Angios - gymnos

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Angios - gymnos

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Angios - gymnos

  1. 1. There are so many plants and trees that surround us.Plants and trees not only provide us with food, fuelsand many other important things but are also a sourceof fresh air and joy that surrounds us everyday.
  2. 2. There exist so many different types of plants andtrees, which have tiny differences among theircolor, structure, as well as numerous physiologicaldifferences.
  3. 3. There are two important groups of plants.Angiosperms are flowering Gymnosperms are non- plants flowering plants
  4. 4. Angiosperms are the largest group of plants in the plant kingdom The name angiosperm is Greek in origin. Angeion means vessel; sperma means seed. The seeds from these plants are formed inside containers called fruits.250,000 species.
  5. 5. Gymnosperms are plants that produce seeds in the open spaces ofcones. One good example of this is pine cones The Greek word gymno means naked, and sperma means seed. In evolution, gymnosperms are more primitive than angiosperms.
  6. 6. ANGIOSPERMS GYMNOSPERMSThis group consists of flowering Gymnosperms include all of theornamentals and all vegetables conifers: cedar, redwood, juniper,and edible fruits. cypress, fir, pine, and the giant sequoiasThey are also the source of the Softwoods such as pine and firworlds hardwoods. are used to make paper, lumber, and plywood.Angiosperms have ovules that are Gymnosperms do not produceenclosed in a carpel. flowersA carpel consists of a stigma, a Gymnosperms rely on thestyle, and an ovary. airborne transport of their pollenThe seeds of angiosperms Most gymnosperms lack vesselscontain either one or two in the xylem (wood).cotyledons-a seed leaf
  7. 7. Can you identify these plant types from the pictures below? GYMNOSPERM ANGIOSPERMANGIOSPERM ANGIOSPERM
  8. 8. 1. Class that includes plants whose seeds are not enclosed inan ovule GYMNOSPERMS2. Class of plants in which the mature seed is surrounded by theovule ANGIOSPERMS 3- Means a "naked seed" GYMNOSPERMS 4. This group is often referred to as softwoods. GYMNOSPERMS
  9. 9. 5. This group is often referred to as hardwoods. ANGIOSPERMS 6. A good example is an apple. ANGIOSPERMS 7. A good example is a pine tree. GYMNOSPERMS

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