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प्रश्न
Explain the various steps of nutrition in animals.
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उत्तर
The various steps of nutrition in animals are:
- Ingestion: The process of taking in of food into the body is called ingestion. Ingestion of food in humans is done with the help of the buccal cavity.
- Digestion: The process where conversion of food into soluble form occurs.
- Absorption: The nutrients from the digested food are absorbed in the small intestine with the help of finger-like projections called villi.
- Assimilation: The absorbed nutrients are transported via the blood vessels to the different organs, to be utilised for different life processes.
- Egestion: The process of removal of faecal matter through the anus is called egestion.
संबंधित प्रश्न
Explain the following term with an example:
Omnivore
In the food pyramid, cereals are given the maximum space because they fulfill our ______ requirement.
Pulses are a very good source of ______.
Give reasons.
Butterflies have a long tube-like proboscis.
Very Short Answer Type Questions:
Name two energy-providing nutrients.
Short Answer Type Questions:
A small child became very thin and lean and later he became so weak that he could not move. Which nutrients should he eat so as to improve his health?
Meat alone is sufficient to provide all nutrients to the body.
The nutrient required in trace amounts to accomplish various body functions is ______.
Which of the following statements is/are correct?
- All green plants can prepare their own food.
- Most animals are autotrophs.
- Carbon dioxide is not required for photosynthesis.
- Oxygen is liberated during photosynthesis.
Choose the correct answer from the options below:
Observe the diagram given as Figure and label the following terms given in the box.
| stomatal opening, guard cell |
