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10 Cards in this Set
- Front
- Back
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WHY ARE FLOWERS IMPORTANT IN A PLANT? |
BECAUSE FLOWERS ARE REPRODUCTIVE STRUCTURES OF THE PLANTS. THEY CONTAIN THE REPRODUCTIVE ORGANS WHICH PRODUCE THE MALE AND FEMALE SEX CELLS, OR GAMETES. MALE GAMETES ARE CONTAINED IN POLLEN GRAINS, AND FEMALE GAMETES ARE OVULES. |
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WHAT IS POLLINATION? STATE ITS TYPES. |
TRANSFER OF POLLEN GRAINS FROM ANTHER TO THE STIGMA IS CALLED POLLINATION. THERE ARE 2 DIFFERENT TYPES: SELF-POLLINATION AND CROSS-POLLINATION. |
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EXPLAIN CROSS-POLLINATION AND SELF-POLLINATION. |
CROSS-POLLINATION IS A TRANSFER OF POLLEN FROM ANTHER TO STIGMA OF TWO DIFFERENT FLOWERS OF DIFFERENT PLANTS BUT SAME SPECIES. SELF-POLLINATION IS TRANSFER OF POLLEN FROM ANTHER TO STIGMA OF THE SAME FLOWER OR DIFFERENT FLOWER OF THE SAME PLANT OF THE SAME SPECIES. |
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WHAT IS WIND POLLINATION? |
WIND POLLINATION IS WHEN THE POLLEN GRAINS OF SOME FLOWERS ARE NOT CARRIED BY THE INSECTS, BUT BY THE WIND. THE GRAINS OF THOSE FLOWERS ARE NOT STICKY, BUT SMOOTH AND VERY LIGHT SO THAT THEY CAN BE BLOWN OVER LONG DISTANCES BY AIR CURRENTS. |
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WHAT ARE THE FEATURES OF WIND-POLLINATED FLOWERS? |
* SMALL FLOWERS * ANTHERS AND STIGMAS HANG OUTSIDE * FEATHERY STIGMA * NO OR LITTLE COLORS TO PETALS * NO FRAGRANCE * NO NECTAR |
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WHAT ARE THE FEATURES OF INSECT-
POLLINATED FLOWERS? |
* BIG FLOWER * ANTHERS AND STIGMA ARE IN THE FLOWER * STICKY STIGMA * PLEASANT FRAGRANCE * BRIGHTLY COLORED * SWEET NECTAR |
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DESCRIBE STAMEN AND PISTIL. |
STAMEN IS A MALE REPRODUCTIVE ORGAN. IT CONSISTS OF ANTHER AND FILAMENT. PISTIL IS A FEMALE REPRODUCTIVE ORGAN. IT CONSISTS OF STIGMA, STYLE AND OVARY. |
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DESCRIBE SEPAL AND PETAL. |
SEPALS ARE SMALL LEAVES LOCATED DIRECTLY UNDER A FLOWER. THEY PROTECT THE FLOWER IN BUD CONDITION. SOMETIMES THEY ARE GREEN IN COLOR FOR PHOTOSYNTHESIS. PETAL IS ONE OF THE LEAFY STRUCTURES THAT MAKE THE FLOWER. THEY ATTRACT INSECTS FOR POLLINATION AND ARE BRIGHTLY COLORED. |
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WHAT IS SEED DISPERSAL? WHY IS IT NEEDED? |
SEED DISPERSAL INVOLVES THE SCATTERING OF SEEDS WHEN THEY ARE CARRIED AWAY FROM THE PARENTAL PLANT. THIS IS NEEDED SO THAT THE NEW PLANTS WILL NOT BE OVERCROWDED WHEN THEY GROW OR GERMINATE. |
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WHAT ARE THE DIFFERENT WAYS OF SEED DISPERSAL? |
THERE ARE 4 DIFFERENT WAYS TO DISPERSE A FRUIT WITH ITS SEEDS: 1. BY WIND 2. BY EXPLOSION 3. BY ANIMALS 4. BY WATER |
