1- Why does a banana peel turn from green black when placed at room temperature? 2- what happen to banana and the apple when put them in paperbag in fridge and why that change happed?

Q: 17. A flask with a surface area of 25 cm2 can hold 15 mL of new media. O True O False

A: A conical flask is one of the routinely used laboratory equipment for scientific research. In…

Q: Temperature Exposures: Analyze the Results What temperatures were the most damaging? Why are the…

A: Given: Need to find the answer for the given questions related to beetroot temperature condition and…

Q: Why is silver nitrate used in the cauterization of a wound?

A: Cauterization is the process of destroying tissues and sealing blood vessels using specific…

Q: BACTERICIDAL LAMPS OPEN TYPE DO NOT USE IN THE PRESENCE OF PEOPLE BECAUSE 1. when the bactericidal…

A: Germicidal lamps are the UV lamps, which are used to kill any germs like bacteria etc. to sterilize…

Q: 12. What is a cell line? * O Multiple growth of cells O Sub culturing of primary culture O…

A: Cell culture is the process of the growth of cells in the laboratory by providing them with…

Q: 1.- Discuss the relevance of cellular respiration in living beings. 2.- What is the purpose of the…

A: Answer 1. Cellular respiration is the way to get energy from organic molecules like glucose . It…

Q: 72. Prenatal and postnatal growth are characterized by changes in and portions. 73. decreases during…

A: 72. weight, height 73. Body weight 74. 24-48 hours

Q: 15. When a student adds antibiotic to the animal cell culture medium, the growth curve remains the…

A: Antibiotics are substances that inhibit growth or multiplication of bacteria. They are of two types…

Q: Questions: 1. What test tube will show positive starch hydrolysis and negative starch hydrolysis?…

A: Starch is a storage-type homopolysaccharide that contains two types of glucose polymers: amylose:…

Q: 16. A light microscope was used to examine the cells in the flask for confluence. O True O False

A: Cell confluence is defined as the percentage of area occupied by the cells that are growing in a…

Q: 3. Four-year-old Susie loves carrots. Her skin has turned orange from a pigment found in carrots…

A: In question number 3 We will ist discuss briefly about beta carotene pigment and then try to answer…

Q: 8- The following are methods of sterilization EXCEPT: O c) Sterilization by filters O b) Autoclaving…

A: Introduction: A combination of heat, chemicals, irradiation, high pressure, and filtration can be…

Q: 12

A: The healthcare industry uses various medical equipment and instruments that aid in the treatment of…

Q: 1- Why is CO2 often used in an incubator to culture mammalian cells? O to control or prevent…

A: CO2 incubators are climatically controlled, airtight containers used in life science labs to…

Q: why the Phenol Red solution changed color in your results

A: Phenol red is used as a pH indicator. A solution of phenol red will have a yellow color at a pH of…

Q: . You are investigating the ability of various compounds to investigate their ability to kill a…

A: The decimal reduction time (D-value) is a measure of the effectiveness of a process or treatment in…

Q: A radioactive molecule is added to a cell culture where the process shown in the diagram is taking…

A: DNA is a double stranded helical molecule that is made up of repeating nucleotides. The nucleotides…

Q: b. Successfully completed most steps of the Gram stain but failed to add the iodine (the mordant):…

A: Gram staining is a differential staining procedure used to classify two types of bacteria on the…

Q: 1. Decimal Reduction time is a measurement of   a. How long it takes for a given treatment to kill…

A: Note: “Since you have posted multiple questions, we will provide the solution only to the first…

Q: The ___________ color test reagent turns orange-brown in the presence of amphetamines.!

A: A biochemical substance that induces physiological responses, when introduced into the body, is the…

Q: 40 1000 400

A: The overall magnification of the microscope is calculated by multiplying the objective's magnifying…

Q: If you have a substance that you wish to sterilize (without destroying), and that substance is…

A: Introduction Any procedure that eliminates, eradicates, or renders inactive all life…

Q: 4. Which media discussed in this exercise would be best for checking a water sample for potential E.…

A: A culture medium otherwise called a growth medium is a liquid or solid medium to support the growth…

Q: Glucose is required for aerobic cellular respiration.. False True

A: Aerobic cellular respiration occur in  presence of oxygen in mitochondria. The first step occurs in…

Q: Help me, please! I wish I have a lot of time to do it by myself ... This is the article link and a…

A: An epidemic occurs when a disease spreads rapidly to a large number of hosts in a population in a…

Q: Q. 7. How will you test starch from iodine?

A: To test for starch, combination of iodine and potassium iodide solution in water  is used.

Q: elp on question 2 and 3

A: The culturing of microbe require media for culturing, and the media constituents vary from one…

Q: Can you make me 1-21 days observation for this just make invent your own i need Properly documented…

A: Asked : Explanation regarding given picture of fermentation

Q: Write about one of the Gram-Negative bacilli aerobic bacilli (aerobic gram negative nonenticar…

A: Hi dear, here's your answer what you want.please like this answer. Salmonella could be a genus of…

Q: Fit to 3. A group of students wants to study the effects of temperature on bacterial growth. To get…

A: Independent variable is the variable that is controlled or changed in an experiment to test the…

Q: 4. What is the total dilution in C? 5. What is the concentration of cells in tube C? 6. What is the…

A: Serial dilution is commonly used in molecular biology laboratories to determine the bacterial…

Q: 3. How does the depth of water affect light availability? How deep does light penetrate ocean water?…

A: The availability of light is dependent upon the depth of water, it changes when the depth of water…

Q: Why is it important for all plankton monitors to use the sample protocol for both sample collection…

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

Q: Scenario: In a species of butterflies, the allele for red wings (R) is dominant over blue wings (r)…

A: Chi-square test for independence or association is used to check whether two variables are related…

Q: 4. It is sex cell, a sperm or an egg. These have only one set of unpaired chromosomes. 5. One of a…

A: Chromosomes These are defined as the thread-like structures that are present inside the nucleus of…

Q: pH

A: The important quantity that reflects the chemical conditions of a solution is defined as the pH. The…

Q: TRUE OR FALSE only!

A: Answer 1 - Petri dishes and test tubes are containers used in cultivating microorganisms, but it is…

Q: i need the answer quickly

A: Sterilization refers to any process that removes, kills, or deactivates all forms of life…

Q: The nighlighted structure is the

A: A testicle is a reproductive organ present in males.  It is also called as testis. They are two in…

Q: 6/ The critical process in microscopic preparation of samples is * Mounting O Labelling Staining 8/…

A: 6- The critical process in microscopic preparation of sample is staining. In staining process cells…

Q: 30. Acid fastness of acid fast bacillis is due to: A Cord factor of bacteria 8. Mycolic acid in…

A: Given : Acidfastness of acid fast Bacillus is due to the property of bacteria to resist…

Q: Match the mode of disinfectant action for each of the following Gluteraidehydes Alcohol Phenols…

A: Here we are given mechanism of action of some disinfectants and i have matched them with their…

Q: 11. Name the type of culture which is prepared by inoculating directly from the tissue of an…

A: The culture is a procedure that provides a favorable condition to the the organism for…

Q: 1. What color change do you observe in Part B of the experiment? In which of the test tubes did…

A: Proteins are made up of amino acid residues linked via a peptide bond. A peptide bond between two…

Q: 3. Describe the effects of the various antiseptics/disinfectants you used. Were they all equally…

A: # send questions one by one in the portal.  Antiseptics : It is a chemical or a substance that stops…