Biology Essays

The cell membrane consists of mostly phospholipids and proteins which gives the cell its selectively permeable nature. The function and permeability of the cell membrane depends on its whole structure. When destroyed, the permeability of the cell membrane is disrupted causing cellular contents to leak out. When cells are cut, …

In this experiment you will be estimating the osmolarity of potato cells by finding their change in weight in solutions of known molarity. The object is to find the molarity where the mass does not change. No net change in weight indicates that there has been no net gain or …

One of the most important ways to help threatened plants and animals survive is to protect their habitats permanently in national parks, nature reserves or wilderness areas. There they can live without too much interference from humans. It is also important to protect habitats outside reserves such as on farms …

Will believers in Intelligent Design be able to embrace the incredibly promising and innovative solutions outlined in Luke Bawazer’s Tedtalk while rejecting Darwin’s theory? Yes. One will be able to believe in intelligent Design while embracing Mr. Bawazer’s ideals. It is easy to see that Darwin’s theory is not longer …

Electrophoresis is a technique which uses an electric field to separate molecules, allowing for identification and characterization of the molecules. It is commonly used to separate nucleic acids and protein molecules of various sizes. To prepare the gel for electrophoresis the amount of agrose needed must be calculated. For a …

No one in this world is perfect; everyone has body flaws that people might not notice. The average person goes through the day without thinking about the body flaws they have, but some people can’t go one second without obsessing over a certain flaw on their body. This is what …

Based upon your results, is your bacteria sample a strict aerobe, strict anaerobe, facultative anaerobe, or microaerophile? Why? – Look at your results from OF Glucose and OF Glucose with oil test. How important is it to add the Kovac’s Reagent in the Indole Utilization test? What is responsible for …

Organelles & Illness – Imagine that you are part of a research team that specializes in diagnosing disorders associated with malfunctioning cellular organelles and structures. Medical doctors consult you to provide a cellular explanation for particularly difficult cases. You recently received the two patient histories outlined below – what is …

Step 1: Determine which GPCRs are associated with the peach scent. (3.5 pts) Insert the cDNA of all the olfactory GPCRs into E. coli and purify out all the olfactory GPCR proteins. For each GPCR protein, have one control reaction with just the GPCR, and one experimental reaction where the …

1. Describe the structure of DNA. It is a right handed double helix. It is made up of nucleotides that are bound to each other by covalent bonds. Nucleotides are abbreviated as A, G, C, and T. The abbreviated nucleotides stand for Adenine, Guanine, Cytosine, and Thymine (Simon, Reece, & …