Contact Us Alcoholic fermentation uses enzymes to convert glucose into ATP which the cell can use to do work in the absence of oxygen. Alcohol and carbon dioxide are also produced in this reaction.
The red blood cells would increase in size because water is moving from the area of higher water potential the distilled water to the area of lower water potential the red blood cells until dynamic equilibrium is reached.
Lab 1E Questions 1 After preparing a wet mount slide, I have observed the onion cells under magnification and they appear to be small, empty boxes pushed closely together.
Lab 1A — The data collected in this lab experiment did not seem to contain any inconsistencies, so therefore no human error is detected. Lab 1B — In this lab experiment, the data seems to be compliant with the data collected by the other lab groups, so no human error was thought to have happened.
Lab 1C — There was some discrepancy in this experiment in the 1. The data decreases consistently until the 1. Some mistakes that could have taken place are miscalculations in initial and final masses or problems with the molarity of the solution itself.
Lab 1D — In this part of the lab, only calculations were made, so no human error probably occurred during this time.
Lab 1E — In part 1E, after adding the NaCl solution to the onion cells, the cells should have reduced in size, but no reaction took place.
This may have occurred in part because the onion itself was already dried out and dehydrated, or while the onion was being looked at through the microscope, the heat from it may have caused the cells to loose water. During the experiment conducted in Lab 1A, the results and data collected make it possible to conclude that glucose and Iodine Potassium Iodide can pass through a selectively permeable membrane and will if the concentrations on either side are not equal.
In Lab 1B, it can be concluded that sucrose cannot pass over a selectively permeable membrane, but instead water molecules will move across the membrane to the area of lower water potential to reach dynamic equilibrium.
Lab 1C provided information that helps to conclude that potatoes do contain sucrose molecules. This can be stated because the cores took in water while they were emerged in the distilled water.
This means they had a lower water potential and higher solute potential than the distilled water. The solute potential is equal to about a 0. During Lab 1D calculations were made and questions were answered to help give a better understanding of water and solute potential.
If the onion cell experiment in part 1E of the lab would have produced correct results, conclusions could have been made. It is thought that the onion cells would have plasmolyzed due to the addition of NaCl to the cells.
A virtual lab has the look and feel of a hands-on lab. Content and design factors are carefully considered, in order to achieve a high degree of verisimilitude, the quality of realism, in every virtual lab K 12 creates. Here is an example of a Virtual Lab Report before a final identity has been determined. The "identified unknown"refers to the identity the student provides following testing. The "assigned unknown" refers to the microbe assigned to the student by the instructor or selected by the software. The Lizard Evolution Virtual Lab applies central concepts and vocabulary to a real-life scenario to provide students an experience in doing real science. This is an excellent resource to apply major content topics and critical .
This shows how the onion cells had high water potential and moved to the area outside the cell with lower water potential. Then, after adding water back to the cells, water would have moved back into the cells increasing turgor pressure. The water potential played an enormous role in each part of this lab.
Since water moves areas of high water potential to areas of low water potential, reactions took place in each part resulting in different conclusions being derived from them. Water potential was a key element in each part of the experiment. In plant and animal cells, loss or gain of water can have different effects.
In a plant cell, it is ideal to have an isotonic solution. If the solution is hypertonic, the cell will shrivel from lack of water intake. Inversely, if the solution is hypotonic the cell could take in too much water and the cell will lyse and break open.
For a plant cell, the ideal solution is a hypotonic solution because the cell takes in water increasing turgor pressure which keeps the cells tightly packed and keep their shape.
If the solution is hypertonic, the cell will plasmolyze and died from lack of water. In an isotonic solution, the plant cell does not have enough turgor pressure to keep is shape.In OSHA estimated that more than million workers in more than , hospitals, homeless shelters, long-term care facilities for the elderly, detention facilities, certain laboratories and other work settings have a high risk of TB infection.
Bacterial Identification Virtual Lab: A Lab Report Question 1: Overall Purpose of the Exercise The overall purpose of this laboratory exercise to identify a bacteria sample based on their DNA sequences. Third lab in a series on identifying unknown bacteria.
Students learn how to create controls showing various bacteria plated on MacConkeys, Mannitol Salt, Blood Agar & Tryptic Soy regardbouddhiste.comts collect and interpret samples of normal flora from their own bodies.
Here is an example of a Virtual Lab Report before a final identity has been determined. The "identified unknown"refers to the identity the student provides following testing. The "assigned unknown" refers to the microbe assigned to the student by the instructor or selected by the software.
The MIT Media Lab is an antidisciplinary research laboratory at the Massachusetts Institute of Technology, growing out of MIT's Architecture Machine Group in the School of regardbouddhiste.com research does not restrict to fixed academic disciplines, but draws from technology, media, science, art and design.
As of , Media Lab's research groups include neurobiology, biologically inspired. Lab reports are an essential part of all laboratory courses and usually a significant part of your grade. If your instructor gives you an outline for how to write a lab report, use that. Some instructors require the lab report be included in a lab notebook, while others will request a separate.