Transcript of 02.02 Early Cells 1- how much did the size of the egg change? time(hrs) circumference(cm) 0 5cm24 6cm48…
The purpose of this lab is to examine cross sections from the leaves of C3 and C4 plants and to determine the morphological differences between them while relating those differences to their metabolism. In C3 plants the carbon dioxide is first incorporated into a 3-carbon compound. Their stomata are open during the day and photosynthesis takes place throughout the mesophyll cells. In comparison C4 plants, the CO2 is first incorporated into a 4-carbon compound. Their stomata are open during the day and photosynthesis takes place within the inner cells.…
Procedure 1- Set up the DAQ to output port 2 to send a binary data. 2- Run the LabView in continues mode, change the numerical input on the control panel, and observe the LEDs on the terminal block between (PB0- PB7).…
Materials. Numerous substances in the experiment were used. The most frequently used was the unknown due to the need to test its physical and chemical qualities. When a solution of the unknown was made, 1.000 g of the unknown and 1.0 mL of water was used to make it. To test for the possible ions, 1.0 mL of silver nitrate and 1.0 mL of nitric acid were used for the ion test.…
R.C. 5.9 Mathematics (Mobile Infant) Activity: “Stack Them Up” Materials: Stacking blocks, nesting cups, measuring cups Infants are continually growing in all areas of development. In this activity, the goal is to get the infant to stack their blocks or cups. The teacher would have the child sit on the floor or at a table with their toys.…
The focus of this lab was to identify an unknown organism based on its characteristics and the results from each of the tests. There will be various of test to choose from in order to identify the unknown organism, which will eliminate numerous possibilities and narrow it down to one. All the fundamental skills that we have learned and practiced in the lab will be used to perform on our unknown such as aseptic technique, microscopic examination, the use of differential media, and determining if it’s positive or negative. Performing aseptic techniques is the most crucial step that requires the utilizing of transferring, inoculating, and storing bacterial cultures and media. Aseptic technique is defined as procedures that prevent contamination…
An unknown sample #18 was obtained on November 6, 2017. The sample came in a glass test tube with a cotton swab that contain the unknown sample. To find the identity of the unknown sample, we had to conduct several biochemical tests to eliminate and narrow down possible organisms that fit the biochemical description to accurately identify our unknown organism of interest. These biochemical tests provided insight on the physical color retention of our unknown sample, and through’s the unknown organism’s ability to break down tested compounds to determine if it had the corresponding enzyme that would allow it to do so. The testing of unknown organisms to accurately discover its identity is crucial in the field of health science.…
Following the Ways of the Scientific Method The scientists solved the Elkhorn Coral mystery using the scientific method by following each step of the method to come to a conclusion as to what is killing the coral. The followed the steps precisely so that would not make any errors during their trials. They started with the first step of the scientific method, making an observation.…
Telophase/cytokinesis occurs when there is no longer a mother/father pair together, After the completion of meiosis I, the cells are no longer diploid cells, but rather haploid cells. Meiosis II also has four phases including prophase II, metaphase II, anaphase II, and telophase II/ cytokinesis. Prophase II occurs when spindle fibers reform and attach to the centromeres. Metaphase II consist of the chromosomes lining up to prepare for the division of centromeres in the next phase.…
Discussed in Chapter 17 is the cell cycle. The cell cycle is when the cell is replicated and divided. The cell cycle functions comparable to set of sequences in a control system. This control system behaves like switches with many backup processes and qualities allowing the cell cycle to operate effectively and efficiently. During the cell cycle, four stages occur known as G1 phase, S phase, G2 phase, & M phase.…
Brandon Ugbesia 9/24/2015 Steps and Procedures 1. Blend a 120 g sample of each fruit separately a in a blender with about 50 mL of distilled water. Strain any extra pulp with a cheesecloth. You should have at least around 120 ml of substance. 2.…
Introduction Subcellular fractionation is when the cellular components separate due to ascending centrifugation speeds. Different cellular components can be separated by densities to form a pellet or supernatant after each centrifugation. This process is used to separate nuclei and mitochondria. Nuclei is a very dense organelle in the center of the cell coordinating the cell’s actions: growth, metabolism, protein synthesis, reproduction. The nuclei also will pellet after the 1st low speed of the centrifugation, which can be seen under a microscope.…
In this experiment, a SDS-PAGE gel was used to analyze the protein samples from the MBP-AP and WT-AP experiments. The samples are then referenced to the ladder to determine the molecular weight of the MBP-AP and WT-AP proteins. Then the UV absorbance of the two proteins from 240 nm to 340 nm is determined using a nanovolume cuvette. The absorbance at 280 nm was then used in conjunction with data from previous experiments to determine the concentration of the MBP-AP and WT-AP protein samples. Results of experiments showed that the SDS-PAGE gel yielded expect bands and the approximate molecular weight of wild type alkaline phosphatase and maltose binding protein-alkaline phosphatase is 49 kDa and 95 kDa, respectively.…
Preparation for Cell Lysis Obtain the mammalian expression vector for homo sapien ESR2 from Addgene. Assemble the vector to code for the proteins snail, slug and twist. Transfect HEK293 cells with the modified plasmids in petri dishes. Allow the cells to grow for 1-2 days so they will express the proteins. Transfer the culture medium to a centrifuge tube to separate it from the cells.…
After interphase, chromatin in the nucleus starts to contract in the phase known as prophase. Centrioles start moving to polar ends of the cell and fibrous extensions form from the centromeres, some of which will traverse the cell and will constitute the mitotic spindle. Immediately after prophase and prior to metaphase, the cell’s membrane disbands and proteins begin to latch onto the centromeres. This forms the basis for the kinetochores. Microtubules begin to attach at the kinetochores and…