Factors Limiting Photosynthesis The rate of photosynthesis increases with increasing light intensity. But too much light intensity can slow down the rate of photosynthesis because the light damages chloroplasts in the leaf. The higher the temperature the greater the rate of photosynthesis as photosynthesis is a chemical reaction and chemical reactions increase with temperature. But at temperatures above 40 C the rate slows down because the enzymes involved are destroyed
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Kobayashi‚ H. (1985) 15N study on the fate of foliarly applied urea nitrogen in tea plant. Soil Science and Plant Nutrition‚ 31(1)‚ 123-131. 13. Krishnapillai‚ S and Ediriweera‚ V.L. (1986). Influence of levels of nitrogen and potassium fertilizers on chlorophyll content in mature clonal tea leaves. Srilanka Journal of Tea Sciences‚ 55(2)‚ 71-76. 14. Malenga‚ N.E.A. (1985) Response of young clonal tea to nitrogen. Quarterly Newsletter‚ Tea Research Foundation (Central Africa) (79)‚ 7. 15. Malenga‚ N.E
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* Fungi are Eukaryotic‚ mainly multi cellular organisms includes molds and mushrooms * fungi lack chlorophyll * they are heterotrophic and cell walls contain chitin * more closely related to animals * supergroup Unikonta categorized as opisthokonts bc of single posterior flagellum * heterotrophs‚ secrete enzymes which digest food outside the body‚ the broken down food is then absorbed by hyphae * 3 types of fungi * decomposer fungi‚ absorb nutrients
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Energy in Cell Virtual Lab - Week 3 NAME: ________________________________________ 1. What is the importance of the light and dark reactions in photosynthesis? Photosynthesis works by absorbing light. Our sun gives off energy and the chlorophyll from the plant absorb this energy. The energy is then used to separate water into hydrogen and oxygen and then they combine hydrogen and carbon dioxide to make sugars. 2. What happens to food energy during photosynthesis? During cellular
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INVESTIGATE A FACTOR AFFECTING THE RATE OF PHOTOSYNTHESIS. Introduction Photosynthesis is a chemical reaction which takes place inside the green plants (plants with chlorophyll‚ a pigment found in chloroplasts which causes the colour of the plants and it is the main photosynthetic pigment) and light energy is converted into chemical energy. Carbon dioxide‚ water and sunlight is transformed into sugar an oxygen‚ which later will be used as energy for the plant. The chemical equation of photosynthesis
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1. Understand what is the same about all life‚ and what makes life diverse LOCS A. List the five characteristics all organisms on Earth share B. Explain why the first four are required for life C. Differentiate heterotrophs and autotrophs 2. Understand that energy to sustain life is derived from chemical potential energy LOCS A. Relate the distance of electrons from their protons to the concept of chemical potential energy B. Define exergonic and endergonic chemical reactions
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Yr 12 Biology Summary Notes Rangitoto College 2006 STRUCTURE AND FUNCTION IN CELLS Achievement Standard 90464 – Biology 2.8 – Describe cell structure and function TYPES OF CELLS • PROKARYOTIC CELLS = more primitive‚ unicellular‚ have no organised nucleus‚ no membrane-bound organelles‚ genetic material is 1 circular DNA molecule‚ can have tiny extra rings of DNA called plasmids‚ all have cell walls e.g. bacteria and blue-green algae • EUCARYOTIC CELLS = unicellular
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large intestines‚ as the meat has already been absorbed in the small intestine * * plan‚ choose equipment or resources and perform first-hand investigations to gather information and use available evidence to demonstrate the need for chlorophyll and light in photosynthesis * perform a first-hand investigation to demonstrate the relationship between surface area and rate of reaction * identify data sources‚ gather‚ process‚ analyse and present information from secondary sources use
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pigments appear lower on the paper. The pigments also were attracted to the paper at different levels. Each pigment has a specific Rf value which is the distance the pigment migrated divided by the distance the solvent migrates. The data shows that Chlorophyll a has the highest Rf value‚ and it did travel the farthest out of the pigments. The control in this experiment was the same spinach leaves used. Error was no Carotene detected. Carotene is the very abundant in plants‚ so the lack of it found was
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cyanobacteria such as the photosynthetic apparatus and the respiratory electron transport system are dependent on Fe supply (Raven et al.‚ 1999). Other important cellular processes such as nitrogen assimilation (Raven‚ 1988)‚ ribonucleotide synthesis‚ chlorophyll synthesis and oxygen radical detoxification are also Fe dependent. Prokaryotes‚ including cyanobacteria‚ have developed several strategies to enhance survival during periods of Fe deficiency. Some of these include the release of internal Fe stores
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