793908
Descrição
FlashCards por caitriona.mcgett, atualizado more than 1 year ago
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Criado por caitriona.mcgett
mais de 10 anos atrás
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| Questão | Responda |
| name and explain the two types of reproduction. | Asexual- Only one parent. Sexual- Two parents. |
| what is fertilisation | the fusion between the male and female gametes to produce a zygote |
| name a plant that reproduces asexually | the strawberry plant, daffodils or tulips |
| whats the difference between how a strawberry plant reproduces and how a daffodil reproduces? | strawberries use runners (new stems ) daffodils use bulbs |
| What is the name of the male organs of a flower? | stamens |
| what is the name of the female organs of the flower? | carpels |
| what do sepals do? | protect the flower before it blooms |
| what attracts insects to a flower | the petals |
| what do stamens do | produce pollen containing the male gamete |
| what do the carpels do | produce eggs in the ovary |
| name and explain the two parts of a stamen | filament- stalk of stamen, supports anther. anther- produces pollen grains which contain the male gamete |
| name and explain the three parts of the carpel | stigma-where the pollen lands style- connects stigma to ovary ovary- produces the egg |
| name the five stages of reproduction in the flowering plant | pollination fertilisation seed formation seed dispersal germination |
| what is pollination | the transfer of pollen from the stamen to the carpel |
| name the two ways a plant can be pollinated | wind or insect |
| name the five stages of fertilisation | 1. once pollen has landed on the carpel a tube grows out of the pollen grain 2. this tube grows down to the ovule in the ovary ( the ovule contains the egg cell) 3.the male gamete passes down the pollen tube and fuses with the egg 4. the zygote is formed 5. the zygote develops into a new plant |
| what is fertilisation | the fusion between the male and female gametes to produce a zygote |
| name the 3 stages of seed and fruit formation | one fertilisation occurs the fertilised ovule becomes a seed at the same time the sepals stamen and petals fall of the flower the ovary swells to become the fruit, the fruit protects the seeds |
| name the 4 things a seed consists of | a protective outer coat called the testa a baby shoot called the plumule a baby root called the radical a food supply |
| name the four main methods of dispersal and give an example of each | wind-dandelion animal-raspberry water- water lily self- wallflowers |
| what is germination | the growth of a seed into a new plant |
| what 3 things do seeds need to germinate | oxygen water correct temperature |
| experiment to show that all 3 are nesescary for germination | 4 test tubes 1 with all three and the other 3 missing one factor eg. not given water |
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