Mindblown: a blog about philosophy.
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Legume crops are valued because many:
{“lesson_id”:0,”category_id”:77,”topic”:”Plants And People”,”choices”:[“Produce no protein”,”Fix carbon without chlorophyll”,”Host Rhizobium and enrich soil nitrogen”,”Grow only in total darkness”],”correct”:2,”type”:”mcq”,”explain”:”Beans, peas and lentils add protein and can improve soil N.”}
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Timber and paper mostly come from:
{“lesson_id”:0,”category_id”:77,”topic”:”Plants And People”,”choices”:[“Insect wings”,”Root hairs”,”Secondary xylem (wood) of trees”,”Pollen”],”correct”:2,”type”:”mcq”,”explain”:”Forestry harvests gymnosperm and angiosperm wood.”}
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Many traditional medicines are:
{“lesson_id”:0,”category_id”:77,”topic”:”Plants And People”,”choices”:[“Only table salt”,”Plant secondary metabolites (alkaloids, glycosides, oils)”,”Only synthetic plastics”,”Only distilled water”],”correct”:1,”type”:”mcq”,”explain”:”Aspirin traces to willow; morphine to opium poppy; quinine to Cinchona.”}
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Cotton fibre used in cloth is:
{“lesson_id”:0,”category_id”:77,”topic”:”Plants And People”,”choices”:[“Algal agar”,”Fungal hyphae”,”Wood tracheids”,”Epidermal hairs of the cotton seed”],”correct”:3,”type”:”mcq”,”explain”:”Gossypium seed trichomes are almost pure cellulose.”}
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The world’s staple cereals such as rice, wheat and maize are:
{“lesson_id”:0,”category_id”:77,”topic”:”Plants And People”,”choices”:[“Gymnosperm cones”,”Brown algae”,”Angiosperm grasses (Poaceae)”,”Mosses”],”correct”:2,”type”:”mcq”,”explain”:”Cereal grains feed most of humanity.”}
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True or false: The stem bears leaves at nodes.
{“lesson_id”:0,”category_id”:76,”topic”:”Plant Parts”,”choices”:[“True”,”False”],”correct”:0,”type”:”true_false”,”explain”:”Nodes are leaf attachment points; internodes lie between them.”}
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A tap root system has:
{“lesson_id”:0,”category_id”:76,”topic”:”Plant Parts”,”choices”:[“Only pneumatophores”,”Only aerial prop roots of maize”,”One dominant primary root”,”No main root, only a dense mat from the start”],”correct”:2,”type”:”mcq”,”explain”:”Carrot and many dicots keep a strong primary root.”}
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Stomata are pores mainly in the:
{“lesson_id”:0,”category_id”:76,”topic”:”Plant Parts”,”choices”:[“Heartwood”,”Leaf epidermis, bounded by guard cells”,”Pollen wall only”,”Root cap only”],”correct”:1,”type”:”mcq”,”explain”:”Guard cells regulate water loss and CO2 entry.”}
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Seeds develop from:
{“lesson_id”:0,”category_id”:76,”topic”:”Plant Parts”,”choices”:[“Ovules”,”Stipules”,”Petals”,”Lenticels”],”correct”:0,”type”:”mcq”,”explain”:”After fertilisation the ovule becomes the seed.”}
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Fruits primarily help in:
{“lesson_id”:0,”category_id”:76,”topic”:”Plant Parts”,”choices”:[“Photosynthesis in shade”,”Protecting seeds and often aiding dispersal”,”Forming root caps”,”N2 fixation”],”correct”:1,”type”:”mcq”,”explain”:”Fleshy fruits attract animals; winged fruits ride wind.”}
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