The students did the same with lemon juice and milk of magnesia, after cleaning out their pipets and the wells. The students then recorded the color changes on their worksheet.
It was rewarding to see students carefully test these substances with great curiosity and care, as they could not guess what the result would be. The more challenging part came when the students had to mix acidic and basic solutions, including vinegar and baking soda, and lemon juice and milk of magnesia together and record the results. This was to show how when an acid is added to a base, its acidity level falls as it becomes neutralized, changing the color of the red cabbage water. The opposite occurs when a base is added to an acid. The students were encouraged to try their own mixtures of different substances on hand.
A left the classroom feeling that the students had enjoyed the activity, had learned which substances were acidic and basic and gained greater confidence using laboratory tools. This was a good introduction to the scientific method and process of discovering something, rather than...
508). Of course, if gastric juices continually enter the esophagus, causing heartburn, other disorders like esophagitis and peptic/esophagus ulcers may occur (Glanze, 1990, p. 509). As to treatment for this disorder, many people often rely upon over-the-counter medications designed specifically to alleviate the symptoms of gastroesophageal reflux; however, most of these types of medications do not prevent gastric juices from the stomach to re-occur in the esophagus. Thus, in uncomplicated
The digestive fluids that are secreted by the stomach glands aimed at breaking down solid food and to kill bacteria in the stomach are referred to as gastric juices. Gastric acid is produced by the gastric parietal cell located on the walls of the stomach. The region where the gastric juices are secreted into the lumen is the most acidic environment in the human body and is known as the
Gastric Acid Stimulation and Production Pathophysiology of gastric acid stimulation and production The parietal cells in the stomach are responsible for the production of gastric acid. Parietal cells contain secretory canaliculus, which produce gastric acid and release it into the gastric lumen. Gastric acid is produced as a response to the messages received through hormonal, paracrine, and neurocrine messengers (Schubert & Peura, 2008). The production of gastric acid undergoes three phases namely
Cellular Function How do cells in a multicellular organism communicate with one another? Cells communicate by chemical signals. Chemical signals are passed from one cell to another for example saccharomyces cerevisiae, the yeast of bread; wine identifies potential mates by chemical signaling. Direct contact, cell to cell. Through formation of connections or cellular junctions to neighboring cells. By use of receptors whereby signaling molecules bind. Forming groups' i.e. group together in a colony. Communicate using light. Through chemical
HcL Production Hydrochloric acid is a very strong acid and a significant element of the gastric juice that has contributed to increased interest in its impact and consequences. Generally, hydrochloric acid is a colorless, clear acid that is found naturally in gastric acid since it is a highly pungent solution of hydrogen chloride in water. The considerable interest in the production of hydrochloric acid is attributed to the belief that it
PLC Product Life Cycle When we talk about the strongest multinational companies of the world then Nestle is definitely one of the names that triggers in everyone's mind. Nestle is the world's No.1 food manufacturing company. Nestle is a Swiss multinational company whose product are available almost in every part of the world. Most of the Nestle products are in a market leading position. Nestle company was established in 1866 and since
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