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Chapter 19: Q3CP (page 635)

Why do photosynthetic organisms contain several types of pigment molecules?

Short Answer

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There are several photosynthetic organisms containing pigment molecules.

Step by step solution

01

Introduction to photosynthetic pigments

A photosynthetic pigment is a pigment that collects the light required for photosynthesis in chloroplasts or photosynthetic microorganisms.

02

Photosynthetic pigments found in organisms.

In photosynthetic systems of animals capable of photosynthesis, photosynthetic pigments are the chemicals responsible for absorbing electromagnetic radiation, transmitting the energy of absorbed photons to the reaction centre, and for photochemical conversation.

Multiple pigments absorb various wavelengths of light, allowing the plant to collect as much energy as possible from the sun. Plants with many pigments have distinct colored leaves, allowing them to capture the most amount of energy from the sun.

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Most popular questions from this chapter

The shell of the cyanobacterial carboxysome described in Problem 25 is relatively impermeable to O2. Why would this be an advantage for the bacteria?

In an effort to increase the efficiency of photosynthesis in crop plants, researchers have genetically engineered tobacco plants (a model organism) to express cyanobacterial RuBP carboxylase, which has lower oxygenase activity. However, tobacco plant growth was not enhanced unless the plants were also engineered to express the cyanobacterial genes for bicarbonate transporters. Explain this observation.

Calculate 螖蔚0'and 螖G0'for the light reactions in plants, that is, the four-electron oxidation of H2O by NADP+.

Compare and contrast photophosphorylation and oxidative phosphorylation.

Cyanobacteria contain carboxysomes, which consist of a protein shell that encloses RuBP carboxylase and is permeable to small anions such as HCO3鈭�.Explain why carbonic anhydrase is also a component of the carboxysome.
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