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ВЛИЯНИЕ УРОВНЯ РН НА ДЕЙСТВИЕ ПЕПСИНА

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Бұл бет үшін навигация:

• Purpose
• Conclusion

ВЛИЯНИЕ УРОВНЯ РН НА ДЕЙСТВИЕ ПЕПСИНА (Virtual physiological experiment выполняется на английском языке для казахских групп). Pepsin is a proteolytic enzyme that is synthesized in an inactive form by the fundal cells of the stomach and activated by the action of hydrochloric acid. Purpose: Demonstrate the effect of рН on the effectiveness of pepsin. Equipment: personal computer, program on virtual physiology of breathing «LuPraFi-Sim». Progress of work: using the program, explore the role of pepsin in protein digestion. The results: draw a diagram of the experiment and record the degree of assimilation of egg white. Impacts Protein Pepsin+acid When pepsin and acid are added, the protein dissolves and decomposes. Pepsin+water With the addition of water and pepsin, the protein decomposed in 3 hours and did not react at all. Acid+water With the addition of acid and water, the protein decomposed in 3 hours and did not react at all. Conclusion: explain the resulting changes. When pepsin and acid are added, the protein dissolves and decomposes; only in this reaction does the position of the protein change. Задание 9. Решите ситуационные задачи, ответьте на вопросы Задача №1. Проводят эксперимент на собаке с изолированным маленьким желудочком. Собаке дана пища. Секреция желудка началась через 40 минут. Вопросы: 1. По какой методике сделана операция маленького желудочка? 2. Каков механизм возбуждения желудочных желез в данном опыте? жүктеу/скачать 0,94 Mb. Достарыңызбен бөлісу: