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