As a part of the heterotrophic mode of nutrition, some plants depend on other plants for their food as they do not have chlorophyll for the process of photosynthesis. These types of nutrition in plants are referred to as Heterotrophic nutrition in plants, hence are called Parasites.
Different types of heterotrophic plants that are mainly classified based on their mode of nutrition are -
Some heterotrophic plants depend on other plants and animals for their nutritional needs. Such plants are known as parasitic plants. However, the host is not benefited from the parasite.
For eg., Cuscuta, Cassytha
Some plants have special structural features that are capable of trapping insects and are known as Carnivorous or Heterotrophic plants. These plants digest the insects by secreting digestive juices and absorb the nutrients from them. These plants grow on the soil that lacks minerals.
For eg., Pitcher plant, Venus flytrap
The plants which derive nutrients from the dead and decaying plants and animals are called Saprophytic Plants. In this process, they dissolve the dead and decaying matter by secreting digestive juices and absorb the nutrients.
For eg., mushrooms, moulds.
When two different plants belonging to two different categories show a close association, they are termed as symbiotic. In this, both the plants are benefitted from each other.
For eg., the association of fungi and trees.
1. What are Nutrients?
Nutrients can be defined as the components that are found in our food such as carbohydrates, vitamins, minerals, fats etc. These components are important for the survival of the living organisms.
2. What are the modes of nutrition in plants?
The process of obtaining food and utilizing it to grow, stay healthy and repair any damaged body part is known as nutrition. Plants produce their food by taking raw materials from their surroundings, such as minerals, carbon dioxide, water, and sunlight. There are two modes of nutrition:
Autotrophic – Plants are called primary producers as they exhibit autotrophic nutrition. Plants synthesize their food by using light, carbon dioxide, water, carbon dioxide, or other chemicals.
Heterotrophic – As both animals and human beings depend on plants for their food, so they are called heterotrophs.
3. What are the conditions that are necessary for Photosynthesis?
4. What are the steps involved in photosynthesis?
The steps involved in photosynthesis are -
Absorption of energy from sunlight
Conversion of light energy into chemical energy
Hydrolysis of water into oxygen and hydrogen
Carbon dioxide is reduced to form glucose by utilizing chemical energy
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