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- https://bio.libretexts.org/Courses/Norco_College/BIO_5%3A_General_Botany_(Friedrich_Finnern)/12%3A_Transport/12.05%3A_Stomatal_Opening_and_ClosureStomata are pores in the epidermis of the plant, mostly found in leaves. Blue light triggers stomatal opening, and water stress triggers stomata closure. Whether a stoma is open or closed is determine...Stomata are pores in the epidermis of the plant, mostly found in leaves. Blue light triggers stomatal opening, and water stress triggers stomata closure. Whether a stoma is open or closed is determined by the turgor pressure of the two guard cells that surround it.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/16%3A_The_Anatomy_and_Physiology_of_Plants/16.02%3A_Plant_Physiology/16.2C%3A_TranspirationThis page discusses transpiration, the evaporation of water from plants, mainly through leaf stomata during photosynthesis. It highlights the necessity of replacing lost water via xylem transport from...This page discusses transpiration, the evaporation of water from plants, mainly through leaf stomata during photosynthesis. It highlights the necessity of replacing lost water via xylem transport from roots and notes the benefits of transpiration, such as aiding photosynthesis and cooling. Environmental factors like light, temperature, humidity, wind, and soil water availability influence transpiration rates.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/16%3A_The_Anatomy_and_Physiology_of_Plants/16.05%3A_Plant_Development_-_Hormones/16.5A%3A_Abscisic_acid_(ABA)This page discusses the role of abscisic acid (ABA) in plant adaptation to stress. ABA is essential for various stress responses, including closing stomata during drought, protecting against dehydrati...This page discusses the role of abscisic acid (ABA) in plant adaptation to stress. ABA is essential for various stress responses, including closing stomata during drought, protecting against dehydration, and regulating seed dormancy. It aids in root growth, leaf, and fruit abscission, and influences seedling growth and apical dominance by inhibiting lateral bud development, underscoring its importance for plant survival in challenging environments.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Map%3A_Raven_Biology_12th_Edition/36%3A_Transport_in_Plants/36.04%3A_Rate_of_Transpiration/36.4.01%3A_Stomatal_Opening_and_ClosingStomata are pores in the epidermis of the plant, mostly found in leaves. Blue light triggers stomatal opening, and water stress triggers stomata closure. Whether a stoma is open or closed is determine...Stomata are pores in the epidermis of the plant, mostly found in leaves. Blue light triggers stomatal opening, and water stress triggers stomata closure. Whether a stoma is open or closed is determined by the turgor pressure of the two guard cells that surround it.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/16%3A_The_Anatomy_and_Physiology_of_Plants/16.01%3A_Plant_Anatomy/16.1.04%3A_The_LeafThis page describes the leaf structure, highlighting its layers: the upper epidermis, which reduces water loss, and the palisade layer for photosynthesis; the spongy layer for sugar storage and gas ex...This page describes the leaf structure, highlighting its layers: the upper epidermis, which reduces water loss, and the palisade layer for photosynthesis; the spongy layer for sugar storage and gas exchange; and the lower epidermis with stomata regulated by guard cells. It also outlines the role of leaf veins, which contain xylem and phloem for water and nutrient supply, and the protective sclerenchyma cells around them, facilitating photosynthesis and food transport.
- https://bio.libretexts.org/Bookshelves/Botany/Botany_(Ha_Morrow_and_Algiers)/04%3A_Plant_Physiology_and_Regulation/4.05%3A_Transport/4.5.01%3A_Water_Transport/4.5.1.02%3A_Transpiration/4.5.1.2.02%3A_Stomatal_Opening_and_ClosureStomata are pores in the epidermis of the plant, mostly found in leaves. Blue light triggers stomatal opening, and water stress triggers stomata closure. Whether a stoma is open or closed is determine...Stomata are pores in the epidermis of the plant, mostly found in leaves. Blue light triggers stomatal opening, and water stress triggers stomata closure. Whether a stoma is open or closed is determined by the turgor pressure of the two guard cells that surround it.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Principles_of_Biology/01%3A_Chapter_1/10%3A_Photosynthesis/10.02%3A_The_structure_of_the_chloroplastAs shown in Figure \PageIndex3, a stack of thylakoids is called a granum, and the space surrounding the granum is called stroma (not to be confused with stomata, the openings on the leaves). Jus...As shown in Figure \PageIndex3, a stack of thylakoids is called a granum, and the space surrounding the granum is called stroma (not to be confused with stomata, the openings on the leaves). Just like the structure of the mitochondria was important to its ability to perform aerobic cellular respiration, the structure of the chloroplast allows the process of photosynthesis to take place.
- https://bio.libretexts.org/Workbench/General_Ecology_Ecology/Chapter_5%3A_Terrestrial_and_Aquatic_Communities/5.1%3A_Earth's_Biomes/5.1.1%3A_BiogeographyMany forces influence the communities of living organisms present in different parts of the biosphere (all of the parts of Earth inhabited by life). The biosphere extends into the atmosphere (several ...Many forces influence the communities of living organisms present in different parts of the biosphere (all of the parts of Earth inhabited by life). The biosphere extends into the atmosphere (several kilometers above Earth) and into the depths of the oceans. Despite its apparent vastness to an individual human, the biosphere occupies only a minute space when compared to the known universe. Many abiotic forces influence where life can exist and the types of organisms found in the biosphere.
- https://bio.libretexts.org/Workbench/General_Biology_I_and_II/05%3A_Unit_V-_Biological_Diversity/5.09%3A_Plantae/5.9.2%3A_Kingdom_Plantae_-_AdaptationsAs plants adapted to life on land, they had to contend with several challenges in the terrestrial environment, the largest being a lack of easy access to water as compared to an aquatic environment. F...As plants adapted to life on land, they had to contend with several challenges in the terrestrial environment, the largest being a lack of easy access to water as compared to an aquatic environment. Four major adaptations are found in all terrestrial plants: the alternation of generations, a sporangium in which the spores are formed, a gametangium that produces haploid cells, and apical meristem tissue in roots and shoots.
- https://bio.libretexts.org/Courses/Thompson_Rivers_University/Principles_of_Biology_II_OL_ed/03%3A_Systematics_Phylogeny_and_Biological_Diversity/3.04%3A_Biological_Diversity/3.4.08%3A_Kingdom_Plantae_-_AdaptationsAs plants adapted to life on land, they had to contend with several challenges in the terrestrial environment, the largest being a lack of easy access to water as compared to an aquatic environment. F...As plants adapted to life on land, they had to contend with several challenges in the terrestrial environment, the largest being a lack of easy access to water as compared to an aquatic environment. Four major adaptations are found in all terrestrial plants: the alternation of generations, a sporangium in which the spores are formed, a gametangium that produces haploid cells, and apical meristem tissue in roots and shoots.
- https://bio.libretexts.org/Workbench/Bio_11A_-_Introduction_to_Biology_I/14%3A_Photosynthesis_-_Light_Reactions/14.03%3A_The_structure_of_the_chloroplastAs shown in Figure \PageIndex3, a stack of thylakoids is called a granum, and the space surrounding the granum is called stroma (not to be confused with stomata, the openings on the leaves). Jus...As shown in Figure \PageIndex3, a stack of thylakoids is called a granum, and the space surrounding the granum is called stroma (not to be confused with stomata, the openings on the leaves). Just like the structure of the mitochondria was important to its ability to perform aerobic cellular respiration, the structure of the chloroplast allows the process of photosynthesis to take place.
