营养器官的变态（Metamorphosis of vegetative organs）.doc

营养器官的变态（Metamorphosis of vegetative organs） The sixth section, metamorphosis of vegetative organs First, the noun explanation 1. 2. 3. involucral bracts and abnormal homologous organ analogous organ 4. Two, judgment and correction 1. because of Rhus parasitic aphid in the leaves is a kind of abnormal phenomenon of gallnut. () 2. examples of metamorphosis occur in every organ of a plant. () 3. the xylem and phloem parts formed by extra cambium are called tertiary xylem and tertiary phloem. () 4. the fleshy roots of carrot and red (sweet potato) are derived from hypocotyl. () 5. carrot is an abnormal root, mainly eating its secondary phloem. () 6. parasitic roots of Cuscuta are adventitious roots. () 7. peanut and potato (potato) fruits are mature in the soil. () 8. the tendrils of pumpkins and grapes are stem tendrils. () The main organs of 9. asparagus, asparagus photosynthetic leafy stems. () 10. bamboo rhizome rhizome, lotus lotus root and rhizome. () 11. the main edible part of mature garlic is the enlarged axillary bud. () 12. the tendrils of the pea are lobular metamorphosis, belonging to the leaf tendril. () 13. the structure of insect catching insects is abnormal leaves. () Three fill in the blanks There are, 1., and three major types of metamorphosis. 2., there are often three kinds of aerial roots. 3. common underground stems can be divided into, and the four categories. There are six kinds of metamorphosis in the 4. leaves:,,,, and. 5. a radish fleshy taproot only, a sweet potato can produce several roots; this is because the latter is developed. 6. thickening of tuberous roots in sweet potato (Shan Yu) is due to the combined activity. 7. the fleshy root of beet is expanded and has structure, structure and structure. 8. the potato chips are abnormal, and the underground swelling of sweet potatoes is mostly metamorphosis. Four. Fill in the blanks 1. the extra cambium (secondary cambium) in the fleshy roots of beets. The xylem parenchyma cells in A. secondar