Plant - Photosynthesis and Food chain
Plant - Photosynthesis and Food chain
Why do plants and animals need to grow?
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| Why do plants and animals need to grow |
Lion, Deer, bears, salmons, pelicans, tiger, elephants, oaks, cacti, algae, lichens-any list illustrating the huge diversity of species on the Earth is inevitably an unending one. Many animals and plants inhabit our gardens; others live on high mountains or in colourful shimmering coral reefs. All of them have adapted to their environment in order to survive. This is all the more true in the case of animals that live in deserts or in extremely cold regions. Unfortunately, we are increasingly destroying the habitats of animals. On the one hand, we are clearing forests and polluting seas and coastal areas. On the other hand, we are trying to protect the environment by recycling waste, building national parks and wildlife sanctuaries, and launching breeding programmes in zoos.
Almost all plants and animals need air, water, light, and nutrition to grow. Green plants use a complicated chemical process, called photosynthesis, to create energy for survival and growth. Since plants create their own energy, they are the first link in the food chain. Animals need to drink water and eat plants or other animals to get energy. Therefore, they are present at the next step in the food chain. There are some animals, like camels, that can survive for days without drinking water. Since they live in deserts with very little water, they have adapted to the special conditions of their habitat.
How do plants get food?
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| Venus flytrap an insectivorous plant |
Unlike animals, plants produce their own food and except for a few carnivorous plants, do not eat other organisms. Green plants use water, nutrients, and a green matter in their leaves called 'chlorophyll' to produce their food. Normally water and nutrients are absorbed from the ground through their roots. Some plants, however, have developed other methods for obtaining water and nutrients. Many tree-dwelling plants make funnel-shaped 'containers' with their leaves to catch water. Carnivorous plants use their digestive juices to convert the insects, caught in their folding or sticky traps, into nutrients.
very little light can penetrate to the bottom of deep seas? Therefore, the fish living at that depth have especially big eyes to absorb the little light available there. With which they can take up the less available light.
the eyes of the olm, which lives in dark caves, have regressed and are present below the skin?
What happens when we keep plants in the dark?
In the absence of light, plants shed their leaves and die, leaving only their roots and stems. Plants grow slowly at night and in winters. Most animals are also dependent on light, although some have adapted to their dark habitats. For example, the moles living below the ground are almost blind because they do not need their eyes underground. We humans also need sunlight to help produce vitamin D in our skin, which in turn is needed for building bones. We will also lose the perception of time if it is pitch dark around us for very long.
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| What happens when we keep plants in the dark? |
What is photosynthesis?
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| Photosynthesis |
is supplied to the leaves by the roots, and carbon dioxide (CO2) is absorbed from the air through tiny pores on the lower side of the leaf. Both these are broken down into the elements hydrogen (H), carbon (C), and oxygen (O) with the help of chlorophyll and sunlight. Plants build 'glucose (grape sugar) from these elements and oxygen is released in the atmosphere as a by-product. Photosynthesis has been the source of oxygen in the air since the origin of life on the Earth.
What happens when we keep plants in the dark?
The chloroplast inside the green leaves of plants is the 'workshop' where photosynthesis takes place. Water (H₂O)
is supplied to the leaves by the roots, and carbon dioxide (CO2) is absorbed from the air through tiny pores on the lower side of the leaf. Both these are broken down into the elements hydrogen (H), carbon (C), and oxygen (O) with the help of chlorophyll and sunlight. Plants build 'glucose (grape sugar) from these elements and oxygen is released in the atmosphere as a by-product. Photosynthesis has been the source of oxygen in the air since the origin of life on the Earth.
What is the food chain?
Food chain
In nature, there are producers' that build the biological mass, and consumers' that eat. Producers are the plants, which grow and create energy with the help of photosynthesis. They are eaten by a consumer, and that consumer is often eaten by another consumer. This chain of consumers is called the 'food chain. A short food chain is grass-cow-man. A longer one is algae-water flea-herring-seal-polar bear: A water flea eats algae, a herring eats many water fleas, a seal eats herrings, and the polar bear eats the seal. Ultimately, a lot of algae are needed to feed a polar bear. When the polar bear dies, its meat is either eaten by other animals or it is decomposed into nutrients by bacteria. These nutrients are again used by the algae to create energy, and thus the food chain gets completed.
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| Food chain This is wrap on post plants ,more post related To plants will be uploaded soon . |
