Sporopollenin - Study guides, Class notes & Summaries

GCU BIO-182 Exam 2 With 100% Correct Answers 2024 Green Algae - answer____________ called charophytes are the closest relatives of land plants. Land plants share four key traits with only charophytes - answer• Rings of cellulose- synthesizing complexes • Peroxisome enzymes • Structure of flagellated sperm • Formation of a phragmoplast Sporopollenin - answerIn charophytes a layer of a durable polymer called _____________ prevents exposed zygotes from drying out Sporopollenin - ...

Importance of plants Correct Answer-food, natural products, ecosystem services (oxygen, ozone, coal), culture Preadaptations of Charophytes Correct Answer-fresh water spores covered in sporopollenin, life cycle allows dispersal by wind (spores) Gametophyte Correct Answer-haploid (n), makes gametes by mitosis Sporophyte Correct Answer-diploid (2n), makes spores by meiosis Alternation of Generations Correct Answer-Gametophytes go through mitosis to create gametes, which form zygote, zy...

Which of the following is most important in making the typical seed more resistant to adverse conditions than the typical spore? A) different type of sporopollenin B) an internal reservoir of liquid water C) integument(s) D) ability to be dispersed E) waxy cuticle C) integument(s) In addition to seeds, which of the following characteristics are unique to the seed-producing plants? A) Sporopollenin B) lignin present in cell walls C) Pollen D) use of air currents as a dispersal agent E) megaphyll...

GCU BIO-182 Exam 2 With 100% Correct Answers 2024 Green Algae - answer____________ called charophytes are the closest relatives of land plants. Land plants share four key traits with only charophytes - answer• Rings of cellulose- synthesizing complexes • Peroxisome enzymes • Structure of flagellated sperm • Formation of a phragmoplast Sporopollenin - answerIn charophytes a layer of a durable polymer called _____________ prevents exposed zygotes from drying out Sporopollenin - ...

what is the precise composition of sporopollenin? - Its precise composition is unknown but it contains phenolic substances, fatty acids, and phenylpropanoids There are four key traits that land plants share only with charophyceans. what are they? - 1. structure of flagellated sperm, 2. rose shaped complexes for cellulose synthesis, 3. peroxisome enzymes (photorespiration), 4. formation of a phragmoplast what is the mesophyll? - The ground tissue of a leaf is sandwiched between the upper a...

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...

charophytes - (aquatic) green algae land plants evolved from 3 key traits land plants share with charophytes - 1. rings of cellulose-synthesizing proteins embedded in plasma membrane 2. formation of a phragmoplast (helps form cell wall) 3. structure of flagellated sperm (not all will have this) adaptations enabling plants' move to land: why? - 1. CO2 2. sunlight 3. soil- nutrients 4. fewer predators/pathogens (never been seen before) adaptations enabling plants' move to land: pro...

Plant Exam Questions With Solutions In seed plants, which of the following is part of a pollen grain and has a function most like that of the seed coat? a) stigma b) sporopollenin

charophytes - (aquatic) green algae land plants evolved from 3 key traits land plants share with charophytes - 1. rings of cellulose-synthesizing proteins embedded in plasma membrane 2. formation of a phragmoplast (helps form cell wall) 3. structure of flagellated sperm (not all will have this) adaptations enabling plants' move to land: why? - 1. CO2 2. sunlight 3. soil- nutrients 4. fewer predators/pathogens (never been seen before) adaptations enabling plants' move to land: problems...

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...