This lab was conducted in order to show and analyze the way DNA is extracted. As I'm walking around in this lab, most of the questions have to do with focusing on the slides.
Water potential is used to sum up the differences in solute concentration and pressure to predict the direction water will diffuse in living plant tissues.
When water enters the plant cell, the membrane is pressed up against the cell wall and creates turgor pressure. Only the plant cells were together in a large group. This shows that the complexity of an organism is not necessarily related to its size.
Pressure potential may be positive, negative, or zero. The example protists were: They have all the organelles necessary for a variety of functions such as digestion, excretion, reproduction, respiration, and movement. The Cells lab write up is the most basic unit of life and knowing about it will help us answer many different questions.
Teachers' Lounge The purpose of this Cells lab write up is for students to use a microscope to get to see the differences between plant, animal, and bacterial cells.
In the class that wasn't ready, we made the lab write-up together, and I used question and answer as well as think alouds to help guide the students through the process with the support they needed. If you have a class struggling with behavior and in need of a tight structure, make sure that you turn so that your back is to the wall and your front is to the students.
This is a great way to reinforce the idea of community in class! Distilled water was initially in the cup and is predicted to stay in the cup. The DNA grouped rapidly, taking no longer than two to three minuets total before slowing down and seeming to stop grouping.
This pushes positive accountability in the classroom by setting listening and thinking as a classroom norm. Based on the observations in this lab, protists are very small yet highly complex.
Another strategy would be to create questions prior to introducing the video, and hold students accountable either as a class discussion, cold call post video, or in writing.
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.
Once you show one person at each group they are able to be an assistant teacher and help other students. In doing so, I gained useful microscopy skills such as making wet mount slides, finding the proper magnification for viewing, and drawing microscope observations with all the proper labels.
After completing the activity with figure 2, we were able to compare our predictions about the outcome to the actual results of the experiment. Then we discarded the used glucose test strip.
If someone knows about the cell and how it works they could find a way to counteract viruses and illnesses, thus creating medicine and a way to cure the virus or illness. 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.
I stated that all cells will be together in a large group, but now I realize that the statement was incorrect.
The movement of water across the cell membrane depends on the concentration of solutes on both sides of the cell membrane.
Bursaria Results All protists that were selected had features in common, but they all moved differently. Engage 3 minutes Learning Goal: The lab was intact successful for the group and I were able to extract a visible amount of DNA from the mixture.
What type of cells do you think are on this slide and why? When solute concentration increases, water potential decreases. There was really no source of error in this lab due to its simplicity.
We tied one end of the dialysis tubing to create a bag. All three protists had a nucleus, as expected, but the Paramecium had two nuclei, a micronucleus and a macronucleus. If we determine the molarity of the sucrose solution that will help produce equilibrium between the solution and the contents of the potato cell, we can determine solute potential: Molecules are in constant, random motion Brownian motion and if they collide with the membrane, they will rebound.
The oral groove is like a mouth, taking food in with the help of cilia, which direct and move the food inward. First, we poured mL of distilled water into a cup and added about 4 mL of IKI solution to the water and mixed well.
Aside from the actual cells, we were able to see air bubbles within both the onion skin cell slide and the cheek cell slide. Students have already written several labs in class.In this lab I learned about the structure and function of the smallest eukaryotic organisms, the unicellular protists.
Although very tiny, these organisms are very complex, housing all the necessary life tools in one single cell. Mrs. B's AP Biology.
Search this site. Home. Course Documents. Course Content. 1 Ecology. PowerPoints and Notes. Practicing Biology for Cells Unit.
Due day of test. Investigative Lab 4 Write-up Due Monday: See me if you need help on water potential problems. Allysha's e-Portfolio. Search this site. Home. Lab Notebook. and when water moves into the cell, the cell will swell and possibly burst.
Cell walls are present in plant cells which prevent the cell from bursting once it swells. Water potential is used to sum up the differences in.
Learn how to use a good format to properly write a lab report. If you are taking a biology course, you'll need to write biology lab reports.
Learn how to use a good format to properly write a lab report. How to Format a Biology Lab Report Share Flipboard Email Print Hero Images / Getty Images Thank you for signing up.
Follow Us. Lab 1 Osmosis & Diffusion Osmosis Lab Introduction: Cells have kinetic energy. This causes the molecules of the cell to move around and bump into each other.
Diffusion is one result of this molecular movement. Diffusion is the random movement of molecules from an area of higher concentration to areas of lower concentration. Osmosis. Lab Report for Cheek Cells. Uploaded by Lavleen Deol.
Related Interests. Vacuole; Cell (Biology) Lens (Optics) Field Of View; The purpose of this experiment is to determine and observe the difference between an animal cell (cheek cell) and a plant cell (onion cell). The size of the bunched up cells is still about 50 micrometers and it 5/5(1).Download