The cell wall gives the cell structure and so do the beams of the stadium. 3. Mitochondria - The mitochondria in a cell is like the crowd at a baseball game. The mitochondria gives the cell energy just like the crowd does at a baseball game. The crowd gets the players pumped up by cheering and yelling.
Rationale The cell membrane, also called the plasma membrane is found in all cells and separates the extracellular side of the cell from the cytosolic side (Cell membrane (plasma membrane), 2023). The purpose of the cell membrane is to communicate with the cell’s external environment, to contain the cell’s contents and to control the transport of molecules in and out of the cell. Diffusion is the passive movement of molecules from an area of high to low concentration.
In this three-week long experiment conducted in the Bio 13 Lab, we were able to analyze a single nucleotide polymorphism (SNP) in our own genomic DNA and then determine our genotype at this specific SNP. In week one, we extracted genomic DNA from our cheek cells with swabs and prepared our DNA for PCR (Polymerase Chain Reaction) that would amplify the region with the intended SNP of interest. After one week and after the PCR was run outside of the lab section, the resulting PCR product was purified and treated with restriction enzyme Ahdl in order to prepare for the final analysis of our genotypes. In the third and final week of the project, we analyzed our PCR products by means of agarose gel electrophoresis. By the conclusion of the experiment, we had completed the analysis at the SNP of interest and determined our genotypes for this SNP.
Name: Avishak Deb Roy Partners: Leevell Penn, Varugh, Butler Bio 101 Lab Report #1 02.22.2018 Swimming speed of paramecium tetraurelia in different levels of treatment. Introduction Paramecia is a unicellular Protista which are naturally found in aquatic habitats. It is easily cultured in the laboratory. It is oblong shaped and covered with short hairy structure called cilia. Paramecia does not pose any health or ethical concerns and the population can be maintained if there is a food source such as Enterobacter (Biological Foundation 7).
Organelles as organism is from The Lives of a cell authored by Lewis Thomas. Thomas uses a unique writing style that is very recognizable and different from the others. This helps us to appreciate our diversity as human beings demonstrated by our abilities to write differently. As a reader one is able to form an image of who Thomas is by how he expresses his feelings and attitudes. When this text was written a lot of people, mostly scientists, thought and had knowledge of different things than they do now.
Even though we cannot see cells without a microscope, they are the basic unit of life and they exhibit all of the characteristics of living organisms. They can exist individually, as do bacteria, or they may work together, taking on specialized tasks to create a more complex organism. However, all living organisms share certain characteristics, which are discussed below. Cells are made of cytoplasm.
Research is very significant, and can not be done without the use of cells and tissues. It is very critical to find cells that can be tested on, and once these cells are found, they are vital to keep.
To begin, in this lab we studied the structures of leaves under a microscope. A leaf is best described as a major photosynthetic organ of green plants. Plants carry out the process of photosynthesis to convert carbon dioxide and water into oxygen and glucose for usable energy. This can be represented in a general equation which is 6CO2 + H2O -------> (sunlight and chlorophyll) C6 H12 O6 +6O2. Initially, the leaf is protected by the upper and lower epidermis as well as the cuticle.
ST Report In the experiment, the problem was the contaminants that were affecting the quality of the water samples. To fix this issue, three scientists had to determine the contaminants that were present in the samples. One sample was from the school sink and the second sample was from an unknown source. The scientists conducted many tests to figure out what pollutants were present in the water.
The cell membrane regulates the deoxyribonucleic acid, enzymes, and it builds a pathways for any reaction such as metabolic. When waste products are present the cell membrane gets rid of it and the cell membrane allows important things inside . A great example of what the cell membrane allows in or out is water and oxygen. Specific molecules are only made to enter the cell which is also called semipermeable. Molecules can be passed by active transport or either passive transport.
A cell is like the white house,It has many areas that work differently and have their own job’s to do just like a cell itself . The gates of the white house can be known as the cell wall because the gates surround the white house protecting it from bad things or people who shouldn’t go into the area or premassis. There are people who make things such as clothing or tools inside the white house so this area can act as the smooth endoplasmic reticulum,as for the rough endoplasmic reticulum,the doors can be referred to this because the doors only let certain people into the white house such as the president and his family,the security guard’s because they need to protect the area from bad people and the senators to discuss their work.
For eukaryotic cells, it has been believed that their is a succession of different CDK’s that are needed in different stages of the cell cycle. An example of this if in animal cells, there appears to be at least 3 CDK proteins and several different cyclins that operate just at G1, the first growth phase. The multiple CDKs and substrates are the driving factor behind cells going through the cell cycle and mitosis. Yeast are single-celled organisms that are eukaryotes since they have a nucleus where their genetic material is stored. Fission yeast have challenged this model since four CDK-cyclin complexes were replaced by one CDk-cyclin complex, which was composed of Cdc13 cyclin and Cdc2.
One of the roles of a membrane is to is regulate what goes in and out of the cell. There are various types of membrane transporters depending on the substance that is being transported. Active transporters usually transport small molecules such as ions. These transporters are driven by ATP. It moves substances against the concentration gradient.
The effects of alcohol on Biological Membranes. Introduction In this experiment it will be analysed the damage alcohols can have on biological membranes. Membranes are made up of lipids and proteins. Membranes usually help maintain the balance in a cell as it holds all the cellular materials.
Experiment 3: Cell Viability Testing and Counting with Trypan Blue Exclusion Method Anna Coretta R. Santos I. Introduction Cell viability assay plays a crucial role is in the cells of the cell culture. This assay can be used to identify the relationship of cell count from the cell’s behavior (Stoddart 2011). This test help researchers to determine the number of viable and non-viable cells in a cell culture. This assay helps in estimating the cell count of a cell culture and to determine if there is sufficient amount of viable cells in the cell culture that a person will use for future research (Riss et al. 2013).
