as myself. However‚ I would bet my top dollar that you have no clue how to make a peanut butter and jelly sandwich. You think you do? Alright well that is cool‚ but I am going to tell you how you are wrong. For starters we are going to need some ingredients/kitchenware. These ingredients are simple and can be found at literally any gas station or grocery store. You will need a loaf of bread‚ jelly (strawberry or grape)‚ crunchy peanut butter‚ skim milk‚ a tall cup‚ a butter knife‚ a plate‚ and a
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investigated compounds were dissolved in DMSO at 10 and 20 mg ml-1‚separately [19‚21‚25‚27‚34]. Nutrient agar was prepared‚ then sterilized in an autoclave and poured in sterile Petri plates. After cooling of nutrient ager in Petri plates‚ the studied organisms were grown on agar. After that‚ the sterili Paper discs of Whatman saturated with solution of investigated compounds were placed in the agar by working holes using a sterile crook borer. These Petri dishes were incubated for 24 h at 37oC [25]
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Diffusion In Agar Cubes Is Bigger Better? OR Is Smaller Smarter? Adapted from Flinn Scientific Publication No. 10110 Introduction: Diffusion is one of the very important processes by which substances such as nutrients‚ water‚ oxygen‚ and cellular wasted are transported between living cells and their environment. This activity will help you explore the relationship between diffusion and cell size by experimenting with model “cells.” In this experiment‚ you will use agar cubes to which
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Your Full Name: Lauren Sinay UMUC Biology 102/103 Lab 1: Introduction to Science INSTRUCTIONS: On your own and without assistance‚ complete this Lab 1 Answer Sheet electronically and submit it via the Assignments Folder by the date listed in the Course Schedule (under Syllabus). To conduct your laboratory exercises‚ use the Laboratory Manual located under Course Content. Read the introduction and the directions for each exercise/experiment carefully before completing the exercises/experiments
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the growth of oral bacteria. Each procedure consisted of three trials for each test subject. For procedure #1‚ saliva was collected from each test subject and then mixed in tubes containing melted nutrient agar. Each tube was labeled with the test subject#s initials and trial number. The agar
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grew in many different ways. There were many different results in every bacteria that was examined‚ no bacteria looked alike towards one another. The bacteria in order to be produced it need to be put nutrient agar that would nourish it. The bacteria were inoculated into the nutrient agar so it can grow to be observed to view the results. Introduction Bacteria have been always around but us humans can’t see it with naked eye. Bacteria can be both harmful and good depending what type of bacteria
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Jelly Optics Investigatory Project in Physics Chapter 1 The Problem and its Background Introduction When light hits a boundary between two substances‚ it often bends. This is called refraction. Refraction is the bending of a wave when it enters a medium where its speed is different. The refraction of light when it passes from a fast medium to a slow medium bends the light ray toward the normal to the boundary between the two media. Refraction is responsible for image formation by lenses
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Effect of Molecular Weight on the Rate of Diffusion of Potassium permanganate (KMNO4)‚ Potassium dichromate (K2Cr2O7) and Methylene blue ¹ ABSTRACT The effect of molecular weight on the rate of diffusion was determined using the Agar-water Gel Test. One drop of potassium permanganate (KMNO4)‚ potassium dichromate (K2Cr2O7) and methylene blue were used. Each substance has a respective molecular weight of 158 g/mol‚ 294g/mol and 374 g/mol. The diameters (in millimeter) were measured
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Project Title: Examination of bacterial content of sea water samples from selected sites in South East England Introduction Over the past few years coastal beaches across the UK has seen lavished with recognition for their cleanliness‚ by sections of the media and various organisarions. Majority of these beaches have been awarded the Blue flag award in recognition for meeting set criteria on various standard including cleanliness‚ water quality‚ environmental management and environmental education
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Lab Report - Microbes Aim: To investigate four areas of the school and to find out which of the four have the most microbes. Areas to Sample: 1. Girl’s locker room (Senior school) 2. Girl’s locker room (Elementary school) 3. Boy’s locker room (Senior school) 4. Boy’s locker room (Elementary school) Hypothesis: We predict that the boy’s locker room in the senior school will have the most microbes. First of all‚ there are more people using our locker rooms in the Senior School
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