An experiment was conducted to demonstrate that chlorophyll is essential for photosynthesis. The procedure followed is given below: • A potted variegated plant was destarched. • Variegated leaves have green parts (where the cells contain chlorophyll) and white parts (where there is no chlorophyll). • A starch test was done on a leaf. • The potted plant was exposed to bright sunlight for 4–5 hours. • After 5 hours, a leaf was removed and tested for starch. How was the potted plant destarched? Explain why all the starch has disappeared during the process Mentioned in QUESTION 1. Describe the steps in the correct sequence that were followed during the starch test. Explain ONE safety precaution that should be taken when testing for starch. Draw a labelled leaf and indicate the colour change in the green and white parts of the leaf, after the second starch test.

An experiment was conducted to demonstrate that chlorophyll is essential for photosynthesis. The procedure followed is given below: • A potted variegated plant was destarched. • Variegated leaves have green parts (where the cells contain chlorophyll) and white parts (where there is no chlorophyll). • A starch test was done on a leaf. • The potted plant was exposed to bright sunlight for 4–5 hours. • After 5 hours, a leaf was removed and tested for starch. How was the potted plant destarched? Explain why all the starch has disappeared during the process Mentioned in QUESTION 1. Describe the steps in the correct sequence that were followed during the starch test. Explain ONE safety precaution that should be taken when testing for starch. Draw a labelled leaf and indicate the colour change in the green and white parts of the leaf, after the second starch test.

Nutrition Now

8th Edition

ISBN:9781337415408

Author:Brown

Publisher:Brown

Chapter1: Key Nutrition Concepts And Terms

Section: Chapter Questions

Problem 12RQ

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