minutes WITHOUT SWALLOWING, you would notice a change in the way the bread tastes. It will taste as you expect bread to taste, but after a few minutes, the bread begins to taste Explain.

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,...
icon
Related questions
Question
### Activity: Exploring Enzyme Activity in Saliva

**Objective:** Understand how enzymes in saliva break down starch and observe the resulting taste change.

---

**Instructions:**

1. **Preparation:**
   - Obtain a piece of bread.
   - Make sure not to swallow the bread during the activity.

2. **Observation:**
   - Start chewing a piece of bread and keep it in your mouth for a few minutes WITHOUT SWALLOWING.
   - Pay close attention to the taste changes over time.

3. **Expected Result:**
   - Initially, the bread will taste as you normally expect it to.
   - After a few minutes, the taste will change and the bread will begin to taste sweet.

**Explanation:**
   - Saliva contains an enzyme called amylase that digests (breaks down) starch.
   - Starch, the complex carbohydrate present in bread, is broken down into simpler sugars by the action of amylase.
   - As the starch is broken down into sugars, the bread tastes sweeter due to the presence of these simpler sugars.

**Question for Reflection:**
- Why does the bread begin to taste sweet after a few minutes of chewing?

---

***Note:*** This activity demonstrates a basic principle of digestion and the role of enzymes in breaking down food into simpler substances that can be more easily absorbed and utilized by the body.
Transcribed Image Text:### Activity: Exploring Enzyme Activity in Saliva **Objective:** Understand how enzymes in saliva break down starch and observe the resulting taste change. --- **Instructions:** 1. **Preparation:** - Obtain a piece of bread. - Make sure not to swallow the bread during the activity. 2. **Observation:** - Start chewing a piece of bread and keep it in your mouth for a few minutes WITHOUT SWALLOWING. - Pay close attention to the taste changes over time. 3. **Expected Result:** - Initially, the bread will taste as you normally expect it to. - After a few minutes, the taste will change and the bread will begin to taste sweet. **Explanation:** - Saliva contains an enzyme called amylase that digests (breaks down) starch. - Starch, the complex carbohydrate present in bread, is broken down into simpler sugars by the action of amylase. - As the starch is broken down into sugars, the bread tastes sweeter due to the presence of these simpler sugars. **Question for Reflection:** - Why does the bread begin to taste sweet after a few minutes of chewing? --- ***Note:*** This activity demonstrates a basic principle of digestion and the role of enzymes in breaking down food into simpler substances that can be more easily absorbed and utilized by the body.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Nutrition and Diet
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education