Energy Budget of plants: Plants are the source of energy for all of us and all living things on earth. Energy is the currency of the universe = $ (work) * Energy budget= must be balanced Energy budget * Plants collect and process energy * Basic source SUN * Diffuse – need to collect a lot to get fixed energy * (sugar)- LEAVES = solar collector * Everything must be paid for and pay for itself over time Plants are sentient beings * Perceive environment and
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(mesophyll) – designed for photosynthesis‚ it is a tall cell with a large surface area contained many chloroplasts. Located on top side of the leaf in plants to allow optimum absorption of light and carbon dioxide (inputs for photosynthesis). Xylem and Phloem cells (combined referred to as vascular bundles) – cells responsible for the transport
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turn account for primary growth i.e. elongation. 2. Derivatives a. Protoderm - becomes the epidermis b. Procambium - becomes the vascular tissue (xylem and phloem) c. Ground Meristem - becomes the cortex and pith B. LATERAL MERISTEMS - Secondary Growth 1. Vascular Cambium a. Secondary Xylem b. Secondary Phloem 2. Cork Cambium a. Periderm (bark) C. INTERCALARY MERISTEMS 1. Most common in grasses 2. Occur at base of nodes II. NON-MERISTEMATIC TISSUES A
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longitudinal wrinkles with rootlet scars. Internally‚ a ample numbers of cork cells‚ phelloderm (more than 6 layers) with lignified stone cells filled with dark reddish-brown matter‚ starch grains‚ mucilaginous matter‚ yellow oil cells (in cortex phloem)‚ xylem parenchyma‚ pericycle include stone cells of narrow lumen.
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IGCSE Biology Notes Refined by KmQ Unit 1 : Characteristics of living things Biology is the study of living organisms. For something to be alive it needs to perform all seven functions of living things.MRS GREN Movement‚ Respiration‚ Sensitivity‚ Growth‚ Reproduction‚ Excretion‚ Nutrition. 1. Movement Most organisms are able to move their whole body even plants can shift their stem towards the sunlight and their roots move towards healthy soil. 2. Respiration IT is the breakdown of food
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Plant Tissues A mature vascular plant (any plant other than mosses and liverworts)‚ contains several types of differentiated cells. These are grouped together in tissues. Some tissues contain only one type of cell. Some consist of several. Meristematic The main function of meristematic tissue is mitosis. The cells are small‚ thin-walled‚ with no central vacuole and no specialized features. Meristematic tissue is located in • the apical meristems at the growing points of roots and stems. • the
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Botany Lab Introduction to Microscope Circa 1000 AD. = the first vision aid was invented (inventor unknown) called a reading stone. Circa 1284= Italian‚ Salvino D’ Armante is credited inventing the first bearable eye glass. 1590= two dutch eye glass makers‚ Zaccharias Janssen and Hans Janssen experimented with multiple lenses. 1665= English Physicist‚ Robert Hooke looked at a silver of cork through a microscope lens and noticed some “pores” or “cells”. 1674= Anton Van Leeuwenhoek built
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Tinospora Cordifolia: A Multipurpose Natural Plant - A Review Abstract: Tinospora cordifolia (Guduchi) is a widely used shrub in folk and AYUSH systems of medicine. This review presents a detailed survey of the literature on chemistry and medicinal properties of Tinospora Cordifolia. The chemical constituents reported from this shrub belong to different classes such as alkaloids‚ diterpenoid lactones‚ glycosides‚ steroids‚ sesquiterpenoid‚ phenolics‚ aliphatic compounds and polysaccharides. The
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meristems – thickening of the cambium (secondary growth) Plant Tissues Plant Tissues Xylem – conducts water and mineral ions; fluids can move laterally and vertically. Tracheids – dead at maturity Vessel members – dead at maturity Phloem – conducts sugars and organic solutes Sieve tubes – alive at maturity; distributes sugars all throughout the plant. Primary Structure of shoots Apical Meristem Inside the stem Closer look at leaves Closer LOOK at Leaves Leaf veins
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ASHOKA (SARACA ASOCA) Classification[4] Kingdom Divison Class Order Family Genus Species Plantae Magnoliophyta Mgnoliopsida Fabales Caesalpinaceae Saraca Asoca DEVSTHALI VIDYAPEETH COLLEGE OF PHARMACY CONTANTS Introduction………………………………………………………………01 Synonyms……………………………………………………………………01 Biological source…………………………………………………….01 Geographical source…………………………………………….01 Cultivation and collection………………………………..02 Macroscopic Characters…………………………………….03 Botanic description……………………………………………
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