True or False: In the soil test for phosphorus, using the soil test kit, adding solution E will produce a bluish color on the solution if phosphorus is sufficient. Select one: O True False

Q: create a serial dilution from a 1.5 x 10^8 CFU/ml stock solution that will give you 1500CFU/ml when…

A: Serial dilution is the technique of step-wise dilution of a sample. It allows a uniform and…

Q: What are the expected problems in the centrifuge in case of imbalance of samples ? *

A: Centrifugation is a process of separation of molecules from mixtures by applying centrifugal force…

Q: Bigger size sample would result to better quality spectra compared to smaller sample with small size…

A: Attenuated Total Reflection - Fourier Transform Infrared Spectroscopy is a technique to study the…

Q: For the sake of convenience, a laboratory staff stood on tiptoes without the help of a foot stai for…

A: The appropriate measures need to be taken to prevent the risk of hazards, especially in health care…

Q: Outline a method for a fully quantitative test for reducing sugars. Please keep it simple

A: A reducing sugar is a carbohydrate that contains a free aldehyde or alpha-hydroxyketone group that…

Q: RESULTS AND OBSERVATIONS: PARTI: PRECIPITATION BY HEAT TUBE NO. 1 TREATMENT 0.5 mL of 5%albumin…

A: Albumin is a protein. Different forms of albumin are found in blood plasma, egg white, and milk.…

Q: True or False: The turbidity of a sample incubated in a liquid medium can be assessed to estimate…

A: Turbidity means cloudiness present in a sample.

Q: Enumerate the step-by-step procedures of performing both techniques using a schematic diagram. -…

A:

Q: The dilution factor of the sample to be used for a serial dilution is always 1. True or False True…

A: Introduction: Any dilution where the concentration decreases by a similar factor in each progressive…

Q: Eosin Y test solution procedure in standardization

A: Introduction: Eosin is pink in color and stains proteins vaguely. In normal tissue, nuclei are…

Q: Qualitative Analysis of Carbohydrates HELP Select the test: Place test tubes in waterbath Fehling's…

A: A carbohydrate is an organic compound having carbon, hydrogen, and oxygen and with the general…

Q: Which objective should always be in place at the beginning of observing a specimen? O A) low (4X) B)…

A: An objective lens is one of the lenses present in a compound microscope. The objective lens are…

Q: Phytochemical test Physical description of extract: Color: Reddish brown Transparency: Turbid pH:…

A: Antifungal agents are those that act against fungi and their growth. They might inhibit the growth…

Q: One of the following is NOT one of the goals of sterility testing To assure safety of products To…

A: Sterility testing It is a testing that confirms that the products are free from the presence of…

Q: The normal state of cations and anions in a soil is in the hydrated state. TRUE OR FALSE

A: Hydrated state means in combination with the water. Soil is made up of very small and large…

Q: please Indicate the tests to quantify certain parameter  as indicator of quality in Squash Soup.

A: Quality check and assurance are the two aspects that makes the product highly efficient to consume.…

Q: State the difference between reducing and non-reducing sugars.   Give one test to show the…

A: Carbohydrates are made up of carbon, hydrogen, and oxygen molecules. Carbohydrates are the most…

Q: Compute for the dilution of the bottle and each tube Refer to the schematic diagram below: 1g 1 ml.…

A: The soil is rich in micro and macronutrients. It provides the essential nutrients for the growth of…

Q: Explain this example of the following water quality serial dilution. Note the dilution factors and…

A: Given information TNTC - Too many to count in plate 1:1 TNTC- in plate 1:10 10 cfu's= 1:100 1 cfu's…

Q: draw a schematic diagram on the Extraction of Flavonoids using the procedures stated below.

A: Extraction of flavonoids

Q: make the test principle, materials required for the analysis, sample preparation, test procedure,…

A: A variety of organic compounds exist in nature. Among them, the nitrogen-containing organic…

Q: Ninhydrin Test Samples used:  Egg Albumin Gelatin Dispersion Added reagent: Ninhydrin Solution…

A: Ninhydrin is a general test for proteins and amino acids. It degrades amino acids into aldehydes,…

Q: Sample Molisch's Test Benedict's Iodine Test Test Collagen Galactose Mannose Oil Starch Table Sugar

A: Molisch's test is used to test for presence of all carbohydrates (sugars), even for carbohydrates…

Q: A. Experimental Results Sample No. 1 2 3 4 5 *Enter qualitative observations Table 1. Results of the…

A: Sample No. 1- Lactose Sample No. 2- Fructose Sample No. 3- Starch Sample No. 4- Ribose Sample No. 5-…

Q: Wintrobe from Westergreen regarding accuracy of the test in a tabulated order.

A: Both methods are used for estimating E.S.R rate or the erythrocyte sedimentation rate. Most of the…

Q: Which of these two, Olive oil and beef tallow would be the identity of the sample in the picture:

A: Olive oil: It is composed of mainly mixed triglyceride esters. The esters are mainly of oleic acid,…

Q: For a simple routine qualitative analysis, why is an early morning sample of urine used for the…

A: Qualitative analysis is one of the effective way to diagnose various diseases. The sample for…

Q: Provide the reagents used and the positive result to test the following nutrients:

A: there are different reagents or chemicals that reacts with each biomolecules and gives a different…

Q: Actual resut or product Name of test Test compound Reagents used Formaidehyde Benzaidehyde Tollen's…

A: The chemical group that consists of a carbonyl-carbon atom and a carbonyl-oxygen atom that are…

Q: A sample of pond water is tested using the most probable number method. There are 3 positive tubes…

A: Given ,  10 mL - 3 positive tube 1 mL - 1 positive tube 0.1 mL - 1 positive tube

Q: A specimen of silty soil has a bulk density of (18 kN/m3) and a moisture content of (13%) determine:…

A: The loose covering of earth that covers the planet's surface is referred to as "soil," which is a…

Q: In a tabular form, enumerate other chemical qualitative tests for carbohydrates, discuss its…

A: Carbohydrates are biomolecules composed of carbon, hydrogen and oxygen. They are the most abundant…

Q: Parameter Positive sample (n = 84) Negative sample (n = 19) value

A: The interpretations from above data is given below: - First and foremost, the p value of all the…

Q: equipment used to measures the temperature, turbidity and salinity of the water

A: Temperature: The thermometer is an instrument that is used to measure the temperature in Water. The…

Q: Describe the proper technique for performing reagent strip testing.

A: These are the plastic strip consists of chemicals. It changes colour when dipped in urine.

Q: When a sample presents some matrix interference, which of the ff. are carried out? Dilute sample to…

A: shift in analytical results caused by one or more specific constituents in the matrix, generally…

Q: RODAC plates are used for Select one: Water sampling Air sampling Sterility testing Surface…

A:

Q: agar is autoclaved

A: Answer :

Q: A bottle filled with previously moistened mustard seeds and water was screw-capped tightly and kept…

A: Step 1 Water is essential for all physiological activities of plants. It is a medium in which…

Q: In outline form discuss the steps of Ziehl-Neelsen staining Complete the table for National…

A: It was developed by Ziehl and later on modified by Neelsen. So this method is also called…

Q: A carbohydrate sample reacts positively with all test reagents except for Lugol's. The sample could…

A: Carbohydrates: a. It is the most abundant organic compound present in nature and consists of only…

Q: The nutrient broth is a basic media used for growing a broad variety of microorganisms in the…

A: In research, many experiments are conducted to prove a concept. In this process, obtaining…

Q: The chemical precipitation method can be used for ceramic nanoparticles production. * TRUE FALSE

A: “Since you have asked multiple questions, we will solve the first question for you. If you  want any…

Q: True or false: Ethidium bromide is added to your hot liquid agar solution to help sepa bands by size…

A: Agarose gel electrophoresis is one of the major techniques that is used in molecular biology…

Q: Give the importance of heating as a laboratory technique

A: Heating is an important laboratory technique because it can be used to accelerate chemical…

Learning and memory

Learning is defined as a relatively permanent and irreversible adaptive change in behavior. It always results from experience. The ability of an organism to store and recall the effects, sensations, and knowledge gained through learning and experience is called memory.