Chapter 29 Flashcards
What evidence do paleobotanists look for that indicates the movement of plants from water to land?
A) waxy cuticle to decrease evaporation from leaves
B) loss of structures that produce spores
C) sporopollenin to inhibit evaporation from leaves
D) remnants of chloroplasts from photosynthesizing cells
A) waxy cuticle to decrease evaporation from leaves
Which of the following statements is correct regarding stomata?
A) They occur in all plants and define them as a monophyletic group.
B) They open to allow gas exchange and close to decrease water loss.
C) They occur in all plants and are the same as pores.
D) They open to increase both water absorption and gas exchange
B) They open to allow gas exchange and close to decrease water loss.
Which of the following is a common feature among liverworts, hornworts, and mosses?
A) They are all wind pollinated.
B) They are heterosporous.
C) They are pollinated by animals.
D) They require standing water for reproduction.
D) They require standing water for reproduction.
Which of the following is a similarity between bryophytes and seedless vascular plants?
A) Plants in both groups have vascular tissue.
B) In both groups, sperm swim from antheridia to archegonia.
C) The dominant generation in both groups is the sporophyte.
D) Plants in both groups have true roots, stems, and leaves.
B) In both groups, sperm swim from antheridia to archegonia.
Which of the following structures is present in a bryophyte at some point in their life cycles?
A) microphylls
B) true roots
C) true leaves
D) sporangia
D) sporangia
Which of the following statements is correct regarding the structure of a fern?
A) the sporophyte generation is smaller in size than the gametophyte generation
B) sporangia are found on the gametophyte
C) ferns contain no vascular tissue
D) sporangia are found on the sporophylls
D) sporangia are found on the sporophylls
A biology student hiking in a forest discovers a 15-centimeter-tall plant that bears microphylls and a strobili at its tallest point. When disturbed, the cone emits a dense cloud of brownish dust. A pocket magnifying glass reveals the dust to be composed of tiny spheres with a high oil content. Which of the following chemicals are most likely to be detected in substantial amounts upon chemical analysis of these small spheres?
A) sporopollenins
B) phenolics
C) waxes
D) terpenes
A) sporopollenins
A sample of mosses and ferns is comprised of which of the following?
A) both sporophyte and gametophyte generations
B) only vascular plants
C) both nonvascular and seed-bearing plants
D) both seedless and seed-bearing plants
A) both sporophyte and gametophyte generations
- Microphylls are found in which plant group?
A) lycophytes
B) liverworts
C) ferns
D) hornworts
A) lycophytes
