Week 3, Session 2Chapter 29Supplemental InstructionIowa State UniversityLeader: KelseyCourse: Bio 211 (5)Instructor: Dr. HolscherDate: 9-10-091. What is the dominant stage (sporophyte/gametophyte) in non-vascular plants (bryophytes)?2. What is the dominant stage (sporophyte/gametophyte) in vascular plants? 3. Match the structure to the definition:1. peristome _______2. rhizoid ________3. stomata _______4. sori _______5. lignin ________6. sporophylls 4. _____________ carries water and minerals through tracheids in plants.5. _____________ distributes sugar and amino acids in plants.6. True or false: Homosporous plants produce two types of spores that develop into a bisexual gametophyte. ___________a. If this is false, make it a true statement:7. True or false: All seed plants (and a few seedless plants) are heterosporous. __________a. If this is false, make it a true statement:Supplemental Instruction1060 Hixson-Lied Student Success Center v 294-6624 v www.si.iastate.edua. Anchor in mosses that keeps gametophytes in placeb. Found on ferns, contain sporangia that disperse bisexual sporesc. Found on mosses, releases haploid male and female sporesd. Structural component of xylem that allows the plant to grow talle. Modified leaves that bear sporangia, can be circular or cone-shapedf. Pores that enable gas exchange in some species of nonvascular plantsDiscussion Questions:1. How do bryophtes differ from other plants?2. What does it mean for something to be haploid? Diploid? Are humans haploid or diploid?Do we have both types of cells? 3. In alternation of generations, which stages are haploid and which are diploid? What happens that changes a plant from a haploid stage to a diploid stage? What changes a plant from a diploid stage to a haploid stage? 4. What process does the gametophyte undergo to produce haploid gametes? How does the gametophyte stage change to the sporophyte stage? What process does the sporophyte undergo to produce haploid
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