SamaraLab2020

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What are some of the factors and conditions that affect seed germination? Cite your sources

COconut, tomato, guava, and pechay seeds To describe the different methods of fruit and seed dispersal Samara of narra or mahogany, kamantique, talahib, amorseko, capa dela reyna, cotton, ipil-ipil, DISPERSAL OF FRUITS AND SEEDS Exercise 31 BIECTIVE PECIMENS of narra or mahogany, kamantique, talahib, amorseko, capa dela reyna, cotton, ipil-ipil, cOconut, tomato, guava, and pechay seeds ROCEDURE Evamine closely the different specimens (fruits and seeds) you gathered and take note of their al characteristics. You can exchange specimens with your groupmates. RESULTS Fill out the table below using your specimens as basis. Adaptive Structure for Agent of Fruit and Seed Dispersal Specimens Self Wind Animal Water Others Dispersion 1. 2. 4. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 159 Chapter 10 SEEDS 3. 5.

Q No 3. Write the procedure for transverse section of stem and leaf of angiosperm.

1. A Select which specimens-A, B, or C best matches the characteristic or feature described. If a feature or characteristic is present in more than one specimen, list them all. Add a descriptive and informative title to the table below. Does not develop a hypocotyl hook Has epigeal germination Has hypogeal germination Seed embryonic axis lacks the hypocotyl Develop a taproot system Will have palisade mesophyll Belong to the sporophyte generation Has 2 cotyledons The endosperm persists in a mature seed Lack an epicotyl Has a radicle Has a coleorhiza Will develop have a vascular cambium Will have parallel veins

INSTRUCTION • Answer the question properly • Do not copy here in Bartleby or Google. QUESTION 1. Is there an advantage of dry fruits over fleshy fruits? Give reasons.

INSTRUCTION • Answer the question properly • Do not copy here in Bartleby or Google. QUESTION 1. Why do you think Linnaeus considered the flower as the most variable reliable basis for plant identification?

Q.4. Rose plants have large flowers but rarely do they produce fruits. On the contrary, the tomato plant produces fruit but has very small flowers. Comment with suitable reasons.

SCI500B_Organisms_FRQ_GA (3).docx Word Design Layout References Mailings Review View Help Tell me what you want to do 2. In a common eudicot pattern of development for the common bean in the figure, the radicle emerges from the seed (1), then begins to develop into a primary root that grows down into the soil. As this occurs, the hypocotyl emerges from the seed and bends into the shape of a hook (2). The bent hypocotyl lengthens and pulls the cotyledons upward (3). When the hypocotyl reaches the soil surface, exposure to light causes it to straighten (4). Primary leaves emerge from between the cotyledons and begin photosynthesis. The cotyledons typically undergo a period of photosynthesis before shriveling (5). Eventually, the cotyledons fall off the lengthening stem, and the young plant's new leaves produce all of its food. (1 (a) Identify and explain what environmental factors influence the timing and coordination of the germination of seeds. (b) Predict what would happen if the…

Q9: select the best one that apply

Choose the correct answer

ii) UNDERGROUND STEM ADAPTATIONS Instruction: 1. Match the given photos with the following stem adaptations and give their scientific names 2. Describe the function of the adaptation Ginger Potato Yam Onion Rhizome: Horizontal stem that grows below ground, often near the surface of the soil Name of species: Adapted for: Tuber: Swollen stem due to the accumulation of the food Name of species: Adapted for: Corm: Resembles bulb but differ from them in being composed almost entirely of stem tissues Name of species: Adapted for: Bulb: Large and surrounded by fleshy leaves, with small stem at the lower end. Name of species: Adapted for:

It is all about flowering plants-use for asexual and sexual reproduction example

Instruction: MATCHING TYPE   1. Historia Plantarum A. Ethnobotany 2. Species Plantarum B. Channel protein 3. De Materia Medica C. Ecology 4. The study of cellular processes. D. Carrier proteins 5. Concerned with traditional knowledge of plant use. E. Theophrastus 6. The study of form and structure. F. Mathias Schleiden 7. Studies the interaction of plants with biotic and abiotic environment. G. Dioscorides 8. Mode of cellular secretion. H. Physiology 9. Function of aquaporin in the cell membrane. I. Carolus Linnaeus 10. It changes shape upon binding to a specific molecules in the cell membrane. J. Pliny the Elder   K. Histology   L. Phagocytosis   M. Anatomy   N. Exocytosis   O. Morphology

INSTRUCTION • Answer the question properly • Do not copy here in Bartleby or Google. QUESTION 1. Are there any differences between monocot and dicot seeds? Tabulate these differences (if any).

Q no 4: How does the plant determine passage of night and day?

Instructions: Try to uproot one living dicot (ex. dandelion) and monocot (ex. grass) representative plant. Observe the roots of each plant and characterize as follows: A. Type of root system B. Presence of primary root C. Presence of lateral roots D. Presence of adventitious roots   Note: Indicate the name of the plant, the root system it exhibits and the parts present. Tabulate the result of your observation using the table below. Answer the related questions below.   Root Characteristics     Monocot Specimen          (Name)     Dicot Specimen        (Name)   Type of root system     Presence of primary root     Presence of lateral roots     Presence of adventitious roots       1. Which root system gives better anchorage and why? 2. List down five general features of roots you can recognize in both of your specimens.

Paragraph Styles Voice Sensitivity Editor Files Reuse Files Add-ins 12. Look at the two leaves below. These leaves were taken from the same tree yet at different areas of the tree. This is a good example of the plasticity of many structures that even though they are genetically similar, the development of the structure in influenced by the localized environment of that structure. 13. Which leaf would have the greater SA:V ratio? 14. Under what environmental conditions is it advantageous to develop a thin leaf? 15. Under what environmental conditions is it advantageous to develop a thick leaf? 16. What functions of a leaf are influenced by the SA:V ratio?

INSTRUCTION • Answer the question properly • Do not copy here in Bartleby or Google. QUESTION 1. Are there any differences in morphology between monocot and dicot fruits? Tabulate these differences (if any).

ACTIVITY &8: Fruit and seed anatomy (Student dissection or demonstration) The fate of the parts of the flower can differ among angiosperms. Floral parts typically become part of the seed and/or the fruit. 1. Obtain a germinated bean and use p. 145 of the atlas as a guide. The pod that housed the bean is the fruit of the bean plant. The bean is the seed of the plant. 2. The papery outer red covering of the bean is the seed coat, which developed from the integuments of the ovule. g eno le al boez 3. The white structure on the internal region of the bean is the hilum, the site where the seed was attached to the inner walls of the pod. eliunt ynd Vhutem Js 4. Draw and label the exterior of the bean in the space provided. U CLO22-26Cpou 5. Remove the seed coat to expose the pale underlying structure (cotyledon). Gently pry open the bean. How many cotyledons does a bean have? 6. Once the bean is opened, the embryonic sporophyte is revealed. It consists of a "leaf- like" structure called the…

INSTRUCTIONS: ESSAY (Write in your own words no longer than 350 words)   Seed germination may depend on the presence or absence of several external and internal factors. Discuss one external and one internal factor that may influence the successful germination of seeds.

INSTRUCTION: Write True or False.   1. An aggregate fruit develops from the fused ovaries of a floral cluster. 2. In the fern leaf, the clusters of sporangia are called sporophylls. 3. The plumule is the first seed leaf that absorbs and digests nutrients needed for seed germination. 4. A false fruit develops from the expansion of the hypanthium or floral tube that encloses the ovary. 5. The endocarp is the edible fleshy part of the fruit. 6. In a bean seed, the part of the embryo which develops into the leaves and upper portion of the stem is known as the hypocotyl. 7. The embryos of corn and other grass seeds are partially enclosed in a protective sheath called the coleorhiza. 8. The embryonic shoot system is the radicle. 9. The seed coat develops from the nucellus of the ovule. 10. In the Zea mays seed, the aleurone layer is located outside the endosperm layer. 11. The pedicel bears more than one flower in a cluster. 12. The sunflower (Helianthus sp.) is an example of a capitulum…

Activity_BIO 100 (Slide 2 of 3: Pollination vs Fertilization) Luis Carlos Ahuage CC Using Doodling, mark-- using the two flowers-- your explanation for the differences between Pollination and Fertilization tip: be sure not to cause self-fertilization in your flower! Stigma -Stigma Anther Carpel Anther Carpel Stamen Stamen- Style Ovary Ovule Style Ovary Ovule Filament Filament Petal Petal (petals = corolla) (petals corolla) %3D Sepal (sepals = calyx) Receptacle Sepal (sepals = calyx) Receptacle Peduncle Peduncle You have 8 minutes TOTAL to complete 3 slides. Do not save your recording yet, MOVE TO THE NEXT SLIDE... 0:00 / 0:00 O 1 nere to search 09

Section B. Classification of Seeds Examine different types of seeds listed in the table below (actual specimen if available or a photograph) and complete table. Specimen No. of cotyledons Endosperm (presence or absence) Corn Rice Coconut Red/white bean Peanut String bean/Baguio bean/pea Mango Squash/Melon Lemon Sunflower

The data that is attached below was collected during a lettuce seed ecotoxicity assay. Lettuce seed assays are used to compare the ecotoxicity of methanol, ethanol, and isopropanol by these alcohols' effects on germination rate and root elongination. Using the attached data, help answer which alcohol seems to be the most toxic to lettuce seeds. Why or why not would your results be expected? What does this information tell you about using ecotoxicity data to estimate human toxicity?

Solve theim

Each of the components below should be 1 or at most 2 sentences. Abstracts are 1 paragraph, it is unusual for them to have a reference and must be concise. Explain this hypothesis in detail: The hypothesis can be tested by subjecting groups of Brassica rapa plants to different light exposure durations while keeping other growth conditions constant and recording the time taken for each group to reach the flowering stage. Summarize the methods and experimental design including control and experimental groups and the length of this Brassica rapa experiment. Describe results and analysis Complete the abstract with a brief conclusion of the results of your experiment.

Fitness can be measured  as seed set (seed production) Why is it important to measure fitness as seed production?

1. Identify the fixation and embedding protocols of seed tissues for microtome sectioning? 2. How thin does a microtome cut?

Please explain What are biological concepts of this experiment, limitations and improvements…Experimental techniques & the effect of the change of variables on the results

LEAF TYPE AND ARRANGEMENT Instruction: 1. Match the given photos with the following leaf characteristics 2. Name the plant species and draw their specific leaf Betel Papaya Ixora Cogon grass Cassava River tamarind Lavender sorrell A. Hibiscus a) Simple chordate leaf Name of species: Diagram: b) Simple peltate leaf Name of species: Cananga Golden trumpet Diagram: Simple linear leaf Name of Diagram Palmately compound leaf Name of species: Diagram: Paripinnate compound leaf Name of species: Diagram: f) Imparipinnate compound leaf Name of species: Diagram: g) Opposite leaf arrangement Name of species: Diagram: h) Alternate leaf arrangement Name of species: Diagram: i) Whorled leaf arrangement Name of species: Diagram: j) Spiral leaf arrangement Name of species: Diagram: c) species: d) e)

Select the correct adaptation:advantage match. seeds : dormancy pollen : sporophyte disperal fruit : pollination spore : dormancy

Explain this slide in simple terms and de