Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 27, Problem 3SQ
Summary Introduction
Concept Introduction: The phloem of the plant cell is composed of sclerenchyma, parenchyma, sieve elements and companion cells. The sieve element and the companion cells are found closely associated with each other. They are highly specialized type of elongated cells found in the phloem tissue of flowering plants.
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Students have asked these similar questions
Which of the following cell types remain alive in matureplant tissue?a. sclerenchyma c. tracheidsb. sieve elements d. vessel elements
which of the following best describes the parenchyma tissue?
a. cells with moderately thick walls for flexibility
b. cells with very think walls with lignin for strength and support
c. cells that are long with tapered ends and cell walls with pits
d. cells that long and thin with large pores at their ends
e. cells with large spaces for water storage
Vascular tissues occur in which of the following plant organs?
a. Stems
b. Roots
c. Leaves
d. All of the Above
Chapter 27 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
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- Which tissue system provides a covering for the plant body? (a) ground (b) vascular (c) periderm (d) dermal (e) cortexarrow_forwardWhich of the following cell types forms most of the inside of a plant? a. meristem cells b. collenchyma cells c. sclerenchyma cells d. parenchyma cellsarrow_forwardWhich of the following statements is incorrect? a. Vascular bundles are arranged in a ring in the outer parts of monocot stems in whereas in eudicots they are scattered throughout the stem. b. The cuticle is a hydrophobic layer that covers the aerial part of plants c. Vascular bundle arrangement is different in stem and root. d. The epidermis and periderm form the dermal tissue of plants.arrow_forward
- Since you're done with your study of plant tissues, you may now answer the questions about them below. 1. How do meristems accomplish the production of new, mitotically healthy cells? 2. What is indeterminate growth in plants? 3. What is de-differentiation in plant cells?arrow_forwardMatch column B to column Carrow_forward6) Match the tissue on the left with the description of the function it generally performs for the plant on the right: a) phloem flexible support, such as in petioles and herbaceous stems. b) xylem forms an outer barrier for leaves, young stems and roots. c) collenchyma conducts water and dissolved nutrients from the roots to other plant tissues. support of vascular tissue in older woody plants and formation of very hard plant structures such as nut shells. d) periderm e) parenchyma metabolism and storage. f) sclerenchyma conducts molecules produced by the plant throughout the plant body. g) epidermis provides physical protection for woody plants. AP ACMIarrow_forward
- Compare collenchyma tissue to sclerenchyma tissue with regard to:a. the structure and composition of the cell wallb. functionsc. position in plantsarrow_forwardWhat is the term used to identify the multi-cellular ring of fibers surrounding each of the vascular bundles in a C3 leaf’s veination? Select one: a. fiber sheath b. collenchyma collar c. turgor ring d. stomatal sheath e. granum circlearrow_forwardMatch the following plant cells and tissues with their definition: - v Collenchyma A. grouped in strands and help support young parts of the plant shoot. They have unevenly thickened primary cell walls. - v Sugar-conducting cells of the phloem B. are alive at maturity, but lack organelles. Each sieve-tube element is connected to a companion cell by plasmodesmata. Water-conducting cells of the xyleem v Sclerenchyma C. The two types of water-conducting cells, tracheids and vessel elements, are dead and lignified at maturity. - v Parenchyma D. rigid due to thick secondary walls containing lignin, dead at functional maturity and play a role in support in the plant. E. cells are flexible and provide the most diversity of functions (such as photosynthesis)arrow_forward
- Determine the collective true-false status of the statements using the choices below. I. Sclereids are sclerenchyma cells that strengthen hard seed coats, and they also make pear flesh gritty.; II. In older stems and roots, a complex dermal tissue called endoderm replaces the epidermis.; III. Phloem consists of two types of cells: vessel elements and tracheids.; IV. Vessel elements and tracheids are alive in mature tissue. Only two (2) statements are true. All statements are true. None of the statements is true. Only three (3) statements are true. Only one (1) statement is true.arrow_forwardWhat structural features of guard cells foster their ability to form anopen pore in plant epidermal surfaces?a. thickened inner cell walls and radially oriented microfibrilsb. thickened outer cell walls and radially oriented microfibrilsc. thickened inner cell walls and longitudinal microfibrilsd. thickened outer cell walls and longitudinal microfibrilse. uniform thickness of cell walls and randomly arrangedmicrofibrilsarrow_forwardName the 2 major vascular tissues in plants and animals (and what is transported in each) Plants a. Xylcm b. Phloem Animals a. blood vessels b. ymphaticsarrow_forward
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