WebThe epidermis (from the Greek ἐπιδερμίς, meaning "over-skin") is a single layer of cells that covers the leaves, flowers, roots and stems of plants. It forms a boundary between the plant and the external environment. The epidermis serves several functions: it protects against water loss, regulates gas exchange, secretes metabolic ... WebA single layer of flattened cells on the outer surface of an herbaceous stem defines the. A. cortex. B. pith. C. epidermis. D. apical meristem. E. periderm. b. All of the following would be found in epidermis tissue except one. Choose the exception. A. guard cells B. companion cells C. cuticle D. stomata E. trichomes.
plant test 2 ch 3 Flashcards Quizlet
WebOther leaves may have small hairs (trichomes) on the leaf surface. Trichomes help to deter herbivory by restricting insect movements, or by storing toxic or bad-tasting … WebTrichome. Most dicot leaves have trichomes, hairs that extend from the epidermal cells of the upper and lower epidermis. Trichomes can also be present on dicot stems, as well … cynthia tolbert superintendent
Three simple methodologies for the microanatomical study of dicot …
WebA) only leaves have phloem and only roots have xylem B) root cells have cell walls and leaf cells do not C) a waxy cuticle covers leaves but is absent from roots D) vascular tissue is found in roots but is absent from leaves E) leaves have epidermal tissue but roots do not C) a waxy cuticle covers leaves but is absent from roots WebThe slender stalk that connects the flattened leaf blade to the stem in most dicots is the A. meristem. B. petiole. C. stele. D. receptacle. E. vein. A 7. The tissue layers in the middle of a leaf, between the upper and lower epidermis, are called the A. mesophyll tissue. B. ground tissue. C. protoderm tissue. D. parenchyma. E. collenchyma C WebDicot stems with primary growth have pith in the center, with vascular bundles forming a distinct ring visible when the stem is viewed in cross section. The outside of the stem is covered with an epidermis, which is covered by a waterproof cuticle. cynthia tolbert author