Exam 6 Principles of Biology (Biol 198) Robbie Bear KSU Exam Questions With 100% Correct Answers

Exam 6 Principles of Biology (Biol 198) Robbie Bear KSU Exam Questions With 100% Correct Answers Which of the following characteristics is shared by all land plants? (QZ) - answerThe alternation of generations __________ are terrestrial, photosynthetic organisms but are NOT related to the four land plant groups because they represent an obligate mutualism between a fungus and a photosynthetic organism. (QZ) - answerLichens Which land plant group has a dominant independent haploid stage upon which the diploid stage is dependent? (QZ) - answerBryophytes Which of the following was NOT a significant challenge driving adaptation of the earliest land plants compared to the their aquatic algal ancestors? (QZ) - answerpresence of insects and other terrestrial herbivores Bulbs, Rhizomes, Stolons, Cutting and Grafting are all examples of _______, which produces new genetically identical individuals. (QZ) - answerasexual reproduction In lichen, what does the fungi provide? - answerFungi provide minerals and H₂O In lichen, what does the photosynthetic organism (algae) provide? - answerThe algae provides sugar from photosynthesis. Why are lichens important in an ecosystem? - answerThey are important for soil development. How are lichens formed? - answerLichens are formed between a fungus and a photosynthetic organism. Most algae are [photoautotrophs/heterotrophs]. - answerphotoautotrophs All algae are eukaryotes belonging to the Kingdom ______. - answerProtista Where do most species of red and green algae live? - answerIn the water Why are algae important to humans? - answerThey produce lots of oxygen. Know the life cycle for Chara (type of green algae). - answerOn page 329 of studio manual and chapter 21 in the textbook. Plants and green algae are thought to have evolved from a common ancestor. What biochemical and structural evidence supports this hypothesis? - answerBoth have cell walls that are made of cellulose. They both have chloroplasts that contain chlorophyll a and b. What are 2 similar traits between the life cycle of Chara and plants? - answer1. They both produce spores. 2. Both have haploid and diploid stages. What are the main challenges that plants needed to overcome in order to live on land? - answerResist drying Resist gravity Dry fertilization (pollen, how to move gametes without water) Protect offspring on dry land (seeds) What were 3 features of terrestrial environment that made it advantageous for plants to invade land? - answer1. Abundant sunlight 2. CO₂ is more readily available and diffuses faster in air. 3. At first, no predators on land. What are the 4 adaptations that have evolved in plants that have allowed them to succeed in a terrestrial environment? - answer1. Alternation of generations 2. Sporangium where spores are formed 3. Gametangium that produces haploid cells 4. Apical merristem tissue in roots and shoots Memorize the life cycle of bryophytes. - answerOn page 331 of lab manual and chapter 21 of the textbook. The first group of plants to evolve to live on land. - answerBryophytes The first group of plants to evolve to live on land are the Bryophytes. When did this occur? - answerAbout 450 million years ago. Is the main dispersal stage (the spore) of Bryophytes haploid or diploid? - answerHaploid What is the dominant stage in Bryophytes? I