Alstonia) are present. Secondary phloem. Secondary phloem, like secondary xylem, is a complex tissue. However, the cortex can be defined as a primary ground tissue between the epidermis and vascular bundles in a stem [12]. The Secondary Xylem is not a part of the Bark and is located beneath the Vascular Cambium, far towards the inner part of the stem. The latter designates all tissues outside the vascular cambium. Vascular Cambium produces new xylem cells to the inside and new phloem cells to the outside 6. Explanation: No explanation available. Answer to Heartwood and sapwood consist ofa. secondary phloem.e. secondary xylem.d. For extrastelar secondary growth the cork cambium or … In secondary state, it consists of secondary phloem and all tissues outside it. Phelloderm. Meristems and Secondary Growth 5. The periderm includes (a) secondary phloem (b) cork (c) cambium (d) all of these. periderm.c. Contributors and Attributions; In roots, the formation of both secondary meristems involves the pericycle. The functional phloem … Related Questions: Male gemetes are flagellated in : Pollen tablets are avalable in the market for: The periderm composed of three components: (1) Phellogen, (2) Phellem and (3) Phelloderm. and shrubs, the zone between the periderm and the secondary phloem is often referred to as ‘cortex’. Periderm —cork cambia, cork 7. (1). Answer and Explanation: 33. Periderm, which includes, Cork. In mature barks a large quantity of sclerenchyma, phloem fibres and sclereids (e.g. Secondary phloem can remain active over several growth cycles. Correct Answer: all of these. The periderm includes . During the secondary growth in both stem and root, the peripheral tissues like epidermis, hypodermis and cortex are replaced by a new secondary tissue called the Periderm (bark). Cork Cambium. Beyond the cortex, the first periderm layer has formed. bark.b. Secondary Phloem has the same origin as secondary xylem, namely, the vascular cambium. It can be distinguished into outer non-living and inner living parts. In this sense it includes periderm, cortex, primary and secondary phloem. Bark —includes the periderm, patches of The term periderm is more distinct than bark. This is a closer view of the cambium and phloem from cottonwood. (c): Extra stelar secondary growth means growth in the cortical region, external to slele. Lenticels are openings in the bark of a tree that allows gaseous exchange. cork.. There are bands of phloem fibers in the secondary phloem and clusters of fibers further out into the cortex. Options (a) cork (b) secondary phloem (c) cambium (d) all of these. Cells displaced towards the outside of the vascular cambium differentiate as phloem. Be the first to write the explanation for this question by commenting below. Most of the phloem parenchyma cells are filled with starch grains. 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