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- One region in which the use of zinc fertilizers has shown great success is: a) Northern Appalachia b) Eastern Ukraine c) Central Anatolia d) the U.S. Desert Southwest
- In India, zinc is often combined with which material to make fertilizer? A) horse manure b) ammonium nitrate c) tea leaves d) urea
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- Zinc deficiency is more common in developing countries because: a) inhabitants usually eat a low-meat diet b) inhabitants usually eat a high grain diet which is high in phytate c) zinc may be lost through diarrhea, which is common in these countries d) all of these Probably the best indicator of micronutrient deficiency in children is a) hair loss b) low energy c) growth stunting d) irritability Genetic modification of a plant which results in increased zinc content and decreased phytate content is called: a) bio-enrichment b) bio-fortification c) nutrient engineering d) essential mineral genomics One region in which the use of zinc fertilizers has shown great success is: a) Northern Appalachia b) Eastern Ukraine c) Central Anatolia d) the U.S. Desert Southwest In India, zinc is often combined with which material to make fertilizer? A) horse manure b) ammonium nitrate c) tea leaves d) ureaRegarding nitrogen fixation, are the following statements True or False? a) Atmospheric nitrogen is reduced to the biologically useful form NH3 (or NH4 ). b) Nitrogen fixation in nature and in the lab requires a metal cofactor or catalyst. c) The availability of fixed nitrogen limits biological productivity. d) Ammonium from the atmosphere is fixed to more usable forms of nitrogen, such as nitrite (NO2–). e) Nitrogen fixation is energetically neutral, using a negligible amount of ATP. f) The enzyme nitrogenase, which takes part in nitrogen fixation, is inactivated by oxygen.Biofuels offer an attractive alternative to fuel, but there are concerns about the resources and logistics of producing mass amounts of corn. Which organism is being considered as an alternative source of biofuel? A) cyanobacteria B) Escherichia coli C) yeast D) algae
- 9) Which one of the below given properties can not be among the material selection criteria for biomaterials preparation ? a) Mechanical properteis b) Cheap and available c) Water Absorption rate d) Biostability duration32) What is the goal of bioremediation? A) To improve human health with the help of living organisms such as bacteria B) To clean up areas polluted with toxic compounds by using bacteria C) To improve soil quality for plant growth by using bacteria D) To improve bacteria for production of useful chemicals E) To kill pathogenic bacteria with the use of antibiotics 33) An organic solvent widely used in industrial processes, 1,1,1-trichloroethane (TCA), is a major environmental pollutant affecting human health and damaging the ozone layer. Recently, researchers isolated the first bacteria able to degrade TCA. They found that the bacteria use hydrogen as an electron donor, TCA as an electron acceptor, and acetate as a carbon source. Based on the preceding information, deduce the method used to isolate these bacteria. A) Gram staining B) Enrichment culture C) Direct sequencing D) Seeding 34) Multicellularity and large body size of eukaryotic organisms require high metabolic rates and…For both fertilizers, plant growth began to decrease when 1.5 kg of fertilizer was given. D) Rhizobia are bacteria that live on the roots of some plants, such as legumes like pea plants. Rhizobia convert an element in the atmosphere into ammonia. Identify and explain the type of relationship this represents. A) It is parasitism because the bacteria absorbs food from the pea plant. It is commensalism because the bacteria and pea plant don't harm each B) other. It is competition because the rhizobia and pea plant both need the limited amount of available nitrogen. C) It is mutualism because the bacteria receives carbon from the pea plant, D) Eliminate while the plant uses the ammopia to make amíno acids. ITEST PREP FAX 1-877-816-0808 Read Our Blog PHONE 1-877-377-9537 Privacy Policy S FOR WHAT'S NEXT © USATestprep, LLC 2021, All Rights Reserved. Sign c
- In New York, farmers typically have a 3 year crop rotation of corn – soybeans – green manure. A) explain one reason crop rotation is important in farming B) explain what green manure is and why a grower would use it as part of their rotation scheduleDicotyledonous weeds are destroyed by a chemical called: A) Indole - acetic acid B) 2- 4 dichlorophenoxy acetic acid C) Abscisic acid D) Naphthalene acetic acid21) The use of Penicillin and Bacteriocins are examples of: a) Toxin-mediated killing b) Viral mediated lysis c) Predation-mediated killing d) Metabolite inhibitors e) DNA inhibitors 22) Evaluating the effectiveness of a chemical or reagent is done through: a) Periodic transfer and refrigeration b) the Phenol Coefficient test c) Lyophilization d) Viral mediated lysis e) a and b23) Salmonella typhi and Staphylococcus aureus are two species used in: a) Toxin-mediated killing b) Viral mediated lysis c) Predation-mediated killing d) Autoclave effectiveness evaluation e) Phenol Coefficient test24) Chemotherapeutics have ____ Toxicity: a) Broad spectrum b) General c) Differential d) Selective e) c & d 25) The gas that has been used recently used to decontaminate biological safety cabinets is: a) EtO b) Beta-propiolactone c) NO Gas d) N2O Gas e) Vapor-phase H2O2
- Which of the following is incorrect? a) Chemoheterotrophs obtain their energy from an organic compound b) Photoautotrophs obtain their carbon from an organic compound c) Both carbon and energy can be transferred from photoautotrophs to chemoheterotrophs d) Chemoheterotrophs are found in higher trophic levels of a food chain e) Photoautotrophs are considered primary producersWhich of the following is often added to wine to inhibit growth of the natural microbial populations on grapes?a) Benzoic acid b) Lactic acid c) Carbon dioxided) Sulfur dioxide e) OxygenA5 A6 is simply a flow of huge amount of air, usually from a higher pressure area to a low pressure area. a) Tidal b) Solar c) Wind . Which of the following belongs to the thermochemical process of bioenergy production? a) Anaerobic digestion b) Fermentation d) Geothermal c) Transesterification d) Combustion