Transportation in Plants and Animals



In the intricate world of living organisms, the efficient transport of essential substances is crucial for survival and growth. In Class 7 Science Chapter 7, we delve into the fascinating mechanisms that enable plants and animals to transport water, nutrients, and other substances throughout their bodies.

Transportation in Plants

Plants, being rooted to the ground, have developed ingenious systems to transport water and minerals from the soil to their leaves, and food from the leaves to other parts of the plant.

  • Xylem: This vascular tissue is responsible for the upward transport of water and minerals from the roots to the leaves.
  • Phloem: This vascular tissue transports food, primarily glucose, from the leaves to other parts of the plant.

The process of water and mineral transport in plants is known as transpiration. This involves the evaporation of water from the leaves, which creates a pulling force that draws water up the xylem.

Transportation in Animals

Animals, on the other hand, have evolved complex circulatory systems to transport blood, which carries oxygen, nutrients, and waste products throughout their bodies.

  • Open Circulatory System: In this system, blood is not enclosed in blood vessels but flows freely in body cavities. This system is found in invertebrates like insects and arthropods.
  • Closed Circulatory System: In this system, blood is confined to blood vessels, ensuring efficient transport. This system is found in vertebrates like fish, amphibians, reptiles, birds, and mammals.

The human circulatory system, a marvel of biological engineering, consists of the heart, blood vessels, and blood. The heart pumps blood to all parts of the body, while blood vessels carry blood to and from the heart.

Conclusion

The efficient transportation of substances is essential for the survival and growth of all living organisms. By understanding the mechanisms of transportation in plants and animals, we can appreciate the complexity and beauty of life.

If you want to dive deep into this chapter. Here are the personalized videos for class 7th.

Transportation in Plants and Animals

Part 1: https://youtu.be/K4KycbnCHYk

Part 2: https://youtu.be/F84x3bhU1S8

Part 3: https://youtu.be/DKRoKPqxL_I

Part 4: https://youtu.be/dKC5lnRv0Bk

Part 5: https://youtu.be/auuy3tkcCeQ

Part 6: https://youtu.be/eyQoenxUAsE

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