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