In contrast, cooking oils contain unsaturated fatty acids, which have carbon-carbon double bonds. These double bonds can react with bromine, leading to the decolourisation of the bromine water as it forms brominated compounds. Thus, the presence of unsaturation in cooking oils is the key factor in this reaction.
Which solvent is used to decolourise leaf?
Alcohol, such as ethanol or isopropyl alcohol, is commonly used to decolorize leaves during the preparation of slides for microscopic examination. The alcohol removes chlorophyll and other pigments from the leaf tissue, allowing for better observation of cell structures under a microscope.
What happens to leaves colors when they are dipped in alcohol?
Decolourise
What is a caterpillar eating a leaf an example of?
consumption. if this is wrong explain
What changes in color occur when bromine or KMnO4 reacts with an alkene?
The purple KMnO4 is decolourise
What is pulvinus explain with diagram?
A cushion like swelling at the base of the leaf or leaflet.
Why is decolorizing the most crucial step?
It is possible to decolourise gram positive bacteria and thus get false results of all gram negative organisms. Similarly, it is possible to under-decolourise and get all gram positive organisms. Ideally controls of known organisms should be run with each stain.
What is the different between saturated and unsaturated?
Saturated hydrocarbon does not decolourise bromine water while unsaturated hydrocarbon decolourize it.
What are the four groups of substances besides sugar which plant needs?
explain the the green leaf is the food factory of plants animal and human
What is a sample data point used to explain the stems and leaves in a stem and leaf plot?
key
Would You Most Likely Measure A Leaf Using ounces pounds Or tons Explain?
ounces
An insect eats a leaf Explain why the insect depends on the sun for energy?
for the fullfill ment of vitamin d and to complete their life cycle .
What symbol did St. Patrick use to help convert Ireland?
The three leaf clover. He used it to help explain to Holy Trinity.
