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