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In the vascular seedless plants and vascular seed plants, the main vegetative structures (such as the leaves) are:
Question 34 options:
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Diploid cells of the gametophyte. |
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Diploid cells of the sporophyte |
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Haploid cells of the sporophyte. |
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Haploid cells of the gametophyte. |
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- In flowers, the structures that produce male gametophytes are called _______ ;the strcutures that produce female gametophytes are called _______ . a. pollen grains; flowers c. anthers; stigma b. stamen; carpels d. megaspores; microsporesWhich of the following pairs of plant structure has the haploid number ofchromosomes? A. Megaspore mother cell and antipodal cells B. Egg cell and antipodal cells C. Egg cell and endosperms D. Microspore mother cell and antipodal cellsMale gametophytes in the pine tree are produced by which of the following processes? -Gametogenesis -Mitosis -Neither mitosis nor meiosis -Meiosis -Microsporophyte generation
- n the bryophytes, the main vegetative structures (such as the leaves of moss) are: Question 23 options: Haploid cells of the gametophyte. Haploid cells of the sporophyte. Diploid cells of the sporophyte Diploid cells of the gametophyteSelect ALL the structures that are haploid in the plant life cycle. Group of answer choices: 1. gametes 2. sporophyte 3. gametophyte 4. sporesYou are studying a type of plant known as " rockcress" or Arabidopsis sp. You discover a mutant in which the central cell of the female gametophyte cannot be fertilized. What structure will not form in these mutant plants? Synergids Pollen tube Endosperm Egg cell
- What is a gametophyte? How many different types of gametophytes are there in a plant life cycle? What do they look like (as shown)? Do the sporophytes and gametophytes of seed plants ever look like each other?The megaspore in most flowering plants grows into a megagametophyte that has seven cells and eight nuclei. Name and describe the seven cells.PLEASE ANSWER NUMBER 1,2,3, and 4 QUESTIONS: (with brief explanation only) 1. A difference between seedless vascular plants and plants with seeds is that? A. the gametophyte generation is conspicuous in the seedless plants, whereas the sporophyte is dominant in the seeded plants. B. the spore is the agent of dispersal in the first, whereas the seed functions in dispersal in the second. C. the gametophyte is photoautotrophic in seedless plants but dependent on the sporophyte generation in the other group. D. the embryo is unprotected in the seedless plants but retained within the female reproductive structure in the other group. 2. Biologist hypothesize that the first land plants had a low, sprawling growth habitat. Which of the following is part of the logic behind that theory? A. The low sprawling growth gave them greater surface area exposed to light for photosynthesis. B. This was prior to plants’ development of adaptations to defend themselves from predators, so by growing…
- Which of the following is NOT a characteristic of the gametophyte stage of the flowering plant? -The gametophyte is diploid -Male and female gametophytes are separate from one another -The gametophyte is haploid -The gametophyte is dependent on the sporophyte for a specific amount of time -The gametophyte is a gamete producing structureA gymnosperm leaf carries 16 chromosomes. What is the number of chromosomes in its endosperm?The cells of endosperm have 24 chromosomes. What will be the number of chromosomes in the gametes ? (a) 8 (b) 16 (c) 23 (d) 32