Cacti produce their food through photosynthesis that occurs in their pads, which are modified stems. Evolution has modified their leaves into spines that provide shade for the pads and break up the wind to reduce evaporation through the skin of the stems.Know More
Producing food in the arid desert region is not easy for cacti. They use a modified form of photosynthesis scientists call CAM photosynthesis. This process allows them to open the pores in their leaves to collect the carbon dioxide necessary for converting sunlight into glucose. They then close these pores and store the carbon dioxide internally until sunrise.
Cacti also have specialized root systems that allow them to gather moisture quickly from the limited amount of desert rain. The root system is broad but shallow. In some cacti, the first few drops of rain trigger the growth of fine roots to improve the plant's ability to absorb and store moisture; these roots dry up later. A waxy layer on the surface of the pads helps reduce evaporation of water.
The temperature inside a cactus plant can reach 70 degrees Fahrenheit without damaging the plant. As colder weather arrives, the cactus stores less water, and the internal moisture is converted to a thick mucus-like substance that helps the plant survive the cold.Learn more about Botany
Plants store food in the vertical shoot of their stems and roots. They also store water and other nutrients within their stems to be used at a later time.Full Answer >
Organisms that produce their own food are called producers. These producers are part of the biotic factors in an ecosystem.Full Answer >
Photosynthesis and chemosynthesis are similar in that they both provide for the process by which plants produce food and fuel for growth. However, they differ in terms of how they provide for this process. Photosynthesis accomplishes this process through sunlight, while chemosynthesis accomplishes it through chemical energy.Full Answer >
Photosynthesis is the process by which green plants manufacture their own food. The process takes place in small structures within the plant’s cells called chloroplasts. Photosynthesis evolved about 3 billion years ago, yet it remains the most important method for harvesting the sun’s energy on the planet.Full Answer >