Archegonia - 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...

Arrange the following structures, which can be found on male pine trees, from the largest structure to the smallest structure (or from most inclusive to least inclusive). a.)pollen cone, sporophyte, microspores, microsporangia, pollen nuclei b.)sporophyte, pollen cone, microsporangia, microspores, pollen nuclei c.)sporophyte, microspores, microsporangia, pollen nuclei, pollen cone d.)pollen cone, microsporangia, microspores, pollen nuclei, sporophyte correct answers b.)sporophyte, pollen c...

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 ...

"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...

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...

Land Plants Complex multicellular organism that range in size from minute to MASSIVE. Adaptations of this type of plant include anatomical, physiological, and reproductive features. Waxy Cuticle Covers aerial portions of a plant, protects against water loss. Resides ON TOP of the epidermis. Stomata Used for gas exchanged, required for photosynthesis. Guard Cells surround this and can open or close it depending on environmental/chemical interactions. Antheridia Gametangia that produce SPER...

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...

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...

Flowers - The reproductive structure in plants Double Fertilization - One sperm unites with an egg, forming a diploid zygote, and the other unites with polar nuclei, forming a triploid endosperm nucleus. Eudicotyledones (Eudicots) - -Two cotyledons -Flowering parts in four of fives or multiples of four or five -Pollen grain with three pores -woody or herbaceous -usually net venation -vascular bundles in a ring -taproot system Alteration of generations - The alteration of two or more di...