they are fat molecules .
because chlorophyll contains a porphyrin ring and a long hydrocarbon non polar tail which is anchored to the thylakoid membrane.
beta carotene are organic and stored in fat tissue due to its non polar structure.
are clorophyll a, chlorophyll b and B-carotene classified as proteins, sugars or fats? Why?
NORMAL PHASE PEVE BE ASE Carotene Xantophylls Chlorophyll b Chlorophyll a Pheophytin Pheophytin Chlorophyll a Chlorophyll b Carotene Xantophylls (a) (b) In 10.1.1. 1 .../.... 1.A The picture above shows TLC plates run on a normal phase (left) and reverse phase (right) TLC place. Why is the order of elution reversed in these two cases ? (order of elution describes the order in which solutes migrate up a TLC plate) Use what you have learned about TLC to answer this...
What is the maximum wavelengths of absorption for Chlorophyll A, Chlorophyll B, a-Carotene, Phenophytin A, and Xanthophyll (Cryptoxanthin)?
Of the four compounds chlorophyll a, chlorophyll b, xanthophyll and beta- carotene, which is the most polar? Which is the least polar? Explain.
10.0 cm B carotene & Solvent Front 5.0 cm Xanthophyli Chlorophyll 3.0 cm Chlorophyll 10 cm B Leaf Material What is the Rf value for Xanthophyll ? 1 0.5 0.3 0.1
Relative to other compounds contained within spinach (i.e., pheophytin, chlorophyll, and xanthophyll) when is the B-carotene expected to elute the Columbia (i.e., first. middle, or last) and why?
1. Describe how the functional units for beta carotene, xanthophyll, chlorophyll A, and chlorophyll B are different. Be sure to identify the subunits that adhere to paper during chromatography, 2 Describe a technique for measuring photosynthetic rate. 3 Many deciduous trees have leaves that turn yellow in the fall. What do you suppose is happening in the leaves at the cellular and molecular level? 4. Chloroplasts and mitochondria are both unusual in that they have double membranes and contain their...
Why do chlorophyll a and chlorophyll b have different Rf values? (Why is chlorophyll a slightly more soluble in solvent than chlorophyll b?)
11.Which of the following statements is NOT true of saturated fats and added sugars? a. Neither cheese nor pizza contribute significantly to solid fat intake. b. Increasing saturated fats and added sugars in foods will reduce nutrient density. c. Foods high in saturated fats and added sugars have a high energy density. d. Sodas, energy drinks, sports drinks, and desserts are significant sources of added sugars. 12. Which statement is NOT true about processing? a. Minimally processed frozen vegetables offer...
Which of the following statements is NOT true of saturated fats and added sugars? Neither cheese nor pizza contribute significantly to solid fat intake. Foods high in saturated fats and added sugars have a high energy density. Increasing saturated fats and added sugars in foods will reduce nutrient density. Sodas, energy drinks, sports drinks, and desserts are significant sources of added sugars.
Energy and Photosynthesis Pre-Lab Questions Describe how the functional units for beta carotene, xanthophyll, chlorophyll A, and chlorophyll B are different. Be sure to identify the subunits that adhere to paper during chromatography. Describe a technique for measuring photosynthetic rate. Many deciduous trees have leaves that turn yellow in the fall. What do you suppose is happening in the leaves at the cellular and molecular level? Chloroplasts and mitochondria are both unusual in that they have double membranes and contain...