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