Ncert – science – Class 7- Chapter 8 – Reproduction in Plants Welcome to your Ncert - science - Class 7- Chapter 8 – Reproduction in Plants 1. Which of the following statements is/are true for sexual reproduction in plants? Plants are obtained from seeds.Two plants are always essential.Fertilisation can occur only after pollination.Only insects are agents of pollination.Choose from the options given below. (i) and (iv) (i) and (iii) (ii) and (iii) (i) only None 2. Reproduction, by means of fragments, is seen in yeast ferns fungi spirogyra None 3. A is transfer of B from the C to the D of a flower. Which of the following options best replaces A, B, C and D, respectively? Pollination, pollen, anther, stigma Fertilisation, ovule, ovary, anther Pollination, ovule, ovary, anther Fertilisation, pollen, anther, stigma None 4. The ovaries of different flowers may contain one to many ovules. many ovules. only one ovule. only two ovules. None 5. Which of the following is true about unisexual flowers? a. They contain either pistil or stamen.b. They are always cross pollinated.c. They are means of asexual reproduction.d. Petunia is an example of unisexual flower. a and b c and d a, b and d a and c None 6. Match the following PlantSeedMapleWinged seedMadarSpiny seed</ 1 - c, 2 - a, 3 - b, 4 - d 1 - d, 2 - c, 3 - b, 4 - a 1 - b, 2 - a, 3 - d, 4 - c 1 - a, 2 - d, 3 - c, 4 - b None 7. ____a____ consists of stigma, ____b____ and ovary. The ovary contains one or more ____c____. The ____d____ is formed in an ovule which fuses with the male gamete to form a _____e_____. Which of the following options best replaces a, b, c, d and e, respectively? Pistil, style, ovules, egg and zygote Pistil, style, ovules, gamete, embryo Pistil, filament, ovules, egg and zygote Stamen, filament, ovules, gamete, zygote None 8. For which of the following plants are stem cuttings used for vegetative propagation? a. Champab. Rosec. Bryophyllumd. Potato a and d c and d a, b and d a and b None 9. Which of the following parts of a plant take part in sexual reproduction? FlowerSeedFruitBranchChoose the correct answer from below. (iii) and (iv) (i) and (ii) (i), (ii) and (iii) (ii), (iii) and (iv) None 10. Male gametes in pollen grain reach to female gamete by Funicular Ovule tube Ovary tube Pollen tube None 11. Pollination refers to the transfer of pollen from anther to ovule. transfer of pollen from anther to stigma. transfer of male gametes from anther to stigma. transfer of pollen from anther to ovary. None 12. The ‘eye’ of the potato plant is what the root is to any plant. the anther is to stamen. the bud is to a flower. the bud is to Bryophyllum leaf. None 13. Lila observed that a pond with clear water was covered up with green algae within a week. By which method of reproduction did the algae spread so rapidly? Sexual reproduction Budding Pollination Fragmentation None 14. What does fusion of male and female gametes give rise to? Seed Zygote Spore Embryo None 15. Which part of the flower forms the pulpy fruit after fertilisation? Ovule None of these Ovary Sepals None 16. Which of the following organism reproduce by budding? Yeast Bread mold Bacteria Opuntia None 17. Fungi on bread piece grow from fragments buds gametes spores None 18. Reproduction in Bryophyllum takes place by its Stem Flower Root Leaf None 19. Seeds of drumstick and maple are carried to long distances by wind because they possess spiny seeds. large and hairy seeds. winged seeds. long and ridged fruits. None 20. Choose the pair of words which bears the same relationship between them as in the given pair of words: Eye : Potato : : __________ Bud : Bryophyllum Stigma : Pistil Bud : Flower Leaf : Plant None Time's up Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
