How can you tell that the dark wet spot on the paper towel is fat and not water?

Q: Can you help me with the name of labels: Z1, PS, ZF, CH, Z2 on this picture

A: The given diagram shows the anaphase separation of a dividing cell. The Z1 shows the astral…

Q: What is the purpose for ground substance?

A: Ground substance is also called matrix. It is an intercellular material in which the cells and…

Q: Of the two principal polymers used in column chromatography and electrophoresis, which one would be…

A: The column chromatography procedure is used to separate a single chemical compound from a mixture.…

Q: Why can’t nitric acid stains be removed by washing?

A: Nitric acid: it has the chemical formula HNO3. It is a conjugate acid of nitrate and a protic…

Q: What do you mean by Nissl's granules?

A: Nissl's granules are part of neurons. They perform very important functions and hence is vital for…

Q: (а) (b) (c) 200 nm 200 nm 200 nm

A: BSE: Backscattered electron imaging mode, image production of sample is formed by the electrons that…

Q: How can we make soap?

A: Soaps are the salts of fatty acids. Soaps are generally used as surfactants for washing cloths,…

Q: The dye used in TLC for detecting separated lipids by spraying the plate isa) Mordantb) Alizarinc)…

A: Thin layer chromatography (TLC) is an analytical technique in which one can separate non-volatile…

Q: Why does water separate out from a gel after freezing?

A: On freezing of gel some damage occur to gel. damage occur to polymer and colloids that binds the gel…

Q: How many times more water does beef require, compared with chicken?

A: The food with the highest water footprint is beef and it uses six times more amount of water than…

Q: grades of alcohol are used in dehydration for staining

A: Dehydration of tissues is carried out to remove the water in the tissue before embedding because…

Q: When it comes to simple stains, why is time so important? And what is the purpose of rinsing the…

A: Microbiology is a hugely important field in both basic and applied research. New and fascinating…

Q: Crisco is made from vegetable oils, which are usually liquid. Why is Crisco a solid? Hint: Read the…

A: Lipids are the major class of biomolecules that contains hydrocarbons which makes them insoluble…

Q: What structural characteristics are necessary for good drying oil?

A: Drying oils are the ones which get hardened into a tough film when they are exposed to air. These…

Q: What force was responsible for the movement of substances through the filter paper?

A: Filter paper is made up of cellulose and thus functions as permeable membrane and movement of…

Q: which among the following will not produce a translucent spot when placed in a paper? a. none of…

A: Oils and fats are major components of our body and play a vital role in growth, maintenance of…

Q: hat Is Polychrome Methylene Blue?

A: Methylene blue is a popular dye that allows us to glimpse microscopic life in vibrant colors. Before…

Q: In a hurry one day, you merely rinse your lunch disheswith water. As you are drying your salad bowl,…

A: Polar molecule have regions that have opposite charges due to presence of uneven numbers of…

Q: how many minute does it take a sugar to dissolve in hot water?

A: Sugar dissolves more quickly in hot water than cold water because of kinetic energy of particles.…

Q: FEEDSTUFF COLOR TEXTURE PARTICLE SIZE SHAPE A. Feed supplements Dicalcium phosphate Limestone Oyster…

A: ANSWER

Q: tenry filled two jars with the same volume of water as shown in the picture. He placed a lid on J…

A: The experiments are conducted to understand biological and scientific phenomena that take place…

Q: How can polarography detect the analyte?

A: Jaroslav Heyrovsky discovered polarographic method   Polarography is a simple method in analytical…

Q: Why is it important that the agarose is exposed to ethidium bromide, which is either added to the…

A: Ethidium bromide is utilized during separation of fragments of DNA by agarose gel electrophoresis.…

Q: Which type of micelle does soap form when we are washing grease in our hands or cloth: Oil Water…

A: Micelle is a structural arrangement of the amphipathic molecules associated together to form a…

Q: How is fluoroscopy different from radiography?

A: Radiography and fluoroscopy are imaging techniques used in the medical studies. The Radiography or X…

Q: Why does the water on glass (left) look flat, while the water on the wax paper (right) looks…

A: Water is a unique solvent because of its unique physical and chemical properties.

Q: In a spectrophotometer, what should be the appearance on the graph if the sample is pure? presence…

A: Spectrophometry is a widely used technique in identification and confirmation of chemical…

Q: explain how the bands move threw the gel?)

A: Introduction : To verify a person's identity, scientists employ DNA fingerprinting to analyze the…

Q: What happens when you mix oil and vinegar? Why?

A: The like dissolves like rule suggest that polar solutes are soluble in only polar solvents whereas…

Q: 7. Short answer. Professor Forni has hired you as a research assistant and you need to make an X-gal…

A: Questions are more than one. Please repost the other questions separately. X-gal staining is central…

Q: Can paper chromatography be used to separate and identify very volatile substances? Explain your…

A: Paper chromatography is a separation technique that is mainly involved in the principle for the…

Q: -B Identify the structure labeled B.

A: The process of oogenesis (egg formation) occurs in the ovaries and is stimulated by gonadotropins…

Q: Hopkin Cole's Test Observations Albumin Gelatin Casein

A: Hopkin Cole's Test test the presence of indole ring

Q: Positive Staining Negative staining

A: Staining Procedure Dye Charge Of The Chromophore/ Colored Ion Charge Of The Target Cellular…

Q: Why doesn’t the starch leave the cellulose bag and move into the beaker solution?

A: Starch Starch is a polysaccharide. It is a primary storage carbohydrate of plants. Starch is…

Q: How do you make 70 ml of a 60% solution??

A: The making of solutions of different concentrations can be achieved with the help of principle…

Q: Solvent front Carotene original pencil line Spinach Leaf Chromatogram

A: Hi, Thanks For Your Question.  Answer : These Are Pigments Of Spinach Leaf.  These Are As Below From…

Q: Matching Type Sample 1. Sample A (1 cup syrup) 2. Sample B (1 ½ tablespoon syrup) Type of Solution…

A: the tonicity of a solution usually refers to its solute concentration relative to that of another…

Q: How does soap dissolve grease and oil?

A: Oil and water do not combine because water is polar, whereas the fatty particles in the oil, grease,…

Q: Iodine in Ziehl Neelson’s staining serve as the mordant. True or false underline the word that is…

A: Answer

Q: Apple Slice dipped into different solution

A: apple slice dipped in water should have some brownig , but not as much as the control . beacuse…

Q: Millon's Test Observations Albumin Gelatin Casein

A: help to detect the soluble protein.

Q: How does soap clean away dirt?

A: Soap is a cleansing agent used to clean dirt and kill microbes present on a surface. It is made by…

Q: In keeping a bottle of vegetable oil with no preservative, it must be coveredtightly and…

A: Triacylglycerols are lipids present in oils that have a glycerol backbone with the three hydroxyl…

Q: stain

A: Cartilage is a smooth elastic tissue, it protects the bones at the joint by padding it.

Q: Photo by MJTPanganihan Color: Color: Form:

A: A bacterial colony is a collection of bacteria that all came from the same mother cell. This means…

Q: An IV bag contains 250 mL of a 5% mannitol solution. How many grams of mannitol are in the IV bag?

A: Mannitol - It is an osmotic diuretic which helps to produce urine by removing excess water fromthe…

Q: Complete the table below by adding (+) or (–) if each of the sample (amino acid or protein)below…

A: biuret test:            Compounds with peptide bonds forms purpule colour when treated with biuret…

Q: How can the thickness of the smear affect the staining procedure?

A: Smear can e defined as the spread of cells in a layer to observe it under microscope. Since, cells…