Ncert- science – class 7-Chapter 1 -Nutrition in Plants 2 Welcome to your Ncert- science - class 7-Chapter 1 -Nutrition in Plants 2 1. Choose the correct statement with respect to symbiosis. In symbiotic relationship, organisms live together. In symbiotic relationship, organisms share shelter and nutrients. Lichen is an example of symbiosis All of the above None 2. Autotrophs can be differentiated from the heterotrophs in terms of the: All of the above Organization of the body or cell of that organism Mode of obtaining food Nature of the cell, i.e. prokaryotic or eukaryotic None 3. How is the plant benefited by the bacteria which takes shelter in the root of the plants? Both A and B The bacteria protects the plant from pathogens. The bacteria fixes the nitrogen for the plant. None of the above None 4. When an epidermal layer of a leaf is observed through a high-powered microscope, it shows that each stoma is surrounded by? Many guard cells. A single guard cell. A pair of epidermal cells. A pair of guard cells. None 5. is taken in through the tiny pores present on the surface of the leaves 6. A symbiotic association of an alga and a fungus is termed as a: Parasite Mycorrhiza Coral Lichen None 7. Which of the following pairs is not used during the process of photosynthesis? Light and chlorophyll CO2 and optimum temperature Oxygen and glucose Water and minerals None 8. Rhizobium is associated with Nitrogen fixation. Photosynthesis Carbon fixation. Respiration None 9. Which of these groups of words means the same thing? Heterotrophs and producers Autotrophs and carnivore Autotrophs and producers Autotrophs and consumers None 10. Natural system of classification employs Complexity of cell structure Organisation Complexity of body structure All the above None 11. The three basic components of any eukaryotic cell are Cell membrane, cytoplasm and nucleus Cell wall, chloroplast and mitochondria Cell wall, plasma membrane and cytoplasm Cell wall, vacuole and protoplasm None 12. Which is the characteristic of heterotrophs? Organisms that can provide energy to other organisms through food. Organisms that can store solar energy in food. Organisms that cannot prepare their own food. Organisms that prepare their own food. None 13. Guard cells are found in: Stomata Stamen Ovary Petals None 14. Insectivorous plants are adopted to soils: Deficient in nitrogenous compounds Rich in water Deficient in trace elements Dificient in water None 15. Which one of the following conditions need not be present for photosynthesis to proceed? Water Oxygen Chlorophyll Light None 16. Green plants can synthesize their own food. They are called 17. Pulses are rich in protein because of _____________ Rhizobium Insectivorous habit High requirement of nitrogen fertilizers. Green manuring None 18. A typical cell contain which of the following main components? All of the above Cytoplasm Cell membrane Nucleus None 19. Heterotrophs may be All of the above. Parasitic Holozoic Saprophytic None 20. Nitrite is oxidised to nitrate with the help of Nitrobacter Nitrococcus Thiobacillus Nitrosomonas 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.
