High-Fructose Corn Syrup and Enzyme Glucose Isomerase Quiz
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Questions and Answers

What enzyme is used to convert a substantial fraction of glucose to fructose in high fructose syrup?

  • Sucrase
  • Maltase
  • Amylase
  • Glucose isomerase (correct)

Why is high-fructose corn syrup (HFCS) commonly used in processed foods and beverages in the U.S?

  • It is more expensive than sugar, indicating higher quality
  • It is easier to extract from corn than sugar from sugarcane
  • It is less sweet than sugar, making it suitable for a wide range of products
  • It has a higher microbiological stability than sugar (correct)

Which type of high fructose corn syrup (HFCS) is sweeter than sucrose?

  • HFCS-55 (correct)
  • HFCS-42
  • HFCS-30
  • HFCS-90

What are sugar alcohols such as maltitol and erythritol primarily made from?

<p>Reducing sugars (C)</p> Signup and view all the answers

Why are sugar alcohols like sorbitol and mannitol used as sweeteners?

<p>They have lower caloric content compared to regular sugar (A)</p> Signup and view all the answers

Which activity does the text primarily focus on involving the application of sugar and starch manufacturing theories?

<p>Daily biotechnology tasks (A)</p> Signup and view all the answers

What are the major types of microalgae mentioned in the text?

<p>Diatoms, green algae, golden brown, blue-green algae (A)</p> Signup and view all the answers

What is the economic advantage of using animal fats for biodiesel production compared to plant crops?

<p>Animal fats are priced more favorably for conversion (D)</p> Signup and view all the answers

Why is water removal important in the biodiesel production process?

<p>Water causes hydrolysis of triglycerides (B)</p> Signup and view all the answers

Which chemical reactions are involved in biodiesel production?

<p>Transesterification and esterification (C)</p> Signup and view all the answers

What is the process of producing biodiesel from animal fats known as?

<p>Transesterification (B)</p> Signup and view all the answers

Which feedstock is commonly used in biodiesel production according to the text?

<p>Yellow grease (B)</p> Signup and view all the answers

What is one limiting factor in the industrial uses of vegetable oils?

<p>Susceptibility to becoming rancid (A)</p> Signup and view all the answers

Apart from being used as cooking oil, what is another use of biofuel mentioned in the text?

<p>Oil spill cleanup (C)</p> Signup and view all the answers

In what industry are vegetable oils increasingly used as insulators?

<p>Electrical (B)</p> Signup and view all the answers

What is one environmental impact mentioned in the text associated with vegetable oils?

<p>Toxic effect on animals and plants (D)</p> Signup and view all the answers

Which of the following is NOT mentioned as an industrial use of vegetable oils?

<p>Power generation (C)</p> Signup and view all the answers

Apart from being used as fuel transportation, what other use of biofuel is highlighted in the text?

<p>Pet food additive (C)</p> Signup and view all the answers

What can happen when ignition sources are present in the context of biofuels?

<p>Catch fire (C)</p> Signup and view all the answers

Which action is strictly prohibited in relation to the document according to the text?

<p>Reproduction without prior written permission (A)</p> Signup and view all the answers

What environmental impact is associated with biofuels mentioned in the text?

<p>Helping reduce global warming (B)</p> Signup and view all the answers

What happens when dry clay contacts floating oil based on the text?

<p>Oil-mineral aggregates are formed (B)</p> Signup and view all the answers

Why is wetting dry clay with water a less efficient process for interacting with oil according to the text?

<p>It increases the mass of clay needed to sink oil (B)</p> Signup and view all the answers

Under what condition can sending oil to the bottom of a body of water be an acceptable remedy for spills according to the text?

<p>If the oil can be biodegraded in the sediment (D)</p> Signup and view all the answers

What is the main ability possessed by soap and detergent when dissolved in water?

<p>Removing dirt from surfaces (D)</p> Signup and view all the answers

Why is it important for oil droplets and dirt particles to be suspended in a stable and highly dispersed condition in the detergent solution?

<p>To prevent redeposition on the cleaned surface (B)</p> Signup and view all the answers

Why are small oil droplets or fine dirt particles preferred in washing fabrics and materials?

<p>Because they are more easily carried through the material interstices (C)</p> Signup and view all the answers

What would happen if oil droplets and dirt particles were not deflocculated in the detergent solution?

<p>They would coalesce into larger aggregates (B)</p> Signup and view all the answers

What is the consequence of oil droplets and dirt particles redepositing on a cleansed surface?

<p>Reduction in the cleanliness of the surface (B)</p> Signup and view all the answers

Which process would be hindered if relatively large oil droplets or dirt particles were present in washing fabrics and materials?

<p>Carrying process through interstices (D)</p> Signup and view all the answers

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