Concept explainers
To determine:
The similarities and differences between the spores of ferns and the seeds of higher plants.
Introduction:
Ferns are seedless vascular plants, which are reproduced by the production of several types of spores. They do not make fruits, and live in a dark and moist climate. Ferns are examples of
To determine:
The proportion of fern spores that would be likely to survive long enough for the reproduction.
Introduction:
Ferns belong to the category of seedless vascular plants and are able to undergo the process of reproduction by the production of several types of spores. They are unable to make fruits, and live in dark and moist climate of colder regions. Ferns are examples of pteridophytes.
To determine:
The factors that decide whether a spore will produce a new fern plant.
Introduction:
The members of ferns are reproduced by various types of spores and possess vascular system. They do not make fruits, and live in a dark and moist climate. Ferns are examples of pteridophytes.
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BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
- What would happen if the megaspore itself functioned as an egg and did not go on to produce other nuclei in a female gametophyte?arrow_forwardIn most female gametophytes with eight nuclei, only the egg and the central cell nuclei do not degenerate. What would happen if the megaspore itself functioned as an egg and did not go on to produce other nuclei in a female gametophyte?arrow_forwardThe leafy, green moss plants that are familiar are gametophytes, haploid plants. This is very different from flowering plants and other seed plants. Does a leafy green moss plant grow from a spore or from a fertilized egg? Does the moss plant have both paternal parent and maternal parent?arrow_forward
- Compare the Venn diagram of sexual reproduction and asexual reproduction in plants. Where in the diagram would you add identical to parent? A) A B) B C) C D) D use photo Not Gradedarrow_forwardWhich of the following comparisons between the moss life cycle and fern life cycle are correct? A) Mosses have flagellated sperm that need water to reach the female gamete, while the sperm of ferns are unflagellated and are not dependent on water.B) The sporophyte generation is smaller than the gametophyte generation in mosses, but the sporophyte generation is much larger than the gametophyte generation in ferns.C) The spores are produced in capsules on stalks in mosses but in small structures called sori on the underside of leaves in ferns.D) The gametes are produced in gametangia in mosses but in specialized structures on the underside of leaves in ferns.E) Both kinds of plants depend on wind for dispersal of spores.arrow_forwardIn embryophytes, especially spermatophya, what is the difference between a "sporocyte" (e.g., megasporocyte) and the actual spore (e.g., megaspore)? a) Meiosis: Megasporocyte is still diploid, megaspore haploid b) Mitosis, number of nuclei: Megaspore has eight cell nuclei, megasporocyte only one c) Cytokinesis: Megasporocyte has only one cell, Megaspore can have several (as endosporic gametophyte). d) None: the two terms are synonymous. e) Meiosis: Megaspore is still diploid, megasporocyte haploidarrow_forward
- Draw a figure of a typical sporulation cycle in Bacillus species from the active vegetative cell to release and germination.arrow_forwardCompare the Venn diagram of sexual reproduction and asexual reproduction in plants. Where in the diagram would you add identical to parent? A) A B) B C) C D) Darrow_forwardAre fern spores haploid or diploid? Are the spores proudced by meiosis or mitosis? Where are the spores produced?arrow_forward
- The following questions refer to the generalized life cycle for land plants shown in the figure below. Each number within a circle or square represents a specific plant or plant part, and each number over an arrow represents either meiosis, mitosis, or fertilization. 6. (5) 2n 8. ndlor, 12 10 8. In the figure above, which number represents the mature gametophyte? O 1 O 7 O 3 O 1 MacBook Pro G Search or type URL %23 24 * 3 4 W E Yarrow_forwardPlants and animals originated in water environments and, much later, plants invaded the land and later still, animals invaded the land. a) With respect to the four groups of plants (Bryophytes, seedless vascular plants, Gymnosperms, and Angiosperms), give the basic method of fertilization. That is, how do the sperm reach the eggs? b) What is the significance of the fertilization methods to the invasion of the land by the Gymnosperms and Angiosperms?arrow_forwardWhen and where does reduction division take place in the live cycle of a livewort, a moss,a fern?arrow_forward
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