Which division produced these perithecia? A perithecium is a specific type of.

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1 BOT 125 example lab exam questions pre-1999 Transcribed by Melissa Tulig Are the zoospores sexual or asexual? Zygomycota Rhizopus Are the hyphae haploid, dikaryotic, or diploid? Zygomycota zygospore What is the ploidy level of the nuclei inside this zygospore? What does the zygospore give rise to? Zygomycota asexual sporangia What is the ploidy level of the asexual spores? Are the filaments septate or aseptate? (not able to see, you have to remember) This is Phycomyces of the Zygomycota. What are the dark diploid structures? Are they involved in sexual or asexual reproduction? Zygomycota: asexual reproduction Are the asexual spores flagellated? What is their ploidy level? These dome-shaped ascocarps were not available for lab. Which of the three shapes of ascocarps do they represent? (Use the technical name.) Is the mycelium in them haploid, diploid, or dikaryotic? What kind of ascocarp is represented here? Is it made of haploid, dikaryotic, or diploid mycelium? What kind of ascocarp is this? Is it a cell, organ, or organism? Which division produced these perithecia? A perithecium is a specific type of. Asexual reproduction: Ascomycota What is the ploidy level of the asexual spores? What is the name of the stalk structure that produces them? What are the asexual spores called? Puffball pointer is in a cluster of basidiospores What is the ploidy level of the basidiospores? What makes up the blue-green stained tissue to the right of them? (There may be more that one correct answer.) Are these basidiocarps haploid, diploid, or dikaryotic? Is the mycelium they come from haploid, diploid, or dikaryotic? Fungi Imperfecti What are these blue-green spores called? Are they sexual or asexual? Fungi Imperfecti: Penicillium and Aspergillus What forms the powdery substance on these fungi? (Greenish in Penicillium, black in Aspergillus) Are you observing sexual or asexual reproduction? Is this white rot or brown rot? Do the fungi eat cellulose or lignin? Brown wood rot Which division of fungi is responsible for this? Do the organisms eat lignin or cellulose? White wood rot fungus What does it eat (which part of the wood)?

2 What division does this photosynthetic organism belong to? (note the color) Is it: diploid; haploid; no way to tell The round cell is a diatom zygote. What is another, precise name for this cell? Is this the only diploid cell produced by diatoms? These cells have two flagella that run in grooves in the cell wall. Some cause red tide. What is the division? Do they ever occur in fresh-water environments? Volvox colonies Is a single colony unicellular or multicellular? Are the daughter colonies formed by sexual or asexual reproduction? Phaeophyta meiosporangium Is this a gametophyte or sporophyte? What is the ploidy level of the meiospores? Sporophyte, isomorphic Phaeophyta What is the structure at the What is the ploidy level of the asexual spores (not seen here) produced by this organism? What is the ploidy level of the tissue beneath it? Unilocular sporangium What is the general name for this type of structure? Is this a sporophyte, gametophyte, or can t tell? Phaeophyta, rockweeds What is the name of this reproductive chamber? What is the name of the structure at the pointer (NOT the cells it contains)? Is this specimen a sporophyte or a gametophyte? Does the other stage exist in this organism? (For example, if this is a sporophyte, is there a gametophyte?) These organisms have brown plastids. Which division do they belong to? Other than cellulose, what does the cell wall in this group contain? These unicellular organisms each have one flagellum. What division do they belong to? What can you say about their cell wall? Rhodophyta What are these four rounded brown cells called? What cellular division process produces them? What is the pigment that makes it red? Based on what you have learned in this course, it this nori a gametophyte, sporophyte, or can t tell? Polysiphonia Some of the hair-like structures are trichogynes. Is this a gametophyte or sporophyte? What is the precise name of the generation that produces meiospores in this division? What single cell produces the carposporophyte at the Is the plant it is attached to growing within a tetrasporophyte, female gametophyte, or male gametophyte? Fucus sporophyte Is this a cell, organ, or organism? Kalanchoe sporophyte Are the plantlets on the edge of the leaves haploid or diploid? Zonaria meiosporangia Is this a sporophyte or gametophyte? Are the meiospores haploid, dikaryotic, or diploid? Oomycota Is this structure sexual or asexual? Are the spores it produces diploid or haploid? Are the asexual spores flagellated? What is their ploidy level? What is this spherical chamber called? What is the ploidy level of the paraphyses?

3 Oomycota eggs Are they produced by mitosis or meiosis? Sporophyte or gametophyte? What is another name for this unilocular sporangium? Notice the tiny green swimming organisms (you may have to focus up and down). What Division do they belong to? What is the proteinaceous structure inside their plasma membranes that takes the place of a cell wall? Euglenophyta What can you say about the cell wall? If you could see the active swimming flagella, how many would each cell have? These organisms have no cell wall. Which division do they belong to? How many active swimming flagella does one cell have? These cells have a pellicle. What type of plastids do they have? Silica cell wall When this cell was alive, was it most likely haploid, diploid, or dikaryotic? Myxomycota What is this structure? What is the ploidy level of the round cells it contains and disperses? Note the thread-like nature of the sporangium. Does this represent sexual or asexual reproduction? What is the name of the large multinucleate single cell that changes into these meiosporangia? Meiosporangia note the fine, thread-like structures? What is the ploidy level of the plasmodium that gives rise to this? Dictyosteliomycota (Acrasiomycota) Is the sporangium at the pointer sexual or asexual? What can you say about the ploidy level of its spores? Alga with brown plastids Is this a sporophyte, gametophyte, can t you tell? These sporangia come from a plasmodium. Are they sexual or asexual? What is ordinarily found in the groove in the cell wall? What process is happening here (syngamy, meiosis)? Do these organisms have brown, green, or red plastids? (The original color is gone from this slide.) How many flagella does one of these cells ordinarily have? What is the name of the structure at the How many gametes come from a single meiosporocyte in this group? (That is, meiosis produces how many gametes?)

4 What are the sporangium-bearing structures called? What are these clusters of meiosporangia called? What single cell did the sporophyte grow from? What is the ploidy level of its zygotes? Are the eggs in these oogonia produced by mitosis or meiosis? Are these sporangia sexual or asexual? Is the structure at the pointer involved in sexual or asexual reproduction? What are the filamentous structures at the Are these cells most likely haploid, diploid, or dikaryotic? Gametophyte or sporophyte? Bryophyta What are the water-conducting cells in the middle of this stem called? Pine pollen cone What is the name of the modified leaf that this microsporangium is attached to? (Be specific) What are the light colored, more or less spherical structures in this ovary? What is the name of the stem to which this flower is attached? What is the name of the haploid tissue at the pin? What is the name of the brown papery diploid layer that immediately surrounds it? What is the name of the pollen-producing organ at the Is this a cycad or a conifer? How can you tell? (Do not take it apart, you can see all you need to see) Zamia is a cycad What is the name of the layer of cells at the Look at the slide label What kind of stele does this organism have? (The cells in the center are phloem, not pith) Is this member of the Lycopodiopsida homosporous or heterosporous? Which of the four types does this lichen represent? What is its primary mode of nutrition? (Absorption, ingestion, photosynthesis) Is this plant homosporous or heterosporous? Of the following organs, which does it have? Stem, leaf, root Coniferophyta Is this a pollen cone or seed cone? What is the name of the flattened structures the sporangia are attached to? Lycophyta The sporangium on the left produced many small spores. The one on the right produced four large ones (only one is visible). What do the small spores turn into? What do the large spores turn into?

5 Is this a seed cone or a pollen cone? (No need to dissect it further) Is this a member of Cycadophyta, Ginkgophyta, or Coniferophyta? Hepatophyta What is the ploidy level of the structure at the What is the ploidy level of the elaters? (Yes, they are cellular) Sphenophyta What are these reproductive structures called? (The whole thing) Is the plant that produced these homosporous or heterosporous? Ginkgophyta What is the name of the haploid structure at the pin? What is the ploidy level of the sclerotesta? Anthophyta What is the name of this structure that encloses the seeds? Is it part of the sporophyte or gametophyte? What is the precise name for this threechambered meiosporangium? Which division produces it? What is the ploidy level of the shield structure that the meiosporangia are attached to? What is the white structure at the tip of the pin? Is this plant a monocot or dicot? Spirogyra Chlorophyta What is the ploidy level of the dark blue cell at the Does this genus have flagellated gametes? The pointer is on the egg cell of Chara (Chlorophyta) What is the name of the organ that contains it? How does it differ from similar organs in other algae? Is the seed cone homologous with A or B? These organisms with green plastids have no cell wall. What division do they belong to? How many flagella does one cell ordinarily have? Bryophyta What is the name of the structure at the Lichen Which growth form? (Crustose, foliose, fruticose, or squamulose) What is the large black structure at the Which division of fungi is likely to be involved here? What are the dark cup-shaped structures at the ends of the branches? Is the structure at the pointer for sexual or asexual reproduction? What is the multicellular structure inside the megaspore wall? Is this organism homosporous or heterosporous? Slide and plant in water are in the same division What is the spore arrangement found on this slide? What is the name of the yellowish structure at the tip of the arrow, on the potted plant? What haploid cells does this structure produce? What structure is A inserted into on the potted plant?

6 Desert shrub with strobili Is this a sporophyte or gametophyte? These photosynthetic filaments live inside the leaves of Azolla, an aquatic fern. Which division do they belong to? What is their cell wall made of? Tmesipteris, in Psilotophyta What is the layer of cells with the thick red cell walls? What kind of stele does the Psilotophyta have? Note the meiosporangium on top of the sporophyll, and one size of meiospores. What is the ploidy level of the sporophyll? A, B, and C Which is the pollen cone? (Only one) Which division does it belong to? Liverwort gametophyte gemma cup Sexual or asexual? Are the gemmae haploid or diploid? What is the large cell at the Is this plant homosporous or heterosporous? What is the triploid tissue at the Liverwort pointer points to meiospores Is the organism that produces them a sporophyte or gametophyte? What do the meiospores produce? (What do they grow into?) What are these sporangium-bearing structures? (Not the strobilus, the individual parts) Are these leptosporangia or eusporangia? What is the ploidy level of the elater? Slide and plants go together What is the layer of thick-walled stiffening cells beneath the epidermis? What are the hair-like structures at the Are the gametes in these gametangia produced by mitosis or meiosis? What is the name of this structure? Are the characteristic threads haploid or diploid? This is an example of a. (Type of reproductive structure) Meiosporangium What are the filaments of cells between the meiospores? (They look like springs) What is another name for the male gametophytes in these microsporangia? What division is strobilus A from? What division is strobilus B from? Slide and sporophyll go together

7 This is a seed plant microsporangium. What are the multicellular objects clustered around the What is the ploidy level of the sterile jacket that surrounds the microsporangia? Is this water fern homosporous or heterosporous? What is the ploidy level of the green things? Ginkgo stem What type of stele arrangement does this stem have? What is the tissue at the tip of the What is the structure at the Where is the endosperm? What is the structure at the (The feathery thing) The plant and the slide are from the same division. Is the structure at the pointer the sporophyte or gametophyte? What type of sporophyll is in the little box? What type of stele is this? What is the name of the specialized root of this cycad? What do the cyanobacteria that live in it do for the cycad? Hepatophyta What is the ploidy level of these elaters? What is the name of the structure that contains them? Pinus stem What is the tissue at the Be specific. Is it homosporous or heterosporous?