How do mycorrhizae improve the growth of trees?In what way(s) are the root nodule and mycorrhizalsymbioses similar? In what major way do they differ?
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How do mycorrhizae improve the growth of trees?
In what way(s) are the root nodule and mycorrhizal
symbioses similar? In what major way do they differ?
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- How are mycorrhizae and root nodules similar? How are they different?How is the mycorrhizal association helpful in absorption of water and minerals in plants?Mycorrhizae enhance plant nutrition mainly by(A) absorbing water and minerals through the fungal hyphae.(B) providing sugar to root cells, which have no chloroplasts.(C) converting atmospheric nitrogen to ammonia.(D) enabling the roots to parasitize neighboring plants
- The greatest difference in health between two groups of plantsof the same species, one group with mycorrhizae and one groupwithout mycorrhizae, would be in an environment(A) where nitrogen-fixing bacteria are abundant.(B) that has soil with poor drainage.(C) that has hot summers and cold winters.(D) in which the soil is relatively deficient in mineral nutrientsWhich of the following is not a way in which antifungaldrugs are effective?(a) They interfere with nucleic acid synthesis.(b) They increase plasma membrane permeability causingexcessive leakiness of essential substances.(c) They can impair the mitotic spindle apparatus.(d) They can induce mycorrhizae production.(e) None of the aboveA group of researchers run an experiment to determine the effect of mycorrhizae (a fungus) on plant growth. The researchers set up three experimental groups: A large amount of mycorrhizae is applied to the plants in group 1 a smaller amount of mycorrhizae is applied to the plants in group 2, and no mycorrhizae is applied to the plants in group 3. Which group(s) is/are the experimental group(s)? More than one answer may be correct. Select all that apply. O Group 3 Group 2 Group 1
- There are some plants such as Indian pipe and orchids that do not have chlorophyll, yet they are connected to the mycorrhizal web. What would you suspect their relationship to be?Plant roots receive all of the following from the symbiotic association with fungi except: O carbohydrates (sugars) soil nutrients (namely P) O increased water uptake O protection from soil diseasesFungal reproduction: Provide name of structures in photo A and B and describe if the structure is involved in asexual or sexual reproduction Photo A below Photo B below 667 um
- Which of the following is an adaptation thatenhances the uptake of water and minerals byroots?(A) mycorrhizae(B) pumping through plasmodesmata(C) active uptake by vessel elements(D) rhythmic contractions by cells in the root cortexWhich of the following is true of mychrrhizae? 1. The fungal hyphae of ectomycorrhizae form arbuscles. 2. Ectomycorrhizae penetrate the cytoplasm of root cells. 3. Endomycorrhizal fungal hyphae form a dense mantle ensheathing roots. 4. Ectomycorrhizae are found in many crop plants such as wheat and maize. 5. Ectomycorrhizal fungal hyphae form a dense mantle ensheathing roots.Ecologists often attempt to introduce new plants to restore degraded land. In an arid climate, scientists recommend introducing plants with arbuscular mycorrhizae. How would the mycorrhizae increase the plants’ survival compared to plants without mycorrhizae?