Question

economic importance of gymnosperms writ any 10 points and pleas dont search on goggle

Answer 1

Gymnosperms are the small group of plants, which constitutes a sub division of spermatophyta or phanerogams. There are about 73 genera and 7000 species in subdivision gymnospermae.

1. As food

• Seeds of some species are edible: Cycas, Ginko, Pinus, Gnetum
• Stem of Cycas revoluta is a good source of Sago starch
• Zamia is a rich source of starch.
• Seeds and stem of Cycas revoluta used for making wine.

2. As medicine

• Taxol
• Leaves of Cycas circinalis, Taxus are used as medicines.
• Pollen grains of some Cycas have narcotic effect
• Oil of Juniperus is important.
• Ephedrine derived from Ephedra used in treatment of cold, cough.
• Anti-cancerous drug called taxol, is obtained from the bark of Taxus

3. As ornaments

• Species of Cycas are used for decoration purposes
• Ginkgo bioloba, possess beautiful ornamental leaves
• Thuja, Pinus, Taxus etc are grown in parks.

4. In industry

• Spruce or Picea is an important source of pulp wood.
• Wood of Juniperus is used in making pencils, scales and holders.
• Bark of Larix yields a tannin
• Terpentine is obtained from Abies balsemea.
• Wood of red spruce is especially important for music industry.

Answer 2

⭕The economic Importance of Gymnosperms:

✔️Edible seeds:
seeds of pinus called chilgoza are edible.
They are eaten after roasting.

✔️Timber:
Gymnosperms possess softwood.
It is used in preparation of light furniture, plywood, packing cases, matchsticks, railway sleepers, etc.

✔️Paper:
A number of Gymnosperms woods are used in the manufacture of paper.

✔️Fibre boards:
Needle of pinus and other conifers are used in making fibre boards that are used in making packing cases.

✔️Ephedrine:
Drug ephedrine is obtained Ephedra, a gymnosperm.
The drug is used in curing respiratory ailments including asthma.

✔️Taxol:
An anticancerous drug, called taxol, is obtained from the bark of Texus.

⭕The economic importance of Angiosperms:

✔️Food:
Flowering plants are the major sources of food.
They produce cereals such as wheat, rice, etc. , vegetables such as potato, tomato, carrot etc and fruits such as apple, mango.

✔️Edible oils:
Flowering plants are the main source of edible oils used for cooking.
These are obtained from groundnut, mustard, sunflower, coconut etc.

✔️Spices:
common spices are obtained from various parts of flowering plants such as coriander, cloves, black paper, etc.

✔️Beverages:
coffee and cocoa are the common beverages obtained from the flowering plants.

✔️Medicines:
Some of the important medicinal plants are quinine, belladonna, Ashwagandha, etc.

✔️Timber:
many angiosperms particularly dicot yield valuable hardwood which is used as Timber e.g., Teak, Oak, Sheesham, Sandalwood, etc.

✔️Fibres:
Fibres of different qualities are obtained from various species of flowering plants e.g., Textile fibres are obtained from cotton.

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