Usman

Category: Learn Botany Quiz

  • Phytoplankton are important because they:

    {“lesson_id”:0,”category_id”:108,”topic”:”05. Algae”,”choices”:[“Pollinate conifer cones only”,”Build only granite”,”Produce much of Earth’s oxygen and form the base of aquatic food webs”,”Replace all xylem”],”correct”:2,”type”:”mcq”,”explain”:”Microscopic algae and cyanobacteria drive marine primary production.”}

  • Self-pollination means pollen travels:

    {“lesson_id”:0,”category_id”:64,”topic”:”Life Cycle Of A Flowering Plant”,”choices”:[“Only into root hairs”,”From one species to another kingdom”,”From anther to stigma of the same flower or same plant”,”Only by ocean currents”],”correct”:2,”type”:”mcq”,”explain”:”Cross-pollination is between different plants and increases genetic mixing.”}

  • Gravitropism (geotropism) is a response to:

    {“lesson_id”:0,”category_id”:75,”topic”:”Plant Growth And Development”,”choices”:[“Colour only”,”Magnetic north in petals”,”Sound”,”Gravity”],”correct”:3,”type”:”mcq”,”explain”:”Roots grow down (positive); shoots grow up (negative gravitropism).”}

  • 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.”}

  • A potato tuber is a modified:

    {“lesson_id”:5818,”category_id”:0,”topic”:””,”choices”:[“Leaf”,”Root”,”Stem”,”Flower”],”correct”:2,”type”:”mcq”,”explain”:”Eyes of a potato are axillary buds, showing it is a swollen underground stem (tuber).”}

  • True or false: Photosynthesis converts light energy into chemical energy.

    {“lesson_id”:5734,”category_id”:0,”topic”:””,”choices”:[“True”,”False”],”correct”:0,”type”:”true_false”,”explain”:”Light energy is stored in sugars (and ATP/NADPH during the light phase).”}

  • Ecology of plants is the study of:

    {“lesson_id”:0,”category_id”:59,”topic”:”Introduction To Botany”,”choices”:[“Only cell nuclei”,”Only flower colour pigments”,”How plants interact with each other and their environment”,”Only laboratory glassware”],”correct”:2,”type”:”mcq”,”explain”:”Plant ecology covers communities, succession, climate and other interactions.”}

  • The male part of a flower is the:

    {“lesson_id”:0,”category_id”:91,”topic”:”01. Flowering Plants”,”choices”:[“Stamen”,”Carpel (pistil)”,”Sepal only”,”Peduncle only”],”correct”:0,”type”:”mcq”,”explain”:”Stamens (anther + filament) produce pollen.”}

  • Young coiled fern leaves are called:

    {“lesson_id”:0,”category_id”:102,”topic”:”03. Ferns”,”choices”:[“Thalli of liverworts”,”Acorns”,”Fiddleheads (circinate vernation)”,”Cones”],”correct”:2,”type”:”mcq”,”explain”:”Fronds unroll from the crozier or fiddlehead.”}

  • A seaweed holdfast mainly:

    {“lesson_id”:0,”category_id”:108,”topic”:”05. Algae”,”choices”:[“Anchors the thallus to rock”,”Fixes nitrogen in nodules”,”Produces seeds”,”Absorbs soil minerals like a tap root”],”correct”:0,”type”:”mcq”,”explain”:”Holdfasts attach; they are not equivalent to vascular plant roots.”}