Miller & Levine Chapter 26 Review Answer Key

Miller & Levine Chapter 21 Review Answer KeyMultiple Choice1. a2. b3. d4. a5. c6. c7. b8. aTrue or False1. F bryophytes2. F gametophytes3. T4. F fronds5. T6. T7. F few8. F eggsWord RelationshipsA1. structures involved with spore production; sperm is a gamete2. parts of the vascular system in plants; cuticle is a water-proof coating3. haploid cells; zygote is a diploid cell. Alternatively, structures involved with sexualreproduction; spore is a cell that develops into a gametophyte4. haploid structures or terms associated with gametophyte generation; sporophyte is thediploid, spore-producing stage in a plant life cycle5. parts of a fern; rhizoid is a rootlike structure in a bryophyteB6. antheridium7. sporophyte8. sporesConcept Mastery1. Standing water is necessary for sperm to swim in, to fertilize the eggs.2. The moss sporophyte is not very obvious. It resembles a small pepper shaker at the end of athink stalk. It grow attached to the moss gametophyte plant.3. After the spore begins to grow, it produces a small heart-shaped plant called the prothallium,which represents the fern gametophyte generation. Archegonia and antheridia are producedon the prothallium. Sperm produced in the antheridia swim to an archegonium, where they

fertilize the eggs. When the fertilized egg begins to grow, it develops into a sporophyteplant.4. Mosses and ferns are both grown as houseplants and garden plants. Sphagnum moss isadded to soil to improve the soil’s quality. The fuel peat was originally moss. Some fernsare edible.5. Ferns have vascular tissues that conduct water and other materials. Ferns have a protectivelayer, the cuticle, that covers their leaves and prevents water loss.6. Eggs and sperm are produced in structures at the tips of a gametophyte moss plant. Asperm swims to and fertilizes an egg. The fertilized egg begins to grow, producing asporophyte plant, which grows attached to the gametophyte plants. Spores are produced bythe sporophyte plants in a capsule. When the spores ripen, they are shed. If they fall to asuitable place on moist ground, the spores begin to grow, producing the generation ofgametophyte plants.