Land air and waterThe answer is all of the above. The source of the necessary elements of life is.
Biol 201 Final Flashcards Quizlet
Which of the following is NOT a distinguishing characteristic of leptosporangiate ferns.
. It is the dominant form in bryophytes. Pinaceae Pinus has well developed gametophyte in which sperm cells are fertilised with egg cell within the ovule. Multiple Choice Questions From Chapters 7-12.
The female gametophyte in angiosperms consists of haploid cells in which a few archegonia develop. In bryophytes Funaria and Marchantia fertilisation is dependent on water for the transfer of sperm to the egg. The gametophye in non-vascular plants is the green moss-like vegetation at the base of the plant.
Hence pinus is the correct option. Which of the following has exosporal gametophyte development. A stamen consists of a filament and an anther in which microspores are produced which give rise to pollen grains.
Which of the following is the nutritive tissue food supply for the embryo in a pine seed. The inner and outer layers consist of lamellae and poorly segregated components respectively. The first cell in a sporophyte generation is the diploid zygote while the first cell in the.
Egg and sperm are produced. The inner layer does not thicken during exospore development and a dense basal layer is formed by the lamellae. Egg and sperm are produced.
In contrast the outer layer increases significantly in thickness due to self-assembly Hemsley et al. Their gametes are either male or female. 1 Some cells of the diploid sporophyte undergo meiosis to produces haploid spores.
The non-reproductive cells of the female gametophyte. One of the alkaloids that occur naturally in opium. They are the result of sexual reproduction.
4 Sperm and egg combine in fertilization to produce a diploid zygote. Life cycle he notes the following characteristics. A modified leaf or leaf-like organ that bears microsporangia.
Rank the following cells from greatest to least in terms of the likelihood of producing this pigment. Both sexual and asexual reproduction here. Although moss and hornwort sporophytes can photosynthesize they require additional photosynthate from the gametophyte to sustain growth and spore development and depend on it for the supply of water mineral nutrients and nitrogen.
Flagellated sperm xylem with tracheids separate gametophyte and sporophyte generations with the sporophyte dominant and no seeds. They are a stage in the life cycle of plants. Gametophyte is phase of life cycle in which the gametes ie.
The inner layer does not thicken during exospore development and a dense basal layer is formed by the lamellae. The pollen wall is a specialized extracellular cell wall matrix that surrounds male gametophytes and plays an essential role in plant reproduction. A Median longitudinal section of a mature foot embedded in the gametophyte showing placenta Pl palisade-like layer parenchyma region Pr and portion of the basal meristem B.
During the final stages of. A gymnosperm seed is composed of tissue belonging to. Cells in the interior of a subterranean root.
An organic nutrient essential to an organisms metabolism that cannot be synthesized itself is termed aan. The gametophyte are fetilized outside the body. In liverworts mosses and hornworts the sporophyte is less well developed than the gametophyte and is largely dependent on it.
3 One or more cells of the gametophyte undergo mitosis to produce haploid sperm or egg. The loss of water through____ of water from leaves draws water up. Mammals are adapted to live in the following environments.
Which of the following is NOT true of gametophytes. In contrast the outer layer increases significantly in thickness due to self-assembly Hemsley et al. The gametophyte structure of ferns is a heart-shaped plant called a prothallium.
First the gametophyte produces haploid gametes by mitosis. In seedless vascular plants such as ferns the gametophyte and sporophyte generations are both capable of photosynthesis and are independent. The tissue between the upper and lower epidermis of a leaf is called _____.
Alternation between the gametophyte and sporophyte stages found in all land plants. Next one of the gametes fuses with a gamete from another plant resulting in fertilization. A mosses B ferns C charophytes stoneworts D flowering plants E gymnosperms.
While considering gametophyte versus sporophyte generations there are some stark points such as sporophyte is a diploid phase whereas gametophyte is a haploid generation. A fruit of an embryo nutritive material and a protective coat. They are haploid plants.
A an inorganic environmental reservoir b the sun. For plants to function normally 2 kinds of internal transport are essential. Suppose that the cells of seed plants like the skin cells of humans produce a pigment upon increased exposure to UV radiation.
Sporophyte stage is asexual while gametophyte stage is sexual. Biology questions and answers. The largest most species of gymnosperms.
Uncovering the mechanisms that control the. 2 Spores undergo mitosis to produce a multicellular haploid gametophyte. The zygote develops into a multicellular diploid sporophyte.
In the life cycle of plants with alternating generations the gamete-producing and usually haploid phase producing the zygote from which the sporophyte arises. A worker who does not pay for the meals provided by an employer is receiving. Anthoceros is an example of a.
Gametophyte is phase of life cycle in which the gametes ie. This plant is probably most closely related to _____. Ameiosis bspore cmature gametophyte dantheridium e.
The inner and outer layers consist of lamellae and poorly segregated components respectively. B micronutrient c growth factor d essential nutrient 2. The gametophyte is much larger than the sporophyte in all of the following except A.
In bryophytes Funaria and Marchantia fertilisation is dependent on water for the transfer of sperm to the egg. Therefore they have independent free-living gametophyteIn this respect Pteridophyte are similar to bryophytes ie they still have. One of them involves water and minerals and the other involves_____.
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