31. Most plant hormones act as promoters of one response or another. Which type

Question

31. Most plant hormones act as promoters of one response or another. Which type of hormone is unusual in that it generally acts as a growth inhibitor?        auxins
       abscisic acid
       gibberellins
       cytokinins Question 32.32. The first human medicines from plants probably resulted from _____.        early humans watching what plants were eaten by wild animals
       experiments by chemists in 1800's
       chemical analysis of commonly grown plants
       trial and error studies in the 1700's Question 33.33. Plants resemble humans in that they also produce hormones for growth and development and cell differentiation.        True
       False Question 34.34. What is the function that phytochrome is known to perform in the photoperiod-related control of flowering?        sensing sunrise and sunset
       inducing flowers to form
       none of the choices are correct
       determining night length Question 35.35. Plant circadian rhythms (biological clocks) are regulated by thigmotropsim.        True
       False 31. Most plant hormones act as promoters of one response or another. Which type of hormone is unusual in that it generally acts as a growth inhibitor?        auxins
       abscisic acid
       gibberellins
       cytokinins

Explanation / Answer

Q31. abscisic acid

The top two plant growth inhibitors are: (1) Abscisic Acid and (2) Ethylene.

Q32. early humans watching what plants were eaten by wild animals

Q33. True

Plants produce hormones for growth and development and cell differentiation. Auxins and cytokinins are examples

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