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