Flashcards
CHAPTER 14: SEXUAL REPRODUCTION IN FLOWERING PLANTS
Cards in this deck (27)
- 1What is asexual reproduction?Asexual reproduction is the production of offspring by an individual without the use of gametes or a partner
- 2What is sexual reproduction?sexual reproduction involves a male and a female, producing sex cells called gametes. the two gametes unite and give rise to a new organism.
- 3what is a gamete?a gamete is a cell which cannot develop any further until it unites with another gamete from the opposite sex
- 4what are the male organs in a plant called?the male organs in a plant are called stamens
- 5what are the female organs in plant called?the female organs in a plant are called carpels
- 6where are the male gametes (stamen) of a plant produced?the male gametes ( stamen) are produced inside the anther
- 7where are the female gametes of a plant produced?the female gametes of a plant are produced in the ovary
- 8what is the function of the filament?the filament holds the anther in the best position to enable it to release its pollen grains
- 9what is the function of the sepal?the sepal protect the flower when it is in a bud stage against insects fungi and frost
- 10what is the function of the petal?the petal is often brightly coloured and scented to attract insects and may produce nectar
- 11what are the three parts of the carpel?the three parts of the carpel are the ovary, style and stigma
- 12what are the two parts of the stamen?the two parts of the stamen are the filament and the anther
- 13what are four examples of monocotyledous flowering plants?four examples of monocot flowers are grasses, wheat, maize and rice
- 14what are four examples of dicotyledonous plants?four examples of dicotyledonous plants are sweet pea, wallflower, primrose and dandelion
- 15what are the two types of flowering plants?monocotyledonous an dicotyledonous plants
- 16what is a monocotyledonous planta monocot plant is a plant that only contains one cotyledon
- 17what is a dicot plant?a dicot plant is a plant which contains two cotyledons
- 18what is a cotyledon?a cotyledon is a seed leaf that stores food
- 19what is a leguminous plant?a leguminous plant contains its seeds in pods
- 20what are three examples of leguminous plants?peans beans and lupins are all leguminous plants
- 21what are the general features of a monocot flower?monocot flowers are tiny and dull in colour, have no petals or sepals, their reproductive organs are in bracts, have feathery stigmas and three stamens, and two styles
- 22what are the features of dicot flowers?dicot flowers have 5 sepals joined together, 5 petals, a standard, wings, a keel, a single carpel, and ten stamens and 9 filaments
- 23what is pollination?pollination is the transfer of pollen from the anther to a ripe stigma
- 24what is self pollination?self pollination is when pollen is carried from the anther to the stigma of a flower of the same plant
- 25what is cross pollination?cross pollination is when pollen is carried from the anthers of one flower to the stigma of a flower on another plant of the same species
- 26how do plants prevent self pollination?plants prevent self pollination by situating the stigma higher than the anthers, some plants are also self sterile, and the ovules mature before the anthers ripen and split open
- 27how are plants adapted to insect pollination?insect pollinated flowers usually have large brightly coloured petals which are scented and often have nectaries, dark lines called honey guides on petals, anthers tend to be small and located inside the flower where insects tend to brush up against them, some plants produce pollen grains that are sticky and smooth or covered with spiky hairs in order to increase the chances of the pollen attaching to the insects
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- grade 10 BIOLOGY (CHAPTER 14 - SEXUAL REPRODUCTION IN FLOWERING PLANTS) Flashcards on CHAPTER 14: SEXUAL REPRODUCTION IN FLOWERING PLANTS, created by albetix on 09/03/2014.
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- albetix · Mar 2014
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- Dec 16, 2016
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