Polysaccharide

Question 1A: Compare and contrast the general structure of a virus and a bacterium. Bacteria and viruses both do not contain a DNA enclosing nucleus; however, these organisms differ greatly in the complexity of their structures. Generally a bacterium is encompassed within a semi-rigid cell wall made of peptidoglycan, which provides structural support. It is classified as gram positive if its cell wall is thick and stains purple when tested for identification. If its cell wall is thin and stains…

1. Describe what may occur if hepatotoxicity and nephrotoxicity occur as a result of drug use. Hepatotoxicity is when the liver detoxifies and metabolizes foreign chemicals in the blood. It can be damaged by drugs or their metabolic products. If liver cells are injured, enzymatic abnormalities usually occur which is when fatty liver deposits form, hepatitis occurs, and in the worst cases liver failure can result. Nephrotoxicity occurs when nephron tubules and/or filtration abilities of the…

1. Introduction This illustrated report will be concentrating on the digestive system and the detail of digestion, including mechanical and chemical digestion, extracellular and intracellular digestion. It will highlight how enzymes work within the digestive system, which ones and where they are produced. It will show the importance of metabolism and its two categories anabolism and catabolism, there will also be an illustration of how nutrients are processed during anabolism and catabolism. It…

ABSTRACT Elaeis guineensis is a species of palm generally called African oil palm, and it can reach the height of 20 m or more at maturity. The oil palm is major importance in Africa as a multi-purpose tree where it supplies medicines, foods and many other products to the local population. Elaeis guineensis is rapidly becoming one of the world's most planted plants, being grown especially for its oil-bearing seeds and fruits. Usually 23 kg is the average weight of each bunch but a bunch may up…

BIOMOLECULES It is from the foods we eat that we get the essential compounds that our body needs. These types of compounds are used by our body for energy and growth. In this chapter, you will learn about biomolecules and their functions in the human body. iEngage Nutrition Facts Objectives To examine nutrition facts from food labels To recognize the importance of knowing the food labels Materials food label paper pen Procedures 1. Examine carefully the nutrition facts of…

Chitin is the second most abundant natural polysaccharide consisting of β(1→ 4)-linked N-acetyl-D-glucosamine (GlcNAc) units in a linear form. Chitin is insoluble in water and mainly exists in two crystalline (α- and β-) forms. The α-chitin consists of sheets of tightly packed alternating parallel and antiparallel chains (1) and is abundant in the exoskeleton of arthropods, insects, fungi, and yeast cell walls. The chains are arranged in parallel orientation in β-chitin (2), which occurs less…

The effect of the BsrG1 restriction enzyme on Wild Type and Mutation 1 of E. coli DNA Introduction: What a lac operon is involved in the lactose metabolism of E. coli and it can only work when there is no glucose present to interfere with the lactose metabolism. (Khan Academy) E. coli chooses prefers glucose and other "better" sugars, so if any are present other than lactose the lac operon will not be expressed in the plasmid. (Khan Academy) A plasmid is an "independent, circular,…

Picture two young children; one fully and completely vaccinated and the other never having received any kind of vaccination at all. Unfortunately, both of these young children fall drastically ill from the same virus. Consequently, the child who had previously become vaccinated and took all preventative actions made a speedy and full recovery while the other child passed away due to complications obtained from the virus. What if that one child's life could have been saved if he or she had…

Chemical Aspects of Digestion Lab Report By Abdulelah Almutairi Animal Form and Function Lab, 03, 12:30 PM Instructor: Melanie Gustafso-Ropski – Lab Assistant: Corinna Monday March 9,2015 1. Part A • The enzyme used in this experiment is pancreatic lipase. The substrate for pancreatic lipase is lipids or triglycerides. Hydrolysis of triglycerides occurs in the duodenum and the PH rages are from 7.1 to 8.2. • Phenol red was used as a PH indicator of the samples.…

CRP was identified from patients with acute pneumococcal pneumonia at the Rockefeller Institute for Medical Research (Tillett and Francis, 1930), a name that reflects its reaction with the C-polysaccharide of Pneumococcus. This pentameric protein with MW 118 kDa has five non-covalently bonded and non-glycosylated identical subunits of 206 amino acids each to form a disk-shaped pentagon (Fig. 1). CRP has been proven as an early indicator of infectious or inflammatory conditions as well as a…