Important facts related to biological process and nutrition for competitive exams,
What are the main modes of nutrition in living organisms? What are autotrophs and heterotrophs?
Biology science GK imp facts for competitive exams and board exams,
Facts related to biology are asked prominently in various competitive exams, here you can find an important topic of biology - what are the main methods of nutrition in organisms? What are autotrophs and heterotrophs? You will know in easy language about important facts related to biological process and nutrition-
Chlorophyll, which plays an essential role in the process of photosynthesis, is called the photosynthetic unit, and the green pigment is called the photosynthetic organelle.
Organisms that synthesize their own food without relying on other organisms for food are called autotrophic,
Such organisms which depend on other organisms for their food in one way or the other are called heterotrophic,
The 4 raw materials needed in the photosynthesis process are carbon dioxide, water, chlorophyll, sunlight.
Amoeba and Paramecium animals are heterotrophs
The digestive glands called the salivary gland, liver, and pancreas are found associated with the human alimentary canal.
Digested food is absorbed through the vilification of the ileum.
After absorption, the digested food mixes with the blood and is distributed to different parts through blood circulation.
Every organism needs nutrition throughout life to supply the necessary energy for the conduct of metabolic activities.
In saprophytes, organisms absorb their food from the body of dead organisms in the form of dissolved organic matter from the surface of their body,
In parasitic nutrition, organisms obtain their food by living in contact with another animal, either permanently or temporarily.
Such nutrition in which the animal takes its food in the form of solid or liquid by the method of taking food of animals is called animal nutrition.
The juice released from the glands of the duodenum and ileum is called succus entericus.
In humans, the process of digestion starts from the oral cavity.
Gastric juice secreted from gastric glands contains HCl, pepsinogen, and gastric lipase
The length of the human alimentary canal is about 8 meters to 10 meters, and it is divided into the oral cavity, pharynx, esophagus, stomach, small intestine and large intestine.
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