1a. [1 mark] Thin-layer chromatography was carried out on red and brown algae to discover what photosynthetic pigments they contained. The results were compared with the known pigments found in spinach leaves. Solvent front ?-carotene Chlorophyll a Chlorophyll b Xanthophylls P Origin Red alga Brown alga Spinach Identify pigment labelled P. 1b. [1 mark] State a suitable solvent for extracting photosynthetic pigments from plant tissue. 1c. [3 marks] Explain how the pigments in the chromatogram of spinach are identified.
Added by Richard L.
Close
Step 1
The pigment labeled P is Chlorophyll a. This is because it is in the same position as the known Chlorophyll a in the spinach chromatogram. Show more…
Show all steps
Your feedback will help us improve your experience
Supreeta N and 91 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Thin layer Chromatography Biological molecules can be separated by using chromatographic techniques. The diagram below shows the separation of several spinach leaf pigments by paper chromatography. Using the diagram below, answer the following questions: Solvent Line Carotene (yellow orange) Xanthophyll (yellow) Chlorophyll a (blue green) Chlorophyll b (greenish yellow) Pigment Extract (origin)
Shyam P.
There are four pigments that you will separate from spinach this week: chlorophyll-a, chlorophyll-b, xanthophylls, and carotene. What color will the bands for these pigments be? Chlorophyll-a: Chlorophyll-b: Xanthophylls: Carotene: In what order would you expect to find these pigments on the TLC plate (from least to greatest distance traveled)?
Shveta P.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD