Ncert- science – class 7- Chapter 9 – Motion and Time 2 Welcome to your Ncert- science – class 7- Chapter 9 – Motion and Time 2 1. Vegetative propagation refers to the formation of new plants from Stem, leaves and flowers Stem, flowers and fruits Stem, roots and flowers Stem, roots and leaves None 2. Which one of the following parts of the plant when put into the soil is likely to produce a new plant? Part of a flower Pedicel A stem with a node Root hair None 3. The transfer of pollens from anther to stigma of the same flower or different flower of the same plant is called: Hybridization Cross-pollination Cross-breeding Self-pollination None 4. Asexual reproduction is seen in members of Kingdom. All of these Monera Plantae Animalia None 5. What are spores? New organisms growing from leaflets. Outgrowths from parent organism. Buds formed in long chains., Tiny cells protected by thick walls to survive unfavorable conditions. None 6. Fertilization is Fusion of male and female gametes Fusion of male gametes All of above. Fusion of female gametes None 7. The process in which organisms break into pieces is called Spore formation All of the above Budding Fragmentation None 8. The mode of vegetative reproduction in which scion and stock are tied is called Cutting Grafting Tissue culture Layering None 9. Which one is a dicotyledonous plant? Sugar cane Gram Wheat Banana None 10. Pollination refers to the: Transfer of female gametes from anther to stigma., Transfer of pollen from anther to ovary. Transfer of pollen from anther to ovule. Transfer of pollen from anther to stigma. None 11. ___________ is a life process that is not essential for an individual's survival but for survival of the species. Reproduction Growth Nutrition Respiration None 12. Which of the following do not produce asexual flower? Papaya Rose Corn Cucumber None 13. In which of the following modes of reproduction new plants are produced without seeds? Vegetative propagation Asexual reproduction BothAsexual reproductionand Vegetative propagation Sexual reproduction None 14. Which of the following is not correct regarding sexual reproduction? It involves only mitosis. It is usually biparental. It is a slow process. Gametes are always formed. None 15. The 'eye' of the potato plant is what The bud is to Bryophyllum leaf. The anther is to stamen. The root is to any plant. The bud is to a flower., None 16. The classification of the flowers as unisexual and bisexual is on the basis of: Presence of flowers at the tip of plant Presence of stamen and pistil in the flower Presence of anther and filament of plant Both A and C None 17. Clone are Sexually produced non-identical organisms Sexually produced identical organism Asexually produced identical organisms Asexually produced non-identical organisms None 18. In which of the following organisms fragmentation occurs? Spirogyra Yeast All of the above Bacteria None 19. In which of the following processes water is involved in the reproduction? Spore formation Fragmentation All of the above Budding None 20. The development of an offspring from any part of the body is called: All of the above Asexual reproduction Vegetative reproduction Sexual reproduction 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.
