Usman

Category: Learn Botany Quiz

  • A fern prothallus is:

    {“lesson_id”:0,”category_id”:102,”topic”:”03. Ferns”,”choices”:[“A fungal cap”,”A type of seed”,”A woody cone”,”The small haploid gametophyte”],”correct”:3,”type”:”mcq”,”explain”:”The heart-shaped prothallus bears antheridia and archegonia.”}

  • Red algae are often found:

    {“lesson_id”:0,”category_id”:108,”topic”:”05. Algae”,”choices”:[“Only inside human lungs”,”In marine habitats; some are sources of agar”,”Only on glacier ice as trees”,”Only in deserts”],”correct”:1,”type”:”mcq”,”explain”:”Phycoerythrin lets many live deeper; agar and carrageenan come from red algae.”}

  • Germination is:

    {“lesson_id”:0,”category_id”:64,”topic”:”Life Cycle Of A Flowering Plant”,”choices”:[“Resumption of growth of the embryo into a seedling”,”Death of the sporophyte”,”Formation of pollen only”,”Leaf fall only”],”correct”:0,”type”:”mcq”,”explain”:”Water, oxygen and suitable temperature usually trigger germination.”}

  • Phototropism is growth:

    {“lesson_id”:0,”category_id”:75,”topic”:”Plant Growth And Development”,”choices”:[“Toward the centre of the Earth only as a fruit”,”Of fungi toward sugar only”,”Toward or away from light”,”Only at night in roots as flowers”],”correct”:2,”type”:”mcq”,”explain”:”Shoots are usually positively phototropic.”}

  • 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.”}

  • Vascular bundles in a typical monocot stem are:

    {“lesson_id”:5818,”category_id”:0,”topic”:””,”choices”:[“Confined to the root”,”Absent”,”In one ring with cambium”,”Scattered”],”correct”:3,”type”:”mcq”,”explain”:”Monocot stems generally have scattered closed bundles without a vascular cambium.”}

  • Accessory pigments mainly:

    {“lesson_id”:5734,”category_id”:0,”topic”:””,”choices”:[“Fix nitrogen”,”Broaden the wavelengths that can be used”,”Carry water in xylem”,”Replace stroma”],”correct”:1,”type”:”mcq”,”explain”:”Carotenoids and others pass extra energy to chlorophyll a.”}

  • Paleobotany studies:

    {“lesson_id”:0,”category_id”:59,”topic”:”Introduction To Botany”,”choices”:[“Fossil plants”,”Living marine fish”,”Human bones”,”Star formation”],”correct”:0,”type”:”mcq”,”explain”:”Paleobotany reconstructs ancient floras from fossils such as leaves and pollen.”}

  • Dicots typically have:

    {“lesson_id”:0,”category_id”:91,”topic”:”01. Flowering Plants”,”choices”:[“Spores instead of seeds”,”No flowers”,”Two cotyledons and net-veined leaves”,”One cotyledon and fibrous roots only”],”correct”:2,”type”:”mcq”,”explain”:”Most trees and beans are dicots (eudicots) with two cotyledons.”}

  • Ferns typically need water for sexual reproduction because:

    {“lesson_id”:0,”category_id”:102,”topic”:”03. Ferns”,”choices”:[“Spores cannot land on soil”,”Sperm usually swim to the egg”,”They lack cell walls”,”They have no chlorophyll”],”correct”:1,”type”:”mcq”,”explain”:”Flagellated sperm need a film of water, so many ferns live in moist sites.”}