Full Cream Milk Lab Report

* By using the dropper and measuring cylinder, 7 ml sodium carbonate solution was added to the test tube

The liver functions in fat metabolism to control the amount of glucose, amino acids, and iron that is released into the blood.

Bile salts aid digestive enzymes. They break down fat globules into smaller droplets and enhance absorption. The Cheetos, in the form of chyme, are now traveling through the small intestine. In the small intestine, sucrase, maltase, and lactase split the double sugars into simple sugars, and

Bile is a brownish bitter alkaline fluid produced by the liver and made by the hepatocytes from water, bile salts, bile pigments cholesterol and phospholipids and stored in the gall bladder. Bile is directly connected with digestion. It is released sporadically into the small intestine (duodenum) which is part of the gut in order to help digestion. Bile contains chemicals that break down/emulsify fats by dispersing fat globules into small droplets, therefore increasing the surface area, in turn speeding up the reaction. When fats get to the small intestine they

The bile moves down the common bile duct, through the pancreatic duct and then into the duodenum and through the rest of the intestine.

Instead the pancreatic juice, which is the most important digestive juice, contains mainly water and enzymes such as: Amylase (breaks down carbohydrates/starch into glucose), Protease (breaks down proteins into amino acids) and Lipase which breaks down lipids (with the aid of bile) into triglycerides. It also contains sodium bicarbonate able to neutralize the hydrochloric acid present in the chyme. Through the lining of the small intestine I can also see numerous “brush border" enzymes which are further breaking down products of digestion into absorbable particles; these enzymes constitute the intestinal juice and particularly digest polysaccharides transforming them in monosaccharaides (Maltase, Sucrase and Lactase), (Patton & Thibodeau, 2008). The chyme now is entering in the jejunum (the second portion of the small intestine) where digestion continues and absorption begins. I notice that the jejunum contains numerous villi but less Brunner's glands, it also presents many large circular folds called plicae circulares (Pansky, 2007). These circular folds increase the surface area for nutrient absorption; in fact the absorption of the majority of nutrients takes place here. Now the chyme and I are entering into the ileum which is the final and longest segment of the small intestine. This tract of the

4. Describe the process of bile emulsification of lipids and how it improves lipase activity. _Fat globules are separated into droplets by bile salts through an emulsification

The gallbladder and bile ducts along with bile juice perform significant functions, including digestion and fat absorption and excretion of various metabolites from the liver.

The bile emulsifies fats and neutralizes acids in partly digested food. A muscular valve in the common bile duct opens, and the bile flows from the gallbladder into the cystic duct, along the common bile duct, and into the duodenum.

It isn't hard to see why record collectors love milk crates – they are portable, sturdy and just the right size for vinyls. Even retail giant Urban Outfitters joined the bandwagon, releasing their version of the milk crate a couple of years back.

The point of this lab was to identify the major components of milk. It was also used to understand polar and non-polar properties to make a separation diagram.

When we look at the sky, what do we see? Stars. What would it look like if there was an entire galaxy in view? That is exactly what will happen within four billion years. Our galaxy, the Milky Way Galaxy, is fated to collide with the Andromeda Galaxy, or M31. Scientists have been asking this question for decades, about how likely it is, or if it will even happen at all! But some newer evidence to this dilemma has revealed itself. Now that it is widely accepted as an inevitable fact, many questions are being asked, such as, “How probable is it?” and one of the most asked questions of them all, “Will we (humans in general) be around to see it?”. The answer is probably not, and here is why.

The bile moves into the gallbladder via tiny tubes. The bile is stored in the gallbladder and waits, becoming concentrated, for the signal to be released into the duodenum aiding in digestion. Without bile, the body could not digest fats, as fats do not absorb into water. The bile acts as a detergent and allows the two to mix.

This substance is produced when a human digests lipids or fats. According to Sareen Gropper and Jack Smith’s “Advanced Nutrition and Human Metabolism” bile is produced through the process of chemically altering cholesterol, which is a type of fat found in a human’s blood. This process takes place in the liver and bile acids are produced. These bile acids are then conjugated or united with taurine and glycine to produce biosurfactants known as bile salts. The existence of bile salts inside of bile gives the substance the capacity to amalgamate lipids and fats with their aqueous (watery) environment inside of the gallbladder. According to Sareen Gropper and Jack Smith’s “Advanced Nutrition and Human Metabolism” bile is released from its origin (gallbladder) into the small intestine. Through the process of emulsification the bile substance in the small intestine disintegrates fats into much tinier particles which can be digested and absorbed at a much more efficient and quicker rate. This evidently shows that without bile and in turn bile salts the digestion of fats will not be

Lipase is the enzyme that also known as triacylglycerol acylhydrolase with EC number 3.1.1.3. It is part of hydrolases family that act on carboxylic ester bond. It had been widely used as biocatalysts in biological process. Most of the lipase was expressed from natural resources such as plant, animal and microorganism. Lipases expressed from microorganism particularly interest due to easy production, capability to adapt in industrial application (Wang et al., 2017), stability in organic solvent, no cofactor required and broad substrate specification (Aravindan et al, 2006). The function of the lipase is to breakdown the triacylglycerol into free fatty acid and glycerol. In addition, it also involved in many synthesis reaction such as esterification, transesterification and aminolysis (Rivera et al., 2017). Due to its ability to breakdown lipid and many biological reactions, lipase is commercially used in large scale production.