lecture 5
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Questions and Answers

Which component of starch is an unbranched chain of several hundred to a few thousand glucose units?

  • Diosgenin
  • Sapogenins
  • Amylopectin
  • Amylose (correct)

From which plant is the traditional Hawaiian dish poi prepared?

  • Tapioca
  • Yams
  • Cassava
  • Taro (correct)

What is the main nutrient found in yams?

  • Protein
  • Sapogenins
  • Starch (correct)
  • Steroids

Where have yams been cultivated for over 5000 years?

<p>Tropical Africa (A)</p> Signup and view all the answers

Why might the dough rise and produce a lighter, tastier bread if set aside before baking?

<p>Accidental introduction of yeast from the air (D)</p> Signup and view all the answers

What is a possible reason for the domestication of the cat in China 5300 years ago?

<p>Protecting stored grain from rodents (C)</p> Signup and view all the answers

Why is rice considered a staple food for over 2 billion people, mainly in Asia?

<p>Cultivation dating back thousands of years (A)</p> Signup and view all the answers

What is a significant characteristic of Oryza sativa, the main cultivated rice in most areas of the world?

<p>Loss of predator avoidance (B)</p> Signup and view all the answers

What is the most widely grown type of corn in the United States?

<p>Dent corn (C)</p> Signup and view all the answers

How are the grains (kernels) of corn different from other cereals?

<p>They are covered with husks (A)</p> Signup and view all the answers

What is the primary use of corn according to the text?

<p>Mainly used for animal feed (A)</p> Signup and view all the answers

Which component of starch is more prominent in hard starch compared to soft starch?

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

What adaptation of the rice plant allows it to survive in flooded or waterlogged soils?

<p>Air chambers in the stem (C)</p> Signup and view all the answers

In which type of fields is rice typically cultivated?

<p>Flooded fields (D)</p> Signup and view all the answers

What is the role of Azolla in rice paddies?

<p>A nitrogen-fixing fern that helps provide nitrogen to the rice plants (C)</p> Signup and view all the answers

Where were doglike animals found 30,000 years ago, according to the text?

<p>Europe and Siberia (C)</p> Signup and view all the answers
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