Biology (MindTap Course List)
10th Edition
ISBN: 9781285423586
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 34, Problem 4TYU
Summary Introduction
Introduction: The leaf consists of various tissues. A layer of epidermis is present in the upper and lower surfaces of a leaf blade. The upper surface of the leaf blade covers the upper surface of a leaf and the lower surface of the blade covers the lower surface of the leaf. Leaf epidermal cells lack chloroplast and are relatively transparent.
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Exercise II Bryophyta: The Mosses
Examine with the dissecting microscope the mosses that are available. The "leafy" plants
are the gametophytes and any elongated structures growing above them are the
sporophytes. (See text Figure 16-27, page 385.)
15. Label the following in Figure 5 below: spores, zygote, protonema, gametophyte,
meiosis, female, male, sporophyte, archegonia, sperm, sporangium.
Capsule
(n)
9
"Bud"
Mature
(2n)
Female
(n)
1n
2n
Young
sporophyte
(2n)
gametophyte
(n)
82
Antheridia
gametophyte
(n)
Embryo (2n)
water
E88
Female
-gametophyte
(n)
sperm
Fertilization
(2n)
Figure 5. Moss Life Cycle (drawn by Stephanie Preising, SCSU '20)
Obtain a gametophyte and observe its symmetry, its leaf like structures, its axis (pseudo-
stem), and is rhizoids. Some species of mosses are unisexual; others are bisexual.
The moss gametophyte originates as budlike structures that develop from a protonema
(plural: protonemata), a system of branching filaments derived from a germinating spore.
Chapter 34 Solutions
Biology (MindTap Course List)
Ch. 34.1 - Prob. 1LOCh. 34.1 - Prob. 2LOCh. 34.1 - Prob. 3LOCh. 34.1 - Prob. 4LOCh. 34.1 - How are leaves adapted to conserve water?Ch. 34.1 - Prob. 2CCh. 34.1 - What are the two types of vascular tissue in a...Ch. 34.1 - How is the leaf organized to deliver the raw...Ch. 34.2 - Prob. 5LOCh. 34.2 - Prob. 6LO
Ch. 34.2 - How does blue light trigger stomatal opening?Ch. 34.2 - Prob. 2CCh. 34.3 - Discuss transpiration and its effects on plants.Ch. 34.3 - Prob. 8LOCh. 34.3 - Prob. 1CCh. 34.3 - How do environmental factors (sunlight,...Ch. 34.3 - Prob. 3CCh. 34.3 - Prob. 4CCh. 34.4 - Define leaf abscission, explain why it occurs, and...Ch. 34.4 - Why do many woody plants living in temperate zones...Ch. 34.4 - Prob. 2CCh. 34.4 - Prob. 3CCh. 34.5 - Prob. 10LOCh. 34.5 - Prob. 1CCh. 34.5 - Prob. 2CCh. 34.5 - What are some of the specialized features of the...Ch. 34 - Prob. 1TYUCh. 34 - Prob. 2TYUCh. 34 - Prob. 3TYUCh. 34 - Prob. 4TYUCh. 34 - Which of the following is not an adaptation of...Ch. 34 - Prob. 6TYUCh. 34 - At sunrise, the accumulation in the guard cells of...Ch. 34 - Prob. 8TYUCh. 34 - Prob. 9TYUCh. 34 - Modified leaves that enable a stem to climb are...Ch. 34 - There is a trade-off between photosynthesis and...Ch. 34 - Suppose that you are asked to observe a micrograph...Ch. 34 - Prob. 13TYUCh. 34 - Prob. 14TYUCh. 34 - What might be some of the advantages of a plant...Ch. 34 - Prob. 16TYUCh. 34 - Prob. 17TYU
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- Exercise II Bryophyta: The Mosses de Examine with the dissecting microscope the mosses that are available. The "leafy" plants are the gametophytes and any elongated structures growing above them are the sporophytes. (See text Figure 16-27, page 385.) 15. Label the following in Figure 5 below: spores, zygote, protonema, gametophyte, meiosis, female, male, sporophyte, archegonia, sperm, sporangium. € Capsule (n) Mature (2n) Female (n) 1n 2n Young sporophyte (2n) gametophyte (n) Antheridia gametophyte (n) 82 Embryo (2n) water Egg Female, gametophyte (n) sperm Fertilization (2n) Figure 5. Moss Life Cycle (drawn by Stephanie Preising, SCSU '20) Obtain a gametophyte and observe its symmetry, its leaf like structures, its axis (pseudo- stem), and is rhizoids. Some species of mosses are unisexual; others are bisexual. The moss gametophyte originates as budlike structures that develop from a protonema (plural: protonemata), a system of branching filaments derived from a germinating spore.arrow_forwardThe cell walls of parenchyma cells (a) contain large quantities of pectin in the thickened corners (b) are rich in lignin but do not contain hemicelluloses and pectin (c) are predominantly cellulose, although they also contain hemicelluloses and pectin (d) contain cellulose, hemicelluloses, and ligninin approximately equal amounts (e) contain hemicelluloses, pectin, and lignin but no cellulosearrow_forwardTest Your Understanding Know and Comprehend 1. Seed plants lack which of the following structure(s)? (a) ovules surrounded by integuments (b) microspores and megaspores (c) vascular tissues (d) a large, nutritionally independent sporophyte (e) a large, nutritionally independent gametophytearrow_forward
- Show all working explaining detailly each step Solution should be typewritten with a computer keyboard!arrow_forwardStomata (a) help prevent desiccation of plant tissues (b) transport water and minerals through plant tissues (c) allow gas exchange for photosynthesis (d) strengthen cell walls (e) produce male gametesarrow_forward3. Ground Tissue *comprises the rest of the plant that is not dermal or vascular *used for photosynthesis, storage, and support *the specific type of ground tissue depends on its location Root & Stem: (internal to vascular tissue) (external to vascular tissue) Leaves: mesophyll (elongated, columnar) mesophyll (irregular shaped, spaced apart)arrow_forward
- The waxy layer that covers aerial parts of plants is the (a) cuticle (b) archegonium (c) protonema (d) stoma (e) thallusarrow_forward2. Secondary growth in stems involves two meristems. Identify and describe these two meristems, explain what tissues they are responsible for producing (including their functions), and explain the direction of cell division in which those tissues are produced in relation to the epidermis. For the last part of this question referring to the direction of cell division, make sure to address why cell division is occurring in two different planes. Also, as part of your answer, name and explain the functions of the tissues from the center of the stem to the dermal layer, in order, for a stem conducting secondary growth.arrow_forwardAre geraniums herbs or woody plants? Do they ever form bark (as shown)?arrow_forward
- 1. Estimate the maximum turgor pressures (Ψp) inside the cells of leaves and flowers. 2. Which structure (leaves or flowers) have stiffer, more rigid cell walls? What part(s) of the graphs tell you this? 3. At about what relative cell volume (equal to relative water content) does incipient plasmolysis occur for each structure? 4. Which structure (leaves or flowers) has more solutes inside the cells? 5. Which structure (leaves or flowers) do you expect to undergo more shrinking and swelling in volume with changes in water content? 6. Imagine you wanted to display a C. speciosa shoot in a vase in your house. You cut a flowering shoot (a shoot with both leaves and flowers on it) from a tree growing outside. You then transport the shoot into your house. As you carry it, the leaves and flowers are evaporating water. By the time you place the shoot in the vase of water, the relative water content (equivalent to relative cell volume) of the leaves and flowers has declined to…arrow_forwardIn angiospermic plant before formation of microspore sporogenous tissue undergo cell division (a) Name the type of cell division. (b) What would be the ploidy of the cells of tetrad?arrow_forward. Compare the leaf structure of Potamogeton to Ligustrum. Look for stomata. Where are they located? On the upper or lower leaf surface? Does Potamogeton have sunken stomata or leaf hairs? Look at the area beneath the upper epidermis and compare it to the Ligustrum and Nerium leaves. How does it differ? What value does this have for the plant? How does the appearance of each tissue layer in Potamogeton differ from Ligustrum? Compare the upper epidermis to the lower epidermis. Compare the amount of cuticle. Compare the organization of the mesophyll cells to those in Ligustrum.arrow_forward
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