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1) If you mix a starch solution with freshly collected saliva and incubate it for 30 minutes at 37°C, will this mixture test positive for the IKI test? Why or why not? 2) If you mix a starch solution with saliva and incubate it for 30 minutes at 37'C, will this mixture test positive for the Benedict test? Why or why not?

1) If you mix a starch solution with freshly collected saliva and incubate it for 30 minutes at 37°C, will this mixture test positive for the IKI test? Why or why not? 2) If you mix a starch solution with saliva and incubate it for 30 minutes at 37'C, will this mixture test positive for the Benedict test? Why or why not?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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1) If you mix a starch solution with freshly collected saliva and incubate it for 30 minutes at 37°C, will this mixture test positive for the IKI test? Why or why not? 2) If you mix a starch solution with saliva and incubate it for 30 minutes at 37°C, will this mixture test positive for the Benedict test? Why or why not? 3) Bile works as a biological emulsifier that emulsifies lipids in the small intestine. Emulsifiers are often used in the food industry. How can one tell if an oil and vinegar salad dressing has an emulsifier in it? 4) What are the products of the chemical digestion of triglycerides by pancreatic lipase? 5) What type of pH environment is most optimal for pepsin to digest proteins? 6) What is the difference between Pepsin and Pepsinogen? 7) Which of the following digestive enzymes is not present in the oral cavity? A) lipase B) amylase C) trypsin D) all of the above 8) Where is the enzyme lactase normally produced? A) intestine B) pancreas C) saliva D) stomach 9) Which of the following organs does not produce digestive enzymes? A) stomach B) tongue C) intestine D) gallbladder 10) Why do we eat? (Be very brief in your explanation but be as specific as possible).
Transcribed Image Text:1) If you mix a starch solution with freshly collected saliva and incubate it for 30 minutes at 37°C, will this mixture test positive for the IKI test? Why or why not? 2) If you mix a starch solution with saliva and incubate it for 30 minutes at 37°C, will this mixture test positive for the Benedict test? Why or why not? 3) Bile works as a biological emulsifier that emulsifies lipids in the small intestine. Emulsifiers are often used in the food industry. How can one tell if an oil and vinegar salad dressing has an emulsifier in it? 4) What are the products of the chemical digestion of triglycerides by pancreatic lipase? 5) What type of pH environment is most optimal for pepsin to digest proteins? 6) What is the difference between Pepsin and Pepsinogen? 7) Which of the following digestive enzymes is not present in the oral cavity? A) lipase B) amylase C) trypsin D) all of the above 8) Where is the enzyme lactase normally produced? A) intestine B) pancreas C) saliva D) stomach 9) Which of the following organs does not produce digestive enzymes? A) stomach B) tongue C) intestine D) gallbladder 10) Why do we eat? (Be very brief in your explanation but be as specific as possible).
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