Concept explainers
To identify: The structure shown in micrograph A
Concept introduction: Vascular plants consist of two specialized tissues called as xylem and phloem that act as a conducting tube in plants for the transportation of water and sugar molecules throughout the plant. Xylem is a vascular tissue involved in the transportation of water and minerals from the root to the leaves of plants. It also provides mechanical support and storage to the plants. Xylem consists of two types of conducting cells namely tracheids and vessel elements. Both cells are together called as tracheary element.
To identify: The structure shown in micrograph B
Concept introduction: Vascular plants consist of two specialized tissues called as xylem and phloem that act as a conducting tube in plants for the transportation of water and sugar molecules throughout the plant. Xylem is a vascular tissue involved in the transportation of water and minerals from the root to the leaves of plants. It also provides mechanical support and storage to the plants. Xylem consists of two types of conducting cells, namely tracheids and vessel elements. Both cells are together called as tracheary element.
To identify: The structure shown in micrograph C
Concept introduction: Vascular plants consist of two specialized tissues called as xylem and phloem that act as a conducting tube in plants for the transportation of water and sugar molecules throughout the plant. Xylem is a vascular tissue involved in the transportation of water and minerals from the root to the leaves of plants. It also provides mechanical support and storage to the plants. Xylem consists of two types of conducting cells namely tracheids and vessel elements. Both cells are together called as tracheary element.
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Bundle: Biology: The Unity and Diversity of Life, Loose-leaf Version, 14th + LMS Integrated for MindTap Biology, 2 terms (12 months) Printed Access Card
- While exploring a forest, you come upon a plant that you haven't seen before. You dig it up and take it back to your lab for further inspection. Back at the lab, you observe the characteristic structure of the plant and make some notes. Then, you carefully dissect the stems and leaves and look at the tissue under the microscope. Finally, you are able to determine the type of plant it is. Use the notes below to identify the class to which this plant belongs. Notes on physical characteristics of the specimen: the plant has no leaves or roots, but has hair-like rhizomes which anchors it in the soil the stems are highly branched sporangia are present at the ends of each stem dissection of the stem shows the presence of vascular tissue in the form of a xylem and phloemarrow_forwardLook at As shown. Part (A) shows the lower half of a fusiform initial (actually most fusiform initials would be much taller than this), and part (B) shows the same cell after it has divided and one of the daughter cells is developing into a xylem cell. Did the fusiform initial divide with a periclinal wall or an anticlinal wall as it went from part a to part b? Part (D) shows that the same fusiform initial has now produced a second cell that is developing into a phloem cell. Was that phloem cell produced by a periclinal or an anticlinal division of the fusiform initial? Part (F) shows the fusiform initial dividing and forming a second fusiform initial. Is this division occurring by a periclinal wall or an anticlinal wall?arrow_forward2. a) As part of an experiment you are required to observe the external features of a fern. State what microscope would you use and give reasons why? b) You have been provided with a plant showing the rooting system and the stem with several leaves. Give SIX features that you will look for to determine whether this is a monocotyledonous plant or a dicotyledonous plant. Present your answer in a clear, logical manner. c) In an experiment students were given the following materials and apparatus: - juices from three local fruits; 4% glucose solution; Benedict's solution; test tubes, beakers, syringes and boiling water bath. Describe CLEARLY the procedure that can be used to estimate the amount of glucose present in each juice. Use numbered steps in your answer.arrow_forward
- Identify the pointed cell and its function. How is it different from other plant cell types? How can you describe the cell walls? What plant parts can you find these cells?arrow_forwardSince 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_forwardWhat are some of the functions of the parenchyma cells in the cortex and pith of a stem? Edit View Insert Format Tools Table 14pt Paragraph BI U A 2 T :arrow_forward
- READ THE FOLLOWING INSTRUCTIONS: Bryophytes in which the gametophytes are "leafy" in appearance and the sporophytes grow conspicuously from the tips of the gametophyte plants. STEP 1: Examine the mass of moss plants and then select one or two individual gametophyte plants and note the leaf-like (not true leaves because they lack conducting tissue) structures which are arranged around a central, vertical "stem-like" stalk and root-like rhizoids which anchor the plant and absorb water and nutrients. STEP: The sex organs are in the tips of the plants and must be seen with the microscope. Study a slide of a vertical section through head of a mate plant and note the many antheridia. STEP 3: Examine a slide through a vertical section of a female plant. Note the many upright archegonia each on a tall stalk and each with a swollen base or venter containing an egg and an elongate neck. Note the filamentous paraphyses between the archegonia. STEP 4: Examine a living or preserved…arrow_forwardShow the sequence of secondary growth by drawing the row of cells from the boxed area below and labeling the vascular cambium cell (V), 5 xylem cells from oldest (X1) to youngest (X5), and 3 phloem cells (P1 to P3). Show what happens after growth continues by drawing and labeling a row with twice as many xylem and phloem cells. How does the vascular cambium’s location change? A pear has a hard texture but juicy. State two cells that give the characteristics? State the function of the transitional epithelium found in the mammalian urinogenital system. (i) Identify type of tissue lines the air sacs of the lungs. (ii) Explain how the tissue named in (i) adapted to its function.arrow_forwardHow do we identify reasons why a micrograph of leaf tissue show plant cellsarrow_forward
- Figure 14.26 If a flower lacked a megasporangium, what type of gamete would it not be able to form? If it lacked a microsporangium, what type of gamete would not form?arrow_forwardLook at as shown. Vascular cambium is not present; it was located far above the top of the micrograph, but you can see there are six rows of wood cells. How many fusiform initials were involved in producing the wood visible in this figure? Look at all the cells in any particular row. Were all the cells of that row made by divisions of one fusiform initial or by many different fusiform initials?arrow_forwardlocate the following in each picture ● node● internode● leaf sheath (if possible)● lenticel (if possible)● axillary bud (if possible) please use arrow inarrow_forward
- Biology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781305073951Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage LearningConcepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College