Please help Please answer all the questions in order thank you. I will give thumps up. mature gametophyteplant with rhizoidsand sex organs (n)haploiddiploidone of many archegoniawith eggs (n)young gametophyteplant with rhizoids (n)germinationHaploidGametophyteGenerationspores (n)one of many antheridiawith sperm (n)meiosisfertilizationDiploidSporophyteGenerationsporangium onunderside of frond(а).young sporophyteplant (2n) growingout of gametophyteplantmature sporophyteplant (2n)(a) frond(b) rhizome(c).(c) гoots(b) Mature sporophytesLook up the terms frond, rhizome, and roots, and define them.These three structures, together, make up theThe underside of the frond contains the sporangium, which is the receptacle wherewill be carried out in order to produce spores, which will be haploid and willgo on to continue the life cycle of the fern.

* Fronds means they are the leaves of ferns composed of a leafy blade and petiole. *Rhizomes are…

Mature sporophytes Look up the terms frond, rhizome, and roots, and define them. These three structures, together, make up the The underside of the frond contains the sporangium, which is the receptacle where will be carried out in order to produce spores, which will be haploid and will go on to continue the life cycle of the fern,

Mature sporophytes Look up the terms frond, rhizome, and roots, and define them. These three structures, together, make up the The underside of the frond contains the sporangium, which is the receptacle where will be carried out in order to produce spores, which will be haploid and will go on to continue the life cycle of the fern,

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter14: Plants And Fungi

Section: Chapter Questions

Problem 1CT

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e th aci st SJ I the size, shape, and arrangement of the leaves, which are microphylls, small leaves with only one vein. Examine the roots and their relationship to the stem. In Selaginella, the roots grow downward from a leaf-bearing stem. The sporangia of the Lycopodiophyta are borne on leaves essentially similar to the sterile leaves of the plant. The sporangium bearing leaf is called a sporophyll. In Selaginella and Lycopodium, the sporophylls occur in compact aggregates called cones, or strobili. 1. Label the microphylls and strobili in the Figure 1 below. Figure 1. Lycopodium sp. Examine the prepared slide of a mature Lycopodium strobilus. (See text Figure 17-16, pages 406 and 407.) Note that Lycopodium, like most species in the Lycopodiaceae, is homosporous and only produces one type of spore. iw ow del ain 2. Label the spores in Figure 2 below. qXI 92 Laibaquari Figure 2. Lycopodium strobilus l.s. 3. Given that Lycopodium is homosporous, would you expect its gametophytes to be…
The gametophyte of Pteridophytes is inconspicuous in comparison to the mosses. They are also commonly monecious (single "house", or thallus for male and female gamete production). The photo below shows a whole mount (w.m.) of a fern gametophyte at 40x. Make a sketch of the specimen and label the following structures: archegonium, antheridium, mature gametophyte (a.k.a. prothallus), rhizoids 90
Examine the winter twig in the picture below of a Horse Chestnut tree, Aesculus hippocastanum. w.m. Draw a sketch of this twig and label all the following structures: terminal bud, lateral bud, terminal bud scale scars (show several sets of terminal bud scars that are visible on the main stem), leaf scars, vascular bundle scars AMooReok Dro
The male gametophyte of the moss looks identical to the female from the naked cye, but the photo below s. at 40x and thenat 100 x) shows that the tip contains the structures where make gametes are produced. Make a sketch of the slide at 100x and label the following structures: antheridial head, antheridium. sperms
Explain the life cycle of a fern. Begin with the dominant portion of their life cycle and work your way through the rest including specific names of structures, types of cell division used, and nuclear conditions. Along with your explanation (paragraphs, bulleted points, etc.), I would like for you to discuss in a few sentences how this life cycle is more advanced than a typical moss’s life cycle and, in a few sentences, how it is not quite as advanced as a typical pine’s life cycle.
One of the genera of Lycophytes are the Selaginellaceae. Like other Lycophytes, Selaginellids bear their spores in a strobilus but they have an unusual strobilus. Which answer below best describes this difference? O their spores are always diploid O they are gaemtophyte dominant O their spores are heterosporous O their strobilus is dependnent upon the female gametophyte like mosses APR 25 étv MacBook Pro G Search or type URL @ #3 % %24
9. Label the sporangia, indusium, leaf, and spores in Figure 4 below. Figure 4. Cyrtomium leaf c.s., sorus l.s. 10. Explain the mechanism of spore dispersal in ferns with sori 11. In what way is this mechanical method of spore dispersal similar to that in the bryophytes?. Photo by Carolyn Alling Most ferns produce only one kind of spore and are therefore homosporous. Upon germination, the spore, the first cell of the gametophytic generation, gives rise to a heart shaped, bisexual gametophyte, called a prothallus. 12. What type of nuclear division produces the many celled gametophyte from a spore? Examine the fern gametophytes under the dissecting scope. Note the many rhizoids emerging from the lower, or ventral, surface. Among the rhizoids you will find antheridia, some of which may contain sperm cells. Nearer the notch of the "heart" you will find the archegonia. In order to visualize their shape in three dimensions, you will have to focus up and down on the archegonia. Examine the…
sporangiophores are interpreted as modified branches and consist of a stalk and a shield- like portion. Inside of the sporangium, look for the spores each with a pair of elongated appendages called elaters. These elaters respond to changes in the humidity to aid in spore dispersal. 18. Label the spores on Figure 6 below. Figure 6. Equisetum strobilius l.s. Equisetum is homosporous and produces green, free-living, bisexual gametophytes. (See text Figure 17-40 and 17-41, page 425-427.) Photo by Carolyn Alling Fill in Table 1 from the Bryophyte lab with information about Lycophytes, Ferns, and Horsetails. 97
The photo below is a longitudinal section (I.s.) of the strobilus of Selaginella at 40x. How does this photo illustrate the importance of the previous question?
The male gametophyte of the moss looks identical to the female from the naked eye, but the photo below (I.s. at 4x and then at 40 x) shows that the tip contains the structures where male gametes are produced.
Rhizomes are involved in the asexual reproduction of ferns. How could this happen?
Byrophytes are usually found in areas that are very wet or damp at least part of the year. Which of the following statements describes characteristics of byrophytes that make them dependent on water? State all that numbers that apply. 1. They have a dominant gametophyte phase. 2. They have swimming sperm that need water so they can swim to fertilize the eggs of other nearby plants. 3. They do not have lignin-stiffened vascular tissue or roots to effectively distribute water throughout the plant.