Usman

Category: Learn Botany Quiz

  • Light-dependent reactions take place in the:

    {“lesson_id”:5734,”category_id”:0,”topic”:””,”choices”:[“Stroma”,”Mitochondrial matrix”,”Nucleus”,”Thylakoid membranes”],”correct”:3,”type”:”mcq”,”explain”:”Photosystems and the electron transport chain sit in the thylakoid membrane.”}

  • A vascular bundle contains:

    {“lesson_id”:5660,”category_id”:0,”topic”:””,”choices”:[“Only stomata”,”Only palisade cells”,”Xylem and phloem (often with cambium)”,”Only pith”],”correct”:2,”type”:”mcq”,”explain”:”Xylem and phloem together form the bundle; in dicot stems a fascicular cambium may lie between them.”}

  • Vascular plants are distinguished by:

    {“lesson_id”:0,”category_id”:60,”topic”:”Introduction To Plant”,”choices”:[“Having no embryos”,”Xylem and phloem for long-distance transport”,”Living only in boiling springs”,”Complete absence of chlorophyll”],”correct”:1,”type”:”mcq”,”explain”:”Vascular tissues allow large body size on land.”}

  • Many conifers are well adapted to:

    {“lesson_id”:0,”category_id”:94,”topic”:”02. Conifers (Gymnosperms)”,”choices”:[“Only deep ocean”,”Boiling hydrothermal vents”,”Cold or dry habitats (needles, thick cuticle, resin)”,”Complete darkness”],”correct”:2,”type”:”mcq”,”explain”:”Needle leaves and resins help on poor soils and in boreal climates.”}

  • Liverworts often have a flattened body called a:

    {“lesson_id”:0,”category_id”:107,”topic”:”04. Mosses And Liverworts”,”choices”:[“Woody stem”,”Thallus”,”Frond with sori”,”Needle leaf”],”correct”:1,”type”:”mcq”,”explain”:”Many liverworts are thalloid; others are leafy.”}

  • Yeasts are:

    {“lesson_id”:0,”category_id”:113,”topic”:”06. Fungi”,”choices”:[“Green algae”,”Always multicellular mushrooms”,”Fern prothalli”,”Mostly unicellular fungi”],”correct”:3,”type”:”mcq”,”explain”:”Saccharomyces is used in baking and brewing.”}

  • DNA barcoding in plants is a method to:

    {“lesson_id”:0,”category_id”:68,”topic”:”Methods In Botany”,”choices”:[“Measure wind speed”,”Identify species using short genetic sequences”,”Paint flowers”,”Count stomata by hand only”],”correct”:1,”type”:”mcq”,”explain”:”Chloroplast or nuclear markers help confirm difficult identifications.”}

  • 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.”}

  • Economic botany emphasises:

    {“lesson_id”:0,”category_id”:145,”topic”:”Areas Of Study”,”choices”:[“Only volcanic rocks”,”Only deep-sea vents”,”Plants useful to people (crops, fibres, drugs)”,”Only extinct dinosaurs”],”correct”:2,”type”:”mcq”,”explain”:”It links botany to agriculture, forestry and pharmacy.”}

  • Pneumatophores are roots specialised for:

    {“lesson_id”:5813,”category_id”:0,”topic”:””,”choices”:[“Storage of starch”,”Climbing”,”Aeration in waterlogged soil”,”Nitrogen fixation”],”correct”:2,”type”:”mcq”,”explain”:”Breathing roots (pneumatophores) of mangroves grow upward and have lenticels for gas exchange.”}