Usman

Category: Learn Botany Quiz

  • The tissue that adds girth in a dicot stem is the:

    {“lesson_id”:5818,”category_id”:0,”topic”:””,”choices”:[“Stomatal guard cells”,”Vascular cambium”,”Spongy mesophyll”,”Root cap”],”correct”:1,”type”:”mcq”,”explain”:”Vascular cambium produces secondary xylem inward and secondary phloem outward.”}

  • Which xylem cells are typically dead at maturity?

    {“lesson_id”:5660,”category_id”:0,”topic”:””,”choices”:[“Root hairs”,”Tracheids and vessels”,”Sieve-tube elements”,”Companion cells”],”correct”:1,”type”:”mcq”,”explain”:”Conducting xylem elements lose their protoplast; the lignified wall remains as a pipe.”}

  • Most plants are autotrophs, which means they:

    {“lesson_id”:0,”category_id”:60,”topic”:”Introduction To Plant”,”choices”:[“Never use carbon dioxide”,”Make organic food using light (photosynthesis)”,”Ingest animals”,”Absorb only ready-made sugar from soil”],”correct”:1,”type”:”mcq”,”explain”:”Green plants fix CO2 into sugars using light energy.”}

  • Gymnosperm seeds are described as naked because they are:

    {“lesson_id”:0,”category_id”:94,”topic”:”02. Conifers (Gymnosperms)”,”choices”:[“Not enclosed in a true fruit (ovary)”,”Always microscopic”,”Never woody”,”Always eaten by fungi first”],”correct”:0,”type”:”mcq”,”explain”:”Ovules sit on cone scales, not inside a carpel.”}

  • Mosses and liverworts are grouped as:

    {“lesson_id”:0,”category_id”:107,”topic”:”04. Mosses And Liverworts”,”choices”:[“Bryophytes (non-vascular land plants)”,”Angiosperms”,”Fungi”,”Gymnosperms”],”correct”:0,”type”:”mcq”,”explain”:”Bryophytes lack true xylem/phloem and have a dominant gametophyte.”}

  • Fungi obtain nutrition as:

    {“lesson_id”:0,”category_id”:113,”topic”:”06. Fungi”,”choices”:[“Heterotrophs that absorb food (often after external digestion)”,”Photosynthetic autotrophs like leaves”,”Chemosynthetic deep-sea plants”,”Filter-feeding animals”],”correct”:0,”type”:”mcq”,”explain”:”Hyphae secrete enzymes and absorb products; they are not green plants.”}

  • A herbarium is:

    {“lesson_id”:0,”category_id”:68,”topic”:”Methods In Botany”,”choices”:[“A greenhouse heating system”,”A type of root”,”A collection of dried, labelled plant specimens”,”An algal bloom”],”correct”:2,”type”:”mcq”,”explain”:”Pressed specimens with collection data document names and distribution.”}

  • The main vegetative organs of a typical flowering plant are:

    {“lesson_id”:0,”category_id”:76,”topic”:”Plant Parts”,”choices”:[“Root, stem and leaf”,”Gill, stipe and cap”,”Spore, sorus and capsule”,”Holdfast, stipe and blade of kelp only”],”correct”:0,”type”:”mcq”,”explain”:”Reproductive organs are flowers (then fruit and seed).”}

  • Plant anatomy studies:

    {“lesson_id”:0,”category_id”:145,”topic”:”Areas Of Study”,”choices”:[“Only market prices”,”Only constellation names”,”Only bird migration”,”Internal structure of organs and tissues”],”correct”:3,”type”:”mcq”,”explain”:”Sections of root, stem and leaf show tissues such as xylem and mesophyll.”}

  • The root cap mainly protects the:

    {“lesson_id”:5813,”category_id”:0,”topic”:””,”choices”:[“Endodermis”,”Apical meristem”,”Vascular bundle”,”Root hair zone”],”correct”:1,”type”:”mcq”,”explain”:”The cap covers the root tip so the dividing apical meristem is not damaged as the root pushes through soil.”}