N&D Nutrition in Unicellular Organisms

In this nutrition type cell membranes forms Pseudopodia and surround the food. Then these Pseudopods unite surround the food and a food vacuole is formed in cytoplasm. This vacuole fuses with lysosomes which contain digestive enzymes after completing the digestion, the digested food pass to the cytoplasm and wastes are removed by Exocytosis.

Because autotrophic types get food from environment in absence of light and if live in dark continuously lose its chloroplast and live as heterotrophic organism for rest of life.

They get energy by convert organic materials of dead organisms into inorganic materials, as a result they have role in recycling of materials in nature by this way.

is an autotrophic organism but it has heterotrophic types also.

the main source of energy on earth.

these organisms which can produce their own food for instance Photosynthetic and Chemosynthetic organisms.

Cell Drinking.

All organisms primarily human need energy to survive; they get this energy from food they produces or from the surroundings.

In this type of nutrition digestive enzyme secreted out of cell, materials formed as result of extracellular digestion are transported to the cell cytoplasm.

is movement of digested food materials from high concentrated medium to low concentrated medium without using energy.

these organisms which cannot produce their own food for instance animals, fungi.

they can produce necessary organic materials by using sun light energy but they can take food from environment and feed heterotrophically.

autotrophs or heterotrophs.

is movement of water through a semipermeable membrane, water exchange takes place between cytoplasm and external medium.

taking large solid particles which cannot pass through pores in plasma membrane into the cytoplasm.