Without enough water, the plant goes floppy, or wilts. During photosynthesis, oxygen is created. It escapes from the leaves and enters the air. Animals need oxygen to live. Plants use their leaves to make food. This entire structure is linked to Chl, which accepts the red light emitted by APC.
The arrangement of the hat-like structure has been shown in Figure 3. The change in light color from green to red takes place through a process known as fluorescence. Let us see what fluorescence is. Imagine a transparent container filled with a pink-colored liquid that, when illuminated with a flashlight, shines a bright orange! That is exactly what CPE does Figure 4. All phycobiliproteins possess this exciting property of giving off visible light of a color different from the color of light that is shone on them.
APC takes up this light-red light and changes it to a deep red light for Chl. So, now we have the green light changed to red, which is the color of light that nature intended Chl to absorb. The entire process is a sort of a relay race, where each participant picks up where the previous one left off Figure 5. These phycobiliproteins are an important part of the tiny microscopic organisms called cyanobacteria, which carry out photosynthesis in much the same way as land plants do.
The only difference is that they use a different set of chemical molecules—cyanobacteria use phycobiliproteins while land plants use Chl. So, we now know that photosynthesis is the process by which plants produce their food, using Chl. We also know that the reduced amount of light available in the oceans decreases this photosynthetic process.
Nature has evolved some helper chemical molecules known as phycobiliproteins, which are able to absorb the colors of light available in the oceans and turn this light into a color that Chl molecules can use. These phycobiliproteins are found in tiny, invisible-to-the-naked-eye cyanobacteria, whose photosynthesis is responsible for providing food for the living organisms in the oceans and also for making the oxygen in our atmosphere that we breathe every second.
In the future, we hope to gain more understanding of the functions of phycobiliproteins and the roles that they may play for the benefit of mankind. The foods are called glucose and starch. A few plants can grab an extra meal by eating small animals. The sundew lives in boggy areas, where the acid soil is poor in minerals. Sticky tentacles on its leaves trap any small insect that lands on them.
The insect dies, and the sundew gradually absorbs its juices to get a special mineral supplement. Even so, most of the growth that sundews make comes directly from photosynthesis.
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