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Is a stain on a microscope specimen used to turn it a pretty colour or not?
No, stains on microscope specimens are used to increase contrast and highlight specific structures or organelles. The color imparted by the stain helps differentiate different components of the specimen for easier observation under the microscope.
What does acdified phloroglucinol stain?
Acidified phloroglucinol is used as a stain for the detection of lignin. If lignin is present, it will turn a bright red colour.
What color will gram stain positive turn into?
Gram-positive bacteria will retain the crystal violet dye during the gram staining process, appearing purple/blue under a microscope.
What is the different reaction of Gram-negative and Gram-positive bacteria to Gram's stain testing?
Gram-positive bacteria retain the crystal violet stain and appear purple when stained with Gram's stain, because the thick peptidoglycan layer in their cell wall traps the dye. On the other hand, Gram-negative bacteria do not retain the crystal violet stain and appear red or pink after the addition of a counterstain like safranin, due to their thin peptidoglycan layer which is unable to retain the dye.
What is the colour of phenolphthalein in salt water?
It will turn purple
Is a stain on a microscope specimen used to turn it a pretty colour or not?
No, stains on microscope specimens are used to increase contrast and highlight specific structures or organelles. The color imparted by the stain helps differentiate different components of the specimen for easier observation under the microscope.
What does acdified phloroglucinol stain?
Acidified phloroglucinol is used as a stain for the detection of lignin. If lignin is present, it will turn a bright red colour.
What colour do you turn when you die and what colour is it?
Blue...
Why is it useful to turn the specimen on its side for this part of your study?
It is important to turn Êthe specimen on its side while dissecting Êbecause different organs Êof a specimen are best seen in a side view. This makes it easier Êfor study.
After focusing on top of specimen what happens to the depth of focus as you turn the fine adjustment knob backward?
As you turn the fine adjustment knob backward after focusing on the top of the specimen, the depth of focus increases. This is because moving the fine adjustment knob backward moves the specimen away from the objective lens, which increases the distance between the specimen and the lens, resulting in a larger depth of focus.
What colour do you get mixing blue and white?
a lighter blue. pretty much any color mixed with white would turn it lighter.
Why do you need to add iodine solution to a specimen?
Iodine solution is commonly used to test for starch. If starch is present in a substance (e.g. a leaf which undergone photosynthesis) then the iodien solution would turn blue black. If no starch is present then it remains as light brown.
What colour do goldfish turn when they are sleeping?
goldfish turn blue when they are asleep
What colour does litmus turn with an acid?
red
Which Colour do alkali turn phenolphthalein?
Alkalis turn phenolphthalein pink or magenta.
What colour does iodine solution turn when starch is presant?
It turns a dark purple/blue colour
What color will gram stain positive turn into?
Gram-positive bacteria will retain the crystal violet dye during the gram staining process, appearing purple/blue under a microscope.
