Smear Lab Report
Different types of Cells contain different types of organelles which give each cell its specific functions. For example, plant cells have different structure from blood cells and bacteria. In fact, different types of stain are used in order to observe different cell organelles under a microscope. For example, safranine is a type of stain which may be used on an onion epidermis or in gram staining which may help us to observe cell structure and types. Moreover, some smears needs differential stains in order to be observed such as may-grunwarld-giemsa stain which is used on blood smear. On the other hand, stains may be used to differentiate between type of bacteria present in a smear. However, some cell doesn’t need to be stained in order to be well observed such as cell organisms found in pond water. …show more content…
Fist experiment was conducted on an Onion epidermis which allows us to understand the importance of staining by differentiating between stained and unstained epidermis and to visualize different cell components such as the nucleus, and the cytoplasm…. While the aim of experiment 2 is to become able to differentiate, examine, and count different types of blood cells found in a smear. Experiment 3 goal is to become able to differentiate between gram positive and negative bacteria. And finally, experiment 4 was carried in order to examine and differentiate between different organisms or protozoa according to shape, size, and
Unknown Lab Report
1444 Words | 6 PagesUnknown Lab Report Unknown # 25 By: Jenna Riordan March 19, 2018 Bio 2843 1. Introduction Microbiology is the study of microorganisms found in all different environments throughout Earth, from the hot thermal vents at the bottom of the ocean to the ice at the top of a mountain.
Rhubarb Osmosis Lab Report
1127 Words | 5 PagesObtain a small sample of the red epidermal cells from the stalk of the rhubarb by carefully peeling away the layer with forceps. Prepare a wet mount slide of the rhubarb tissue in distilled water only. View your slide under low power on your microscope, and then switch to high power. Draw a diagram of the field of view, and label.
Tn 4351 Unit 5 Lab Report
506 Words | 3 PagesTn 4351 was originally isolated from bacteroides fragilis [30] . The transposon was successfully introduced into Cytophaga succinicans, Flavobacterium meningosepticum, Flexibacter canadiansis, Flexibacter strain SFI and Sporocytophaga myxococcoides by conjugation [25]. Tn 4351carries two antibiotic resistance gene. One of the codes for resistance to erythromycin and clindamycin which is expressed in bactroides but not in E.Coli. The other gene codes for resistance in tetracycline and is expressed in aerobically grpwn E. coli, but not in anaerobically grpwn E. coli or in bacteroides.
Biology Unit 9
313 Words | 2 PagesElijah Brycth B. Jarlos IX-Argon 1. Multicellularity is a condition of an organism to have multicellular cells. An example of a organism who has multicellular cells are plants, animals, and humans. The main reason of why scientists have a hard time finding a good set of existing organisms to compare. Is neither the first set of organisms which is being compared is dying as fast as the second specimen is being examined or they just can’t find the right species.
Paper Chromatography Lab Report
767 Words | 4 PagesLeah Romero 10/30/2017 Conclusion Lab 3 Chem 102L In lab 3, fundamentals of chromatography, the purpose was to examine how components of mixtures can be separated by taking advantage of different in physical properties. A huge process in this lab was paper chromatography, which was used to isolate food dyes that are found in different drink mixes. The different chromatograms of FD&C dyes were compared to identify which dyes are present in each of the mixes.
Paper Towel Lab Report
802 Words | 4 PagesUtilizing the method that the experimenters have come up with, the procedure isolates the variable being tested, which is the paper towel brand. By not changing other aspects of the procedure, other factors have a lower chance of affecting the accurate results of the answer to the main question. Additionally, the method is a quick and simple experiment, causing no use of excessive time than the provided duration. Within the first minutes of the experiment, the experimenters and the advisor realized that the method did not really provide accurate results due to merely estimating the numbers without the use of a graduated cylinder. Changing that aspect of the procedure by using a graduated cylinder to measure the amounts of water instead helped
Food Vacuoles Lab Report
502 Words | 3 PagesWe then obsevered the two slides for number of cells as well as for food vacuoles inside a cell using a microscope at times of 0,5,10,20, and 30 minutes. Results The following graphs show the results of this experiment. The tetrahymena sample that was introduced to concentrated tobacco had a lower cell/vacuole ratio than the tetrahymena sample that was not exposed to
Unit 3 Lab 3 Dna Extraction And Visualization
1241 Words | 5 PagesLab 3 – DNA extraction and visualization Journal -Madhu Thalari. 1.Describe the laboratory exercise as you interpreted it.? Ans: This lab has given me methods to extrct DNA from both plant cells and animal cells. The main steps that are followed in both methods made me understand the reasons behind them. In order to extract DNA we need break the barriers(cell wall and cellmembrane), remove water, protiens and other unwanted material, make sure that the chemical we used should not damage DNA that we need and add flouroscent material to visualize the DNA.
Lab Report Spectrophotometry Lab
851 Words | 4 PagesJaspreet Singh Professor Paratore Biology 1 November 1, 2014 Spectrophotometry Identifying Solutes and Determining Their Concentration Statement of the Exercise or of the Problem The purpose of the lab experiment was to attain the following objectives: • Learning to Operate the Spectrophotometer • Construct absorption spectra for cobalt chloride and chlorophyll. Hypothesis If greater and higher concentrations of cobalt chloride are added to each solution then greater amounts of light would be absorbed by each solution. Thus a liner relationship will result in which the absorbance of a substance would be proportional to its concentration, which will be depicted, in a linear graph.
Garlic Root Tip Lab Report
1393 Words | 6 PagesIntroduction: This lab report outlines an experiment on the observation of mitosis in the cells of garlic root tips. Mitosis simply put is the division of a nucleus producing two daughter cells with the same number of chromosomes as the parent cell. Miotic cell division consists of five stages: Interphase, Prophase, Metaphase, Anaphase and Telophase. The purpose of this experimet was to identify and observe cells within each stage of mitosis using garlic root tip cells.
Sex Hormone Lab Report
470 Words | 2 PagesIntroduction Gender is the state of being a male or a female. The differences between the two categories are known to lie within the reproductive system and certain physical attributes. However, these differences are not limited to genitalia and physical features. The presence of testosterone (male sex hormone) or estrogen (female sex hormone) affects metabolism, behavior, the functioning of organ systems, and the development of various diseases.
Arginase Lab Report
1437 Words | 6 PagesINTRODUCTION: Arginase is an enzyme- enzymes are biological catalyst which drives a reaction at the speed of life. Arginase is a hydrolase, hydrolases catalyze hydrolysis reactions, this is determined via the E.C number (Nelson and Cox 2008). Arginase has the EC number is 3.5.3.1 (Schomburg 2015). The enzyme ‘commission number’ is the arithmetical classification that is used for enzymes which indicates the chemical reaction they catalyze.
Biochemical Test Lab Report
1371 Words | 6 PagesBiochemical tests are the tests used for the identification of bacterial species based on the differences in the biochemical activities of different bacteria. Bacterial physiology differs from one species to the other. These differences in carbohydrate metabolism, protein metabolism, fat metabolism, production of certain enzymes and ability to utilize a particular compound help them to be identified by the biochemical tests. Gram’s stain was originally devised by histologist Hans Christian Gram in 1884. Gram-positive bacteria stain purple, while Gram-negative bacteria stain pink when subjected to Gram staining.
Cell Viability Test Lab Report
1000 Words | 4 PagesIt also better to ensure that the materials like hemocytometer and pipettes are sterilized and clean so that there would be lesser or no artifacts would be seen under the microscope. The researcher was to use trypan blue exclusion method to test for cell viability, observe the non-viable and viable cells, and was able to have a cell count using the
More about Smear Lab Report
Unknown Lab Report
1444 Words | 6 PagesRhubarb Osmosis Lab Report
1127 Words | 5 PagesTn 4351 Unit 5 Lab Report
506 Words | 3 PagesBiology Unit 9
313 Words | 2 PagesNt1310 Unit 1 Lab Report
1125 Words | 5 PagesPaper Chromatography Lab Report
767 Words | 4 PagesPaper Towel Lab Report
802 Words | 4 PagesFood Vacuoles Lab Report
502 Words | 3 PagesUnit 3 Lab 3 Dna Extraction And Visualization
1241 Words | 5 PagesLab Report Spectrophotometry Lab
851 Words | 4 PagesGarlic Root Tip Lab Report
1393 Words | 6 PagesSex Hormone Lab Report
470 Words | 2 PagesArginase Lab Report
1437 Words | 6 PagesBiochemical Test Lab Report
1371 Words | 6 PagesCell Viability Test Lab Report
1000 Words | 4 Pages