Lab 1 carbohydrates

Carbohydrate counting, also called carb counting, is a meal planning tool for people with type 1 or type 2 diabetes. Carbohydrate counting involves keeping track of the amount of carbohydrate in the foods you eat each day. Carbohydrates are one of the main nutrients found in food and drinks. Protein and fat are the other main nutrients.

Lab 1 carbohydrates

Cellulose fibers and molecular structure of cellulose. Cellulose is made of glucose monomers in the beta form, and this results in a chain where every other monomer is flipped upside down relative to its neighbors. Image modified from OpenStax Biology.

As shown in the figure above, every other glucose monomer in the chain is flipped over in relation to its neighbors, and this results in long, straight, non-helical chains of cellulose.

This gives cellulose its rigidity and high tensile strength, which are important to plant cells. However, some herbivores, such as cows, koalas, buffalos, and horses, have specialized microbes that help them process cellulose. These microbes live in the digestive tract and break cellulose down into glucose monomers that can be used by the animal.

Wood-chewing termites also break down cellulose with the help of microorganisms that live in their guts. Image of a bee. The bee's exoskeleton hard outer shell contains chitin, which is made out of modified glucose units that have a nitrogenous functional group attached to them.

Cellulose is specific to plants, but polysaccharides also play an important structural role in non-plant species. For instance, arthropods such as insects and crustaceans have a hard external skeleton, called the exoskeleton, which protects their softer internal body parts.

This exoskeleton is made of the macromolecule chitin, which resembles cellulose but is made out of modified glucose units that bear a nitrogen-containing functional group.

Chitin is also a major component of the cell walls of fungi, which are neither animals nor plants but form a kingdom of their own. Download the original article for free at http: Department of Agriculture, Agricultural Research Service. In USDA national nutrient database for standard reference release Sugar isomers have structural differences.

In Biology 10th ed.

Lab 1: Diffusion and Osmosis | Spurthi's AP Biology Notebook

Retrieved July 24, from Wikipedia: In Campbell biology 10th ed. The science of biology 7th ed. In Pathophysiology of the digestive system small intestine. Retrieved July 24, from Wikibooks: Polysaccharides serve as energy stores or structural materials. Energy storage and structural molecules.Carbohydrates appear to consist of “hydrates” of carbon.

Lab 1 carbohydrates

However, as you will learn in this lab and through readings, carbohydrates are not hydrates of carbon but rather molecules that contain a 1 to 2 to 1 ratio of C to H to O. p.1 Lab # Digestive Physiology Background In order for the nutrients in food to be absorbed, they must first be broken down into particles Chemical Digestion of Carbohydrates.

Carbohydrates are the first type of biomolecule to be chemically digested in the digestive tract.

Lab 1 carbohydrates

Classification and Occurrence of Carbohydrates specific names, such as aldohexose or ketohexose, to denote the kind of carbonyl compound they represent. For example, an aldopentose is a five-carbon sugar. Latest lab results after 1 year of Low Carb submitted 5 years ago by tsdguy There's always a lot of folks interested in lab results so I thought I'd post a few from my recent lab test after about 1 year of low-carb (sorry, I don't keto but I do eat about 40g or less per day).

carbohydrates - molecules w/ carbon, hydrogen, oxygen in ratio empirical formula - (CH2O)n ; releases energy from C-H bonds when oxidized; sugars - most important energy-storage carbohydrate ; monosaccharides - simplest of the carbohydrates.

can contain as few as 3 carbon, but most contain 6. Exercise 1: Dissolved oxygen is oxygen that is trapped in a fluid, such as virtually every living organism requires oxygen to survive, it is a necessary component of water systems such as streams, lakes and rivers in order to support aquatic life.

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