• What Does a High Concentration of Salt Do to a Cell

    What Does a High Concentration of Salt Do to a Cell Membrane Osmosis is the movement of water across a membrane Salt triggers osmosis by attracting the water and causing it to move toward it across the membrane Salt is a solute When you add water to a solute it diffuses spreading out the concentration of salt

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  • The Effect Of Substrate Concentration On The Activity Of

    2008 6 5 Catalase is an enzyme found in food such as potato and liver It is used for removing Hydrogen Peroxide from the cells Hydrogen Peroxide is the poisonous by product of metabolism Catalase speeds up the decomposition of Hydrogen Peroxide into water and oxygen as shown in the equations below

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  • The Effects of pH on Microbial Growth

    Yogurt pickles sauerkraut and lime seasoned dishes all owe their tangy taste to a high acid content Figure 1 Recall that acidity is a function of the concentration of hydrogen ions H and is measured as pH Environments with pH values below 7 0 are considered acidic whereas those with pH values above 7 0 are considered basic

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  • The Effect of Temperature on the Permeability of Beetroot

    Effect of Detergent Concentration on Membrane Permeability of Beetroot Cells 2086 Words 9 Pages Aim To investigate how effect of Detergent Concentration cont has on Membrane permeability of Beetroot cells Hypothesis I predict that as detergent concentration increases the solution will become less clear plus mass increases

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  • The Effect of Light Intensity on Plant Growth

    In effect light intensity can vary depending on the type of color used as well as the wattage amount contained in a bulb The energy intensity provided by red light stimulates overall growth throughout the plant body while blue light helps to regulate growth rates within the

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  • Effect of ethylene on quality of fresh fruits and vegetables

    2012 5 29 Postharvest Biology and Technology 15 1999 279–292 Effect of ethylene on quality of fresh fruits and vegetables Mikal E Saltveit Mann Laboratory Department of Vegetable Crops Uni6ersity of California One Shields A6e Da6is CA 95616 8631 USA Received 10 June 1998 received in revised form 28 October 1998 accepted 11 November 1998

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  • International Journal of Food Microbiology

    The International Journal of Food Microbiology publishes papers dealing with all aspects of food microbiology Articles must present information that is novel has high impact and interest and is of high scientific quality They should provide scientific or technological advancement in the Read more

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  • The Effect of High Temperatures on Enzymes

    Although increased temperatures can cause enzymes to work more quickly if the temperature gets too high the enzyme stops working Enzymes rely on having a very specific three dimensional structure to work right If the temperature around an enzyme gets too high the enzyme loses its shape which is known as denaturation and ceases to work

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  • The Effect of Concentration of CO2 on the Average Rate

    2020 10 13 The high correlation of the best fit line shows that it fits very closely to the actual points In addition the standard deviation value was used to calculate the error and the variance in the data points for each concentration is shown on the graph

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  • Reactor Concepts Manual Biological Effects of Radiation

    2020 10 16 Reactor Concepts Manual Biological Effects of Radiation USNRC Technical Training Center 9 1 0603 Biological Effects of Radiation Whether the source of radiation is natural or man made whether it is a small dose of radiation or a large dose there will be some biological effects This chapter summarizes the short and long term consequences

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  • Factors affecting the rate of photosynthesis

    2021 4 23 This can be measured by the amount of glucose produced by a plant over a given time This topic is especially important to scientist and farmers By understanding the factors that affect the rate of photosynthesis they can do work to try and increase the rate of

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  • Factors Affecting Aerobic Respiration 8 Factors

    2 days ago Specific response to higher CO 2 concentration varies with the particular kind of tissue and plant The effect of CO 2 concentration is more significant when the temperature and oxygen supply are low At a very high concentration of CO 2 the plant tissues are injured or even killed 7 Protoplasmic Conditions The young growing tissues which have greater amount of protoplasm as compare to

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  • Core practical

    2020 7 26 Diffusion is the movement of particles from a high to lower concentration Osmosis is the diffusion of water across a membrane Active transport moves particles from low to higher concentration

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  • Ozone Layer Depletion

    Ozone layer depletion is the thinning of the ozone layer present in the upper atmosphere This happens when the chlorine and bromine atoms in the atmosphere come in contact with ozone and destroy the ozone molecules One chlorine can destroy 100 000 molecules of ozone It is destroyed more quickly than it is created

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  • Science Fair Project Ideas

    2019 11 4 Plant growthdetermine the effects of various nutrients amounts of water hours of sunlight strength of weed killer temperature pollutants pH levels on plant growth and crop yieldscan plants live without oxygen carbon dioxidewhat percentages of various plants is water

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  • Effect of high consentrated dissolved oxygen on the plant

    In this study the effect of high concentrated dissolved oxygen on the lettuce plant growth in a deep hydroponic culture under a low greenhouse temperature has been investigated

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  • Nitrate

    The δ 18 O vs δ 15 N in nitrate as it is progressively assimilated by four eukaryotic species of marine phytoplankton Both δ 15 N and δ 18 O in nitrate increase as nitrate is consumed and they do so with an O N ratio for isotopic discrimination 18 ε 15 ε of ∼1 Dashed lines

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  • COMBINED SCIENCE TRILOGY

    2019 10 30 A student investigated the effect of different concentrations of sugar solution on pieces of carrot This is the method used 1 Weigh five pieces of carrot 2 Place each piece into a different tube 3 Into each tube add 20 cm3 of water or one of the sugar solutions as shown in Figure 6 4 Leave the apparatus for 2 hours 5

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  • The Role of Soil pH in Plant Nutrition and Soil Remediation

    Firstly the effects of soil pH on substance availability mobility and soil biological processes are discussed followed by the biogenic regulation of soil pH It is concluded that soil pH can broadly be applied in two broad areas i e nutrient cycling and plant nutrition and soil remediation bioremediation and physicochemical remediation

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  • Greenhouse Effect

    Greenhouse Effect is the process of heating of the surface of Earth till the troposphere It happens because of higher concentration of carbon dioxide water vapour methane and other gases Sunlight heats up Earth s surface and subsequently the energy is

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  • Movement

    Osmosis Osmosis is a term describing the movement of water from across a selectively permeable membrane as a result of a concentration gradient I e it is a special type of diffusion concerned only with water The water moves towards a high concentration of a solute with the effect of equalising the solute concentration across a permeable membrane

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  • Dark Energy Dark Matter

    2010 8 19 What is dark energy More is unknown than is known we know how much there is and we know some of its properties other than that dark energy is a mystery but an important one Roughly 70 of the Universe is made of dark energy Dark matter makes up about 25 The resteverything on Earth everything ever observed with all of our instruments all normal matter adds up to

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  • Carbon Cycle

    2 days ago Carbon atoms are constantly being cycled through the earth s ocean by a number of physical and biological processes The flux of carbon dioxide between the atmosphere and the ocean is a function of surface mixing related to wind speed and the difference the concentration of carbon dioxide in the air and water The concentration in the ocean depends on the atmosphere and ocean carbon

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  • Osmosis

    Effects of osmosis in plant cells Plant cells are enclosed by a rigid cell wall When the plant cell is placed in a hypotonic solution it takes up water by osmosis and starts to swell but the cell wall prevents it from bursting The plant cell is said to have become turgid i e swollen and hard

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  • Factors affecting Enzyme Activity

    2021 10 24 Factors affecting Enzyme Activity The activity of an Enzyme is affected by its environmental conditions anging these alter the rate of reaction caused by the enzyme In nature organisms adjust the conditions of their enzymes to produce an Optimum rate of reaction where necessary or they may have enzymes which are adapted to function well in extreme conditions where

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  • Effect of Temperature on the Cellular Respiration of Yeast

    Acc 3303 Exam 1 review ATI Final Study Guide Nursing care of children Topic 3 DQ 1You and a friend are talking about the probability of getting a heads on a single Week 8Portfolio Assignment100 Week 8Discussion AssignmentTWE Global ratio Tool Assessment90 Week 7Written Assignment94

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  • Home Page Journal of Biological Chemistry

    We use cookies to help provide and enhance our service and tailor content To update your cookie settings please visit the Cookie Preference Center for this site

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  • Effects of ambient oxygen and of fixed nitrogen on

    Soybean Glycine max L Merr root nodules contain the enzymes of the ascorbate glutathione cycle for defense against activated forms of oxygen Nodulated roots of hydroponically grown soybean plants were exposed to atmospheres containing 2 21 50 or alternating 21 and 50 kilopascals of O 2 T

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  • The effect of substrate concentration on the rate of

    2018 4 22 Research question Investigation on the effect of different substrate concentrations which in this case are the manipulated hydrogen peroxide concentrations on the rate of enzyme activity of catalase in liver on the decomposition of the hydrogen peroxide Introduction Enzymes are biological catalysts that catalase in biochemical reactions in living cells

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  • School biology notes PHOTOSYNTHESIS

    2021 6 4 Doc Brown s school biology revision notes GCSE biology IGCSE biology O level biology US grades 8 9 and 10 school science courses or equivalent for 14 16 year old students of biology Sub index for this page Introduction to photosynthesis What is the process of photosynthesis Plant structure and photosynthesisleaf adaptations

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  • PDF The Effect of Detergents on the Germination and

    Likewise both the detergents had no significant effect on the total number of leaves and leaf width of Zea mays seedling A common laundry detergent in a concentration up to 2 5 g L −1 did not

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  • What is Biological Oxygen Demand and how does it Affect

    Biological oxygen demand measures the amount of oxygen used by microorganisms in the oxidation of organic matter When there are too many phosphates in aquatic systems algae proliferates dies and then aerobic bacteria decomposes them starving the water of oxygen and killing bacteria and other aerobic creatures

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  • Scientific American Science News Expert Analysis Health

    Scientific American is the essential guide to the most awe inspiring advances in science and technology explaining how they change our understanding of the world and shape our lives

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  • Required practical

    2021 10 25 The effects on plant tissues at a cellular level can be observed using a microscope Another way of looking at osmosis in plant cells is to mount a piece of onion skin or beetroot on microscope

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  • Effects of Gibberellins on Plant Growth and Development

    High concentrations of GA are only slightly inhibitory results in increased dry weight This is mainly due to increased carbon fixation and is believed to be a secondary effect of increased leaf growth 5 Not all plants respond to GA by increased shoot growth and the effect

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  • The Effects of pH on Microbial Growth

    Yogurt pickles sauerkraut and lime seasoned dishes all owe their tangy taste to a high acid content Figure 1 Recall that acidity is a function of the concentration of hydrogen ions H and is measured as pH Environments with pH values below 7 0 are considered acidic whereas those with pH values above 7 0 are considered basic

    Get Price
  • The Effect of High Temperatures on Enzymes

    Although increased temperatures can cause enzymes to work more quickly if the temperature gets too high the enzyme stops working Enzymes rely on having a very specific three dimensional structure to work right If the temperature around an enzyme gets too high the enzyme loses its shape which is known as denaturation and ceases to work

    Get Price
  • International Journal of Food Microbiology

    The International Journal of Food Microbiology publishes papers dealing with all aspects of food microbiology Articles must present information that is novel has high impact and interest and is of high scientific quality They should provide scientific or technological advancement in the Read more

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  • Understanding Laboratory Wastewater Tests I

    2010 10 14 For most people a complete understanding of the standard methods required to accurately complete critical wastewater analytical tests is not necessary However a fundamental understanding of the theory behind and working knowledge of the basic procedures used for each test and the answers to commonly asked questions about each test can be a valuable tool for anyone involved in generating

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  • Effect of Nitrate and Phosphate Levels on the Growth of

    The experiment in this lesson plan demonstrates two main ideas The first is a test of what levels of nitrate and phosphate allow for optimum algal growth The second demonstrates at which levels of nitrate and phosphate algal blooms may occur causing harm to an aquatic ecosystem

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