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1. Which of the following is dispersed by wind? Orange
Love Grass
Spear Grass
Calotropis Squirting Cucumber
Answer: CalotropisCalotropis is dispersed by wind (anemochory). In calotropis, a tuft of hair, called plume or coma develops as a crown of seeds. 2. Which of the following is dispersed by wind? Oxalis
Water Lily
Castor
Balsam
Clematis
Answer: ClematisClemantis is dispersed by wind (anemochory). In clemantis, the style becomes feathery. 3. Which of the following is not dispersed by wind? Orchids
Cinchona
Coconut Oroxylon
Drumstick
Answer: CoconutCoconut is dispersed by water (hydrochory). In coconut, a fibrous mesocarp is observed which encloses air, makes it buoyant and enables it to float.
4. The male flower of the hazel plant is known as the _______. corymb
capitulum
catkin
Answer: catkin 5. During _______, the pollen grains are transferred from the anthers of one flower to the stigma of another flower. cross-pollination self-pollination
Answer: cross-pollinationDuring the process of cross-pollination (allogamy) in a flowering plant, the pollen grains are transferred from the anthers of one flower to the stigma of another flower. 6. Which of the following is dispersed by animals? Acacia
Caesalpenia
Maple
Yam
Hogweed
Answer: HogweedHogweed is dispersed by animals (zoochory). Sticky, glandular hairs are observed in hogweed. 7. Which of the following is not dispersed by animals? Lotus Martynia
Boerhaavia
Tribulus
Guava
Answer: LotusLotus is dispersed by water (hydrochory). In lotus, a spongy thalamus is observed with fruitlets embedded in it. 8. In a bean, water is taken in through the _______. micropyle integument
cotyledon
Answer: micropyleA bean takes in water through a small opening called the micropyle. 9. Insects visit flowers in the search of _______. fragrance
water
nectar
Answer: nectarInsects visit flowers in the search of sweet nectar. 10. What is a seed called before it undergoes fertilization? Ovary
Ovule Embryo
Answer: OvuleA seed is called an ovule before it undergoes fertilization. 11. Which of the following is not dispersed by animals? Xanthium
Urena
Poppy Mimosa
Plumbago
Answer: PoppyPoppy is dispersed by wind (anemochory). 12. The fleshy base of a flower forming the top of the flower-stalk is called the _______. pedicel
peduncle
receptacle
Answer: receptacleThe fleshy base of a flower to which the different floral parts are attached is called the receptacle. It forms the top of the flower-stalk. It is also known as the thalamus. 13. During _______, the pollen grains are transferred from the anthers of a flower to the stigma of the same flower. self-pollination cross-pollination
Answer: self-pollinationDuring the process of self-pollination (autogamy) in a flowering plant, the pollen grains are transferred from the anthers of a flower to the stigma of the same flower. 14. Which of the following plants has a rhizome? Solomon's Seal Crocus
Daffodil
Tulip
Potato
Answer: Solomon's SealA rhizome is observed in Solomon's Seal. 15. Scientists conduct germination tests to study the average number of seeds in every hundred that are likely to germinate. True False
Answer: TrueGermination tests are conducted by scientists to study the average number of seeds in every hundred that are likely to germinate. 16. The conditions required for seeds to germinate are oxygen, water and warmth. True False
Answer: TrueThe conditions required for seeds to germinate are oxygen, warmth and water (moisture). 17. The hard wood in the center of a tree trunk is referred to as 'heartwood'. True False
Answer: True'Heartwood' is the hard wood in the center of a tree trunk. 18. In a flowering plant, fruits begin to form after the processes of pollination and fertilization. True False
Answer: TrueAfter the processes of pollination and fertilization in a flowering plant, fruits begin to form. 19. Even though a seed has been kept for several years, it will eventually germinate. True
False
Answer: FalseA seed which has been kept for several years will not germinate. 20. The growth of a pollen tube enables pollination to take place. True
False
Answer: FalseThe growth of a pollen tube enables the process of fertilization to take place. The pollen tube grows from a pollen grain. It moves down the style to fuse with an ovule.
Try the Quiz : School Science Quiz : Flowering Plants - II
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