Concept explainers
Concept introduction: Parenchyma, collenchyma, and sclerenchyma are the simple tissues with each consisting of one type of cell. Sclerenchyma cells are variably shaped and they will die once they are matured. They have thick cell wall which is made up of
Answer to Problem 1SQ
Correct answer: In plants, fibers are a type of sclerenchyma cell. Therefore, option b. is correct.
Explanation of Solution
Reasons for correct statement:
Fibers and sclereids are made up of sclerenchyma cells. Fibers are long, tapered sclerenchyma cells that occur in bundles and they will support and protect the vascular tissues. These cells die at the stage of maturity and their lignin reinforced walls will remain and support the plant.
Option b. is given as “sclerenchyma”. As the plant fibers are made up of sclerenchyma cells option b. is correct.
Reasons for the incorrect statements:
Option a. is given as “parenchyma”.
Parenchyma is made up of parenchyma cell which has a thin and flexible cell wall. It has specialized roles that varies with the location of the plant. Therefore, option a. is incorrect.
Option c. is given as “collenchyma”.
Collenchymas remains alive in mature tissues and its cells have sturdy, flexible walls that support fast-growing plant parts. Therefore, option c. is incorrect.
Option d. is given as “mesophyll”.
Mesophyll is a photosynthetic parenchyma that is filled with chloroplast. Therefore, option d. is incorrect.
Hence, options a., c., and d. are incorrect.
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Chapter 27 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
- Which 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_forwardThe first formed primary xylemelements are called ___________.A. MetaxylemB. ProtoxylemC. Xylem fibresD. Xylemp arenchymaarrow_forwardThe epidermis___________. a. Is made of lignified cells that created a protective layer over the surface of a plant b. Expands throughout secondary growth c. Generates all trichomes d. Prevents gas and water exchange with the environmentarrow_forward
- Cells of the ________ contain chloroplasts. a. epidermis b. vascular tissue c. stomata d. mesophyllarrow_forward_____ forms the outer protective covering of a plant.a. Meristem tissueb. Ground tissuec. Vascular tissued. Epidermal tissuearrow_forwardWhich of the following structures is the most prominent inside the epidermal cell of Rhoeo discolor leaf? a. chloroplast b. chromoplast c. vacuole d. cell wall e. nucleusarrow_forward
- The seed coat forms from the______ . a. integuments c. endosperm b. coleoptile d. sepalsarrow_forwardThe primary growth of a plant is due to the action of the ________. a. lateral meristem b. vascular cambium c. apical meristem d. cork cambiumarrow_forwardThese plant cells have only primary cell walls and are important as the site of photosynthesis: Select one: O a. Collenchyma Ob. Sclerenchyma O c. Parenchyma d. Fibers e. Scleridsarrow_forward
- What pathway(s) via which that ion could be taken by plant roots?_____________ A. Apoplast B. Symplast C. Symplast/Apoplast combined pathway D. Either of above E. A or Barrow_forwardLike any multicellular organism, a plant is characterized by cellular differentiation, the specialization of cells in structure and function. Which of the following below majois NOT the one of the types of plant cells? Lütfen birini seçin: O a. Parenchyma O b. Sclerenchyma O c. Collenchyma O d. Epitheliaarrow_forwardThese plant cells are are distinctive for having thickened corners of the cells when examined as a cross-section: Select one: a. Collenchyma b. Sclerenchyma c. Parenchyma d. Fibers e. Scleridsarrow_forward
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning