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Q: Demonstrate an experiment to measure the rate of transpiration by Ganong's potometer.
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Q: Name the green house gas?
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A: differences between phototrophy and chemotrophy.
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Q: What is the equation for photosynthesis showing the relationship between fluxes?
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Q: possible solutions to fracking?
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Q: Can water be used for chlorophyll extraction? Why?
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Q: provide 6 beneficial products derived from anaerobic respiration
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Q: Why oil is used in experiments for measuring the transpiration?
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Identify which type of plant is suitable to produce the Biogas at constant pressure? Discuss its working operation?
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- A microorganism is grown in a fermenter under steady-state conditions. The microorganism growth follows Monod kinetics and the following stoichiometric equation: C3H6O3 +a O2 +b NH3 → c biomass + d CO2 + e H₂O Given that the biomass yield is 0.415 grams of biomass per gram of substrate, determine the respiratory quotient.Explain the construction, working, advantages and disadvantages of a floating drum biogas plants.Define water use efficiency, and explain why it is the highest among CAM photosynthesizers.
- Name the green house gas?(b) (c) Explain the biological requirements for microalgal growth and the main system components for a microalgal processing plant to produce biofuel. How is the system design dependent on its geographical location? A continuous microalgal production system is being developed using a raceway design to produce biofuel from CO2 sequestration. Calculate the area of the raceway (m²) to sequester 2000 tons of CO₂ per year if the growth rate is 75mg/L-day and estimate the amount of biofuel that could be produced. Clearly state any assumptions that you make.Give four design features of natural gas pipeline.
- If an Elodea plant removes carbon dioxide (CO2) from a solution of water, the Elodea plant will then produce: Oxygen Carbon dioxide Light energy WaterExplain THREE (3) reasons why photosynthetic rate is reduced under water deficit.Lactic acid production is carried out in the stirred tank bioreactor. 100 kg molasses entered the production tank initially. Thermophilic bacteria (45-50 0C) are used during production. According to this, a-) Calculate how much lactic acid is produced in this production. b-) draw the bioreactor and its flowchart. (raw material = molasses, the organism used for production = Thermophilic bacteria)
- Distinguish between chemostat and turbidostat showing diagrams as applied in continuous fermentation process emailAn activated sludge system operates at a flow rate (Q) of 400 m³/day (and an HRT of 0.129 day) with an incoming BOD (So) of 300 mg/L. Through pilot plant work, the kinetic constants for this system are determined to be Y = 0.5 kg SS/kg BOD, Ks = 200 mg/L, and 2/day. What mixed liquor concentration is necessary to attain a 95% BOD removal? What will the corresponding MCRT be? =What tests would you use to determine if an organism was fermentation positive or negative? Include in your answer the indicator you would use. In addition to carbohydrate, what other major organic material, present in the medium, could be broken down to produce energy and what would be the final color change be used when it is broken down?. Also indicate the three possible color changes of the indicator used and the three pH levels at which the medium changes color. Explain the purpose of the Durham or fermentation tube in the test tube and why it is upside down? What gas is produced in fermentation of glucose? The purpose of the fermentation tests are to determine members of what family from other gram negative organisms? Name a genera of Gram positive cocci from a genera of Gram positive cocci which is a non-fermenter.