Parathormone Function and Regulation Quiz
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Questions and Answers

Why do roots usually grow underground?

  • To absorb sunlight
  • To regulate seed germination
  • To move toward the source of water (correct)
  • To produce hormones

Which of the following is a role of plant hormones?

  • Promoting abscission
  • Stimulating cell division
  • Initiating fruit ripening
  • Regulating photosynthesis (correct)

What is the main function of florigen in plants?

  • Initiating seed germination
  • Promoting flowering (correct)
  • Causing abscission of leaves
  • Regulating root development

What is the function of dormin (abcisin II) in plants?

<p>Promoting the dormancy of buds (A)</p> Signup and view all the answers

What does thiamin (vitamin B1) do for plant roots?

<p>Is required for normal root growth (B)</p> Signup and view all the answers

What is the role of traumatic acid in plants?

<p>Stimulates cell division (D)</p> Signup and view all the answers

What is the main difficulty associated with plant photoperiodism?

<p>Sensitivity to day and night conditions (A)</p> Signup and view all the answers

'Like animals, plants produce which organic substances?'

<p>'Chemical messengers' (D)</p> Signup and view all the answers

'What do plant hormones play an important role in?'

<p>'Plant defense against microorganisms' (B)</p> Signup and view all the answers

Why do roots grow underground?

<p>To move toward the source of water (A)</p> Signup and view all the answers

What is the main role of plant hormones in plants?

<p>Regulate plant defense (D)</p> Signup and view all the answers

Which hormone is needed for flowering to occur in plants?

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

What is the function of traumatic acid in plants?

<p>Facilitate cell division and wound healing (D)</p> Signup and view all the answers

What is the difficulty associated with plant photoperiodism?

<p>Sensitivity to day and night cycles (A)</p> Signup and view all the answers

Which hormone promotes dormancy of buds and abscission of leaves?

<p>Dormin (abcisin II) (C)</p> Signup and view all the answers

Which organic substances do plants produce?

<p>Vitamins and hormones (C)</p> Signup and view all the answers

What is the role of thiamin (vitamin B1) in plant growth?

<p>Supporting normal flowering (B)</p> Signup and view all the answers

What do plant hormones regulate in plants?

<p>Cell division and wound healing (D)</p> Signup and view all the answers

What is the purpose of florigen in plants?

<p>Inducing flowering (A)</p> Signup and view all the answers

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