Homework Answers
27Q Ans: PTEROPHYTES is the correct answer.
Sporophylls are seen in PTEROPHYTES (psilotopsida)
- Sporophyll is a leaf that bears sporangia(spore producing structures).
- Examples are FERNS which contain sporophyll as normal foliate leaves.
- PTEROPHYTES are the seedless vascular plants that has sporophylls which helps in dispersing spores.
- They donot have fruits or seeds. Their mode of reproduction is hidden.
- PTEROPHYTES are the first true land plants.
PTEROPHYTES has 4classes namely:
- Psilotopsida
- Lyfopsida
- Sphenopsida
- Pteridopsida
Q)Ans : SPOROPOLLENIN is the correct answer
- The spores of the seedless land plants and pollens of seed plants are surrounded by a thick wall which contains a tight polymer known as SPOROPOLLENIN.
- sporopollenin was the major component of the outer(exine) walls of the spores.
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Question 27 Sporophylls can be found in which of the following? O pterophytes (psilotopsida) Oliverworts O...
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Which of the following are not a monophyletic group? Other options include angiosperms bryophytes ferns/horsetails and...
Which of the following are not a monophyletic group?
Other options include
angiosperms
bryophytes
ferns/horsetails and bryophytes
ferns/horsetails
gymnosperms
Please select all of them
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Question 32 2 pts Which of the following is true of seedless vascular plants? They produce...
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Question 18 Which of the following statements is true of archegonia? They may temporarily contain sporophyte...
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Question 49 Which of the following is true concerning flowering plants? The gametophyte generation is what...
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Question 1 1 pts 1) Which of the following is not functionally important in the cells of the gametophytes of both angiosperms and gymnosperms? A) haploid nuclei B) mitochondria C) cell walls D) plastids ОА OB - OC Question 2 1 pts 2) In addition to seeds, which of the following characteristics is unique to the seed- producing plants? A) sporopollenin B) alternation of generations C) pollen D) megaphylls OD Question 3 1 pts 3) The closest relatives of the...
25. Which of the following is found in the rigid cell walls of a tracheid cell? a. cellulose b. lignin d. both a and b c. starch e. both b and c 26. Which of the following is the microgametophyte of bryophytes? a. pollen b. thallus d. sorus c. embryo sac e. none of the above occurs due to the action of apical meristems. a. Primary growth b. Gamete production d. Spore production c. Secondary growth e. Tertiary growth 27.
Which of the following are not a monophyletic group?
Other options include
angiosperms
bryophytes
ferns/horsetails and bryophytes
ferns/horsetails
gymnosperms
Please select all of them
Sister group of green algae Liverworts Mosses Hornworts Lycophytes Land plants Ferns and horsetails Green algae Bryophytes Gymnosperms Vascular plants Angiosperms Dirbour How LoneWres Sound MENNO angiosperms o ferns O gymnosperms olycophytes
Question 32 2 pts Which of the following is true of seedless vascular plants? They produce many spores, which are really the same as seeds. Sphagnum is an economically and ecologically important example, The gametophyte is the dominant generation Whole forests were dominated by large, seedless vascular plants during the Carboniferous period. O Extant seedless vascular plants are larger than the extinct varieties. If humans had been present to build log structures during the Carboniferous period (they weren't), which plant...
Plantae: 1. Which of the following correctly describes an evolutionary trend that occurred as land plants evolved? 2. Becoming seedless b. Producing one type of spole Producing nonmotile wametes d. Haploid generation becoming dominant 2. Which of the following occurs in the Ilie cycle of both masses and anglosperms? a. The sporophyte is the dominant generation b. The gametophyce is the dominant gcneration c Spores develop into sporophytes d. The sporophyte products sporcs 3. The evolution of which of the...
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Question 49 Which of the following is true concerning flowering plants? The gametophyte generation is what we see when looking at a large plant. The sporophyte generation is not photosynthetic. The flower includes sporophyte tissue. The gametophyte generation is dominant. The sporophyte generation consists of relatively few cells within the flower. In living conifers, microscopic male gametophytes should be found inside O ovulate cones. O an archegonium. ovaries. O pollén cones. O sporophylls.
D Question 6 1 pts Which one of the following does not contain glucose as its monomeric unit? Chitin starch cellulose O glycogen OOOO
Question 38 2 pts In addition to seeds, which of the following characteristics are unique to the seed-producing plants? O vascular tissue use of air currents as a dispersal agent O sporopollenin megaphylls O pollen How have fruits contributed to the success of angiosperms? by attracting insects to the pollen inside O by nourishing the plants that make them by facilitating dispersal of seeds by producing triploid cells via double fertilization by producing sperm and eggs inside a protective coat
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