Why are Plants Useful for Man?

The reasons why plants are useful for humans.

In the modern world plants are used in a vast amount of things, from illegal substances such as cannabis to cosmetics. Man is very dependent on plants, as if researched you will find out that they are used in a lot of essential necessities. Plants, particularly forests and jungles, absorb carbon dioxide and emit oxygen in photosynthesis, which is good for the environment as it helps prevent global warming.

            One of the main utilities of plants for humans is medicine. A researcher named Murphy said the presence of certain proteins from plants in the blood could alert doctors to a potential cancer while still in the very early stages. Because they are so closely associated with the tumor, antibodies against these proteins could also be used as a delivery system for anti-cancer medicines. Most medicines require plants, and therefore without plants many cures would not be there for illnesses. Many plants make substances that are useful to the maintenance of health in humans and other animals. These include perfumed substances, most of which are phenols or their oxygen-substituted derivatives such as tannins. The World Health Organization (WHO) estimates that 80 percent of the world’s population presently uses herbal medicine for some aspect of primary health care. According to the World Health Organisation, approximately 25% of modern drugs used in the United States have been derived from plants. More than two thirds of the worlds plant species – at least 35,000 of which are estimated to have medicinal value. This is why plants are vital for the human survival.

            Plants are also practical due to the fact that we eat them so often, for example salads are made from plants and these are so popular. If you think about it, most sandwiches have a plant in them. When plants are being used for food, they are crucial for vegetarians, as without plant’s vegetarians would have a tough time surviving. Drinks produced from plants include coffee, tea, wine, beer and alcohol. Many of these foods/drinks are fundamental for some people for example many people really need coffee.

An additional aspect of plants is that they are in our clothes, and other materials. People have been using plant fibres for thousands of years in order to make clothing, rope, paper etc, even though all land plants contain fibres they are usually too short or too weak to be used for anything other than paper-making, but there are well over 100 species suitable for growing in temperate climates that produce long and relatively strong fibres. These plant fibres can be used supply us with cloths ranging from fine and silky to coarse sackcloth or ropes strong enough to make large ships.

Humans receive energy from plants, such as coal and biomass energy sources. Plants make many cosmetics like soap and shampoo, which are vital for hygiene. Tree rings are an important method of dating in archaeology and provide a record of past climates.

Plants are very precious to the human race, as they shape our world. Plants provide us with a range of utilities from construction of furniture to the sandwiches made by them. Without plants the human race would be lacking many essential necessities to surivive.

4
Liked it
One Response to “Why are Plants Useful for Man?”
  1. Emm Says...

    On January 14, 2011 at 2:23 pm

    Thank you, needed some help for a Science question ‘Why are plants useful?’ And this has definately answered it :)
    thanks


Post Comment
comments powered by Disqus