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Roots and Shoots exam Flashcards

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Roots and Shoots exam
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  • Roots


    Primarily absorb water and nutrients, anchor the plant, and store materials.

  • Shoots


    Facilitate photosynthesis by capturing sunlight and carbon dioxide.

  • Chloroplast


    Organelle in plant cells that carries out photosynthesis.

  • What is the primary function of leaves?


    Photosynthesis and gas exchange.

  • Central Vacuole


    Large structure in plant cells that stores water, sugars, amino acids, and maintains turgidity.

  • What are the two types of cell walls in plant cells?


    Primary cell wall and secondary cell wall.

  • Plasmodesmata


    Channels between plant cells that allow for transport of materials and cell signaling.

  • What is the role of the middle lamella?


    A sticky substance made of pectins that glues plant cells together.

  • Tap Root


    The main dominant root from which all other roots project.

  • What are adventitious roots?


    Roots that develop from any parts of the plant rather than the root system.

  • Nodes


    Points on the stem where leaves and buds grow out.

  • What is the function of the apical bud?


    Primary growth point of the plant for vertical growth.

  • Petiole


    The stalk that connects the leaf blade to the stem.

  • What is the mesophyll?


    Interior tissue of the leaf where photosynthesis occurs.

  • Stomata


    Pores in the leaf that control gas exchange and regulate water loss.

  • What are prop roots?


    Adventitious roots that provide aerial support to the plant.

  • Pneumatophores


    Modified roots that allow for gas exchange.

  • What is a stolon?


    A modified stem that produces a new individual above ground.

  • Rhizome


    A modified stem that grows underground and produces a new individual.

  • What are stem tubers?


    Modified stems that store carbohydrates, like potatoes.

  • Bulb


    A modified leaf for food storage, like an onion.

  • What are tendrils?


    Modified leaves that help climbing plants grip surfaces.

  • Cactus Spines


    Modified leaves that provide defense.

  • What is the function of the cuticle on leaves?


    Prevents water loss from land plants.

  • Lateral Bud


    Buds at the nodes where leaves, branches, or flowers develop.

  • What is the role of the stem in plants?


    Supports vertical growth and transports materials.

  • What are the two parts of a leaf?


    Petiole and blade.

  • What is lignin?


    A polymer in secondary cell walls that helps maintain rigidity.

  • What are the main nutrients plants need from the soil?


    Nitrogen, phosphorus, potassium, and magnesium.