Title: 16.3 Variation In Plant Life Cycles - Guest Hollow
Headings: 16.3 Variation in Plant Life Cycles
16.3 Variation in Plant Life Cycles
Lesson Objectives
WORKBOOK ASSIGNMENT:
Vocabulary
Introduction
General Plant Life Cycle
Life Cycle of Nonvascular Plants
Life Cycle of a Moss
Life Cycle of Seedless Vascular Plants
Life Cycle of Gymnosperms
Life Cycle of Angiosperms
Plant Reproduction in Angiosperms
Amoeba Sisters
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Lesson Summary
Lesson Review Questions
Recall
Apply Concepts
Think Critically
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Content: Fertilization of gametes produces a diploid zygote. The zygote grows and develops into a mature sporophyte, and the cycle repeats. This diagram represents the life cycle that generally characterizes plants. One of the two generations of a plant’s life cycle is typically dominant to the other generation. Whether it’s the sporophyte or gametophyte generation, individuals in the dominant generation live longer and grow larger. They are the green, photosynthetic structures that you would recognize as a fern, tree, or other plant (see Figure below). Individuals in the nondominant generation, in contrast, may be very small and rarely seen. They may live in or on the dominant plant. The dominant generation in nonvascular plants is the gametophyte; in vascular plants, it’s the sporophyte.