different types of nutrition in plants
Answers
Explanation:
Autotrophs
The typical green plants we think of are autotrophs, meaning they make their own food. Plants are a particular type of autotroph called a phototroph, meaning they get their energy from the sun, hence the prefix 'photo.' Most autotrophic plants contain a pigment called chlorophyll, which makes them green. In the presence of sunlight chlorophyll helps plants fix carbon into sugars during photosynthesis; they then use those sugars for growth and energy. Any green plants you see, such as grass, trees, and many flowers, are autotrophic.
Heterotrophs
Surprisingly, some plants are heterotrophs like us, meaning they eat to get their food. However, eating doesn't always look the same. Plants don't have a digestive system, or even a mouth to put their food in, so they have to get creative with their digestion process. Let's look at a few examples.
Insectivores
We all know insects are common pests for crops, consuming both their leaves and fruits. But, what happens when plants strike back? Some plants are insectivores, meaning they eat insects.
Pitcher plants are carnivorous plants with a modified leaves shaped like a pitcher. The pitcher contains sweet nectar that lures insects in. Once they approach the pitcher, they soon find they are unable to climb out of the smooth sides, becoming trapped in the sticky liquid inside. The liquid in the pitcher contains digestive enzymes that break down the insect, allowing the plant to absorb nutrients that it could not otherwise find in the soil. Some pitcher plants can grow quite large and have even been known to trap small rodents and amphibians.
Pitcher plants are insectivorous
pitcher plant
Another famous insectivorous plant is the Venus fly trap. Venus fly traps are a prominent figure in North Carolina. These plants have modified leaves that have trigger hairs on the edge, like a trip wire on a trap. When a bug sets off the trap, the leaf folds and the bug is trapped and digested by the plant.
Saprophytes
Have you ever gone to make a sandwich, only to find a furry mold growing on the top? Mold is a saprophyte, which means it digests its food externally and then absorbs it. Fungi produce long root like structures called hyphae. The hyphae are made from fungal cells that grow into living or dead material. The cells secrete enzymes and chemicals that break down the material, allowing the fungi to absorb it. This is why your strawberries turn to a delicate mush once that mold takes hold. Although this mode of nutrition is not used in plants, only fungi, some plants partner with fungi to take advantage of this technique.
Saprophytes use hyphae to get nutrients from other living things
mold
Symbionts
Organisms in a symbiotic relationship have an interaction that is important for their life cycle. Symbiosis can be beneficial, where both organisms get something out of it, or it can be harmful to one, such as during parasitism. Let's look at an example of each.
Parasitism
Although we might think of parasites like roundworms filling our digestive cavity, or ringworms making a home underneath the skin, plenty of plants take advantage of other's hard work as well. A parasite is an organism that lives in or on another, taking nutrients for itself.
A particularly smelly example is the corpse flower, or Rafflesia arnoldii, living in Indonesia. This huge flower, weighing over 20 pounds, puts out the smell of rotting flesh to attract flies to pollinate it. The leaves are missing with all of its mass in the giant flower. Without leaves, this plant does not do photosynthesis and instead sucks nutrients from nearby vines.
Explanation:
Modes of Nutrition
plant produce their food by taking raw material from their surrounding such as mineral carbon dioxide water and sunlight there are two modes of Nutrition autotrophic plant exhibit autotrophic nutrition are called as primary product.
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