Sporophyte - Study guides, Class notes & Summaries

Part A Angiosperms are most closely related to _____. - gymnosperms Correct: The branching pattern of the phylogenetic tree in the activity indicates that angiosperms are most closely related to gymnosperms. Part A During the Carboniferous period, forests consisting mainly of _____ produced vast quantities of organic matter, which was buried and later became coal. - ferns and other seedless plants Correct: These were the dominant plant types of the time. Part A In contrast to bryophytes...

List four groups of land plants, and able to mark their traits on a phylogeny. - ANSWER 1. nonvascular (mosses) : diverged from green algae 2. seedless vascular (ferns) : adaptive radiations in Devonian & Carboniferous 3. seed plants : recent adaptive radiation, dominate planet! -gymnofers (pine cones) : conifers -angiosperms : flowering plants (DOMINANT) Explain why branching in plants is important. - ANSWER -more reproductive potential, more flowers on a branched tree -more photosynt...

1. In most fungi, karyogamy does not immediately follow plasmogamy, which consequently A) means that sexual reproduction cannot occur. B) decreases the overall size of the organism. C) allows fungi withstand harsh conditions in a dormant state. D) results in heterokaryotic or dikaryotic cells. - Answer-D) results in heterokaryotic or dikaryotic cells. 2. Which of the following best describes the physical relationship of the partners involved in lichens? A) Fungal cells are enclosed within ...

Biology 104: Plant Exam questions with correct answers What are the characteristics of a plant? -Correct Answer-A multicellular, eukaryotic, autotrophic organism with a cell wall (cellulose), performs photosynthesis, store starch, non mobile, alternation of generations, reproductive protection tissue From what organism did plants evolve? -Correct Answer-Charophytes (green algae) What are the adaptations of plants to life on land? -Correct Answer-the need for a constant supply of water (ro...

Part A All seed plants _____. - are heterosporous Correct: All seed plants produce separate male and female spores. Part A An ancient date palm seed germinated and grew into a healthy plant. What was the source of nutrients for the young sporophyte embryo during germination of the date palm seed? - food stored within the seed Correct: A seed consists of an embryo and a food supply, packaged in a protective seed coat derived from the integument(s). Part A Angiosperms are different from ...

1. Which of these are spore-producing structures? A) sporanguim of a moss B) antheridium of a moss or fern C) archegonium of a moss or fern D) gametophyte of a moss - A) sporanguim of a moss 2. Which of the following is true of the life cycle of mosses? A) The haploid generation grows on the sporophyte generation. B) Spores are primarily distributed by water currents. C) Antheridia and archegonia are produced by gametophytes. D) The sporophyte generation is dominant. - C) Antheridia and...

Green plant phylogeny ANSWER: - green algae and land plants share a common ancestor - all green plants are photo autotrophic but not all photo autotrophic plants are green 2 major groups of green algae ANSWER: - chlorophytes: never made it to land - charophytes: sister group to all land pants - ancestral charophytes species gave rise to land plants - streptophytes have charophytes and land plants - land plants have multicellular haploid and diploid stages and diploid embryos(not foun...

"Hairy Flagellum" of Stramenopile - A flagellum with hair-like appendages; unique to the group Stramenopile. "Slug" - An aggregation of slime mold cells to essentially form a multicellular body. Absorption - A mode of nutrition in some Ciliates. Active transport - Energy-requiring process that moves material across a cell membrane against a concentration difference. Agar - Another material that makes up cell walls of Red Algae. Alginate - A material that makes up the cell wall of Brow...

Flowers - specialized structure for sexual reproduction, pollination by animals (insects, mammals, birds) and wind Seed - consists of an embryo and nutrients surrounded by a protective coat. Gametophytes of seed plants - develop within the walls of spores that are retained within tissues of the parent sporophyte The ancestors of seed plants were most likely_____, while seed plants are ________. - homosporous; heterosporous Ovule - consists of a megasporangium, megaspore, and one or more p...

Derived traits of plants that distinguish them from other members of Eukarya - Photosynthesis -spores walled with sporopollenin -Vascular structures How to tell if an organism is a plant or green algae based on characteristics? Plant- Spores walled with sporopollenin - complex vascular structures - Differentiation between the root and shoot system Green algea- can bu unicellular - more mobility underwater Challenges of the terrestrial environment for organisms - desiccation (water...