Bio 101 Essay

This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor.

The instant the disc hit the bottom, a timer was started. The time measured was that from the time the disc reached the bottom of the beaker until it touched the surface of the hydrogen peroxide. This measurement is that of the activity rate of the enzyme. Finally the procedure was carried out for a second trial.

Our class of twelve was subdivided into six groups of two. Each group used a light microscope to observe thirteen slides of organic materials (listed with the appended images). The slides were dyed one or two colors to show different parts of the organisms or cells. With each slide we started our observations on 40x magnification and moved up, through 100x, to 400x magnification. After recording what I saw under the microscopes, I researched what I had seen, and collected images for comparison, which appear in the appendix.

In this lab, I learned the way osmosis and diffusion work in nature. The carrot and the salt water was a decent representation of the process. By observing the carrots, the swelling or shrinking of cells during diffusion and osmosis was illustrated and better understood.

To perform the first part of the lab it required: spinach leaves, a crucible, pipette, acetone, a beaker and chromatography paper. The chromatography paper was rolled up into a cylinder and stapled to hold it in place. Then a pencil was used to draw a line about 1 cm from the bottom of the paper. <p>

To begin, this is my first time doing an experiment and a lab report for biology’s class. Although, it was a little hard at the beginning, my team and I got the hang of it and we finished it on time. It was actually kind of fun.

My room soon turned into a half-fledge laboratory: the premise included a mini-library carefully filed with hundreds of readings, a stack of ten Petri dishes, a 40 dollar microscope, and a nicely heated incubator. During the weekends, I would spend hours tinkering with equipment at the local science store; consequently, they were added to my wish list. On the weekdays, I would analyze my growing cultures and record their data into a large archive. Until this day, I still possess the data of my first experimentation.

Keith, Edward, Charles Messing, and Emily Schmitt. Laboratory Exercises in Biology. Second. Dubuque, IA: Kendall Hunt,

This exercise allowed us to sharpen our skills in preparing slides that way in future investigations, it will become second nature. Another purpose of this investigation, was to physically observe the difference between plant cells, animal cells and commercial slides, which ultimately, helped us distinguish how different each slide and cell

For part one of the State Lab we prepared to build a model cell using a false membrane to test diffusion which is the process by which the collisions between molecules cause them to separate out for simple sugar which is glucose and starch. The first thing we did was create a cell and we did this by first taking a dialysis tube and put it under warm tap water for a few minutes until it can gently be pull out of the end. Then, when we get it open we seal on part of the the tube by folding it over and with a piece of string. After, add ¼ glucose solution then add enough starch solution halfway through the tube. After all of the solutions are then added lock the other end of the tube by tying it with another pair of string. We then got a beaker and filled it up with water and added starch

Hand out from the Natural Science Establishment, six dialysis tubing, six plastic cups, distilled water, 0.2 M, 0.4 M, 0.6 M, 0.8 M, and 1.0 M samples of a sucrose solution, paper towels, and a scale.

The materials used for the experiment include: hotplate, temperature probe, data-collection interface, ring stand, two utility clamps, paper towels, mass scale, cupcake paper, scoopula, graduated cylinder, stirring rod, beaker, 2.415g of table salt (NaCl,) 7.46g of glucose (C6H12O6,) 400.00ml of distilled water (H2O)

Our environment is full of a variety of infectious microorganisms that cause disease known as microbes. Bacteria, viruses, protozoa, multicellular parasites and fungi qualify as microbes which cause disease, and if left to multiply unchecked, will eventually kill their host. Most infections in normal, healthy individuals are shot-lived leaving little or no damage which is due to the immune system which combats infectious agents. The immune system is a complex system of organs and processes of the body that provide resistance to infection and has a primary purpose of identifying foreign substances known as antigens. Antigens stimulate immune responses through the production of antibodies and the immune system provides protection from infectious diseases by noting them as foreign, killer microbes and supplying these antibodies.[1] Microorganisms come in many different forms and because of this, a variety of immune responses are required to fight against each type of infection. Sometimes the body’s natural form of defence is not enough to counteract the effect of pathogens, and vaccinations are required. Vaccines work by working with the body’s natural defence system to reduce the risk of infections largely and develop immunity; [2] however, despite the science emerging to protect humans from potentially deadly

Imagine this: you step outside and feel the barren, rough, red Earth beneath your feet. There’s not a single plant in sight—no rustling of the leaves, no mighty towering trees to block the severe winds, and the scorching heat of the sun searing upon your face because there’s no shade. And when you take a whiff of air, you feel nothing filling up the space inside your lungs, liberating your body’s activities. What’s wrong with this picture? It’s not possible, of course. Even though plants aren’t the building blocks of life, they’re pretty close and without them, most of life wouldn’t exist—YOU wouldn’t exist. In my research, I will go in-depth about biodiversity—which defines as a quantity of the relative diversity among

La Arquitectura Bioclimática es una arquitectura que se integra al medio ambiente, adaptandose al entorno y cada uno de sus elementos, es sensible al impacto que provoca en el, intenta minimizar el consumo energético y asi, la contaminación ambiental.