Khalan A. AP Biology Plants Immune Systems Plants serve as the main source of nutrients for countless organisms such as fungi‚ protists‚ vertebrates‚ and insects. In comparison to humans‚ a plant’s “immune system” is insignificant. However‚ plants have adapted and evolved chemical‚ physical‚ and protein based mechanisms to protect themselves against invaders. A plant’s first line of defense against pathogens is their innate immunity. The “innate-immune system” is a non-specific immune
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Bangladesh J. Plant Taxon. 18(1): 81-91‚ 2011 (June) © 2011 Bangladesh Association of Plant Taxonomists - Review paper CONSERVING THREATENED PLANTS OF BANGLADESH: MILES TO GO BEFORE WE START? HASEEB MD. IRFANULLAH1 Practical Action‚ Bangladesh Country Office‚ House 12/B‚ Road 4‚ Dhanmondi R/A‚ Dhaka 1205‚ Bangladesh Keywords: Angiosperm; Biodiversity; Convention on Biological Diversity; Red Data Book; Red List; Vascular plants. Abstract In the light of important developments in biodiversity
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6. Anatomy of Flowering Plants Tissue It is a group of cells that are similar in structure and are organised together to perform a specific function. It is of two types: Meristematic tissues and Permanent tissues Meristematic tissue It consists of actively dividing cells that are found in those regions of the plant body that show growth. The examples include root tip‚ shoot tip‚ and base of the leaves. It is classified into three types: i. Apical meristem: They are present in
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roles of mitotic cell division‚ meiosis‚ and fertilization in the human life cycle. Mitosis allows for growth and repair from the fertilized egg to the adult. In reproductively mature individuals‚ meiosis creates gametes with half the genetic material. The male gamete then fertilizes the female gamete during sexual reproduction‚ forming a zygote with a full set of genetic material. 2. Why are both cell division and apoptosis necessary for the development of an organism? Cell division is needed
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Transpiration Abstract This lab demonstrates how different environments effect the rate of transpiration in plants. A potometer is set up and placed in four different environments: one simply at room temperature (the control)‚ one with a fan pointing toward it creating a gentle breeze‚ on with a floodlight on it and a beaker felled with water as a heat sink‚ and one where the leaves are misted then covered with a transparent plastic bag. It is imperative that the tubing doesn ’t have any bubbles
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The cell wall is the tough‚ flexible but sometimes fairly rigid layer that surrounds some types of cells. It is located outside the cell membrane and provides these cells with structural support and protection. Just as the wall of the factory is for the factory. The wall also is the structure and strength. The cell membrane that separates the interior of all cells from the outside The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances
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DURATION: PCP 504 PLANT GROWTH AND DEVELOPMENT 3 UNITS 3 HOURS PER WEEK COURSE DETAILS: COURSE DETAILS: Course Coordinator: Email: Office Location: Other Lecturers: DR A.O.OLAIYA olaiyaao@unaab.edu.ng Room 131‚ COLPLANT Prof V.I.O OLOWE‚ Prof P.O.ADETILOYE‚ DR M.O.ATAYESE‚ DR O.S SAKARIYAWO COURSE CONTENT: Seed germination and dormancy. Juvenility and senescence. Translocation and respiration in crops‚ role of environmental resources. Water and water stress in plants. Light and solar radiation
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Plants need water for photosynthesis but they take in water through their roots so they need to transport the water up the stem to the leaves. Water is taken in by the root hairs because there is a higher water potential in the soil than in the root hairs. Then osmosis occurs to move the water from a cell with high concentration of water to a cell with low concentration through the permeable membrane. Once the water has moved down the concentration gradient it reaches a vessel called a xylem. As
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MKT - RED BULL Summary Red Bull is the most popular energy drink in the world‚ selling over $4.7 billion cans annually. The company was started by an Austrian entrepreneur Dietrich Mateschitz in the 80s. Red Bull pursued an aggressive yet different marketing strategy to grow their brand globally. Red Bull met an untapped need within the beverage consumer market and the strength of their brand provided them leverage to market themselves in a non-traditional manner. The brand is very strong‚ but does
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background knowledge relating to the current cell theory‚ the differences between prokaryotes and eukaryotes‚ and the structures and functions found within cells. Once this knowledge is known‚ a person is then able to give their opinion in the debate. In the 1800s‚ the cell theory was developed. This theory states that cells are found in all living things making them the basic units of life and that all cells come from other cells. In order to be classified as a cell‚ the object in question must be able
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