Biology Essay Examples Page 53

Alcohol Alcohol (when used commonly refers to ethanol) is consumed widely around the world for numerous reasons. Its properties have been both praised and demonized. In humans it generally acts as a depressant with, conversely, mild stimulating effects of some parts of the brain. At low levels of consumption alcohol has minimal effects on a…

Questions: The main goal of a differential stain is to distinguish between gram-positive and gram-negative bacteria by utilizing distinct colors. Gram-positive bacteria will appear purple when stained, whereas gram-negative bacteria will appear pink. In contrast, a simple stain treats all microorganisms equally and enhances contrast. The key distinction between these staining techniques lies in their…

Importance of stereoisomers in a biological system Isomers are compounds that have the same molecular formula but different structural formulas. Stereoisomers are isomers that have the same sequence of bonded atoms, but they differ in their three dimensional orientation in space. [pic] shown above is an example of the two types of Stereoisomers; Enantiomers, which…

LAB 1 1. Describe the function of the following pieces of safety equipment and how each might be used: (10 points) a. Eye Wash (2 points) The eyewash fountain is used to rinse chemical splashes off the eyes. They are used by rinsing the eyes 15 to 30 minutes with water. b. Fire Blanket (2…

6 Abstract: This experiment attempts to answer the question of whether an increase in a succinate concentration (a component of the Krebs cycle) will lead to an increased rate of cellular respiration within a cell. We measured the amount of electrons given off by the succinate to fumerate redox reaction by using DPIP. DPIP is…

Grace Masters Woodlice Behavior Experiment Aim: To investigate the effect of light intensity on the behavior of woodlice (Porcellio scaber) in regards to their change in speed. Variables: VariableHow can it be controlled? (IV) – Light intensity – The light intensity will be controlled by the knob on the lamp throughout the experiment. In addition,…

Compare and contrast the use of light and electron microscopes in biological studies. Microscopes are laboratory equipment which are used to observe any matter that is too small to be seen by the naked eye. There are several types of microscopes – the two most common being the optical microscope, also known as a light…

Design an experiment in which you will investigate a digestive enzyme’s effect on digestion” Research Question: To determine the effect of enzyme concentration on the rate of digestion. This will be done by increasing the concentration of the enzyme diastase and investigate its effect on the rate of starch digestion. The rate will be determined…

Q. Does the Biological perspective in abnormal psychology make other perspectives obsolete? Answer with reference to one mental disorder of your choice. (35% of total module marks). Psychologists have been trying to understand mental illnesses, and many years ago, the biological perspective was the most popular due to its scientific nature. Schizophrenia – a chronic…

Tuberculosis ( TB ) is the taking cause of decease in the universe from a bacterial infective disease. The disease affects 1. 8 billion people/year which is equal to tierce of the full universe population. In the United States TB is on the diminution. In 2007 a sum of 13. 293 instances were reported. The…