Podcast
Questions and Answers
How does the sensitivity of plants to air pollutants typically change as relative humidity increases?
How does the sensitivity of plants to air pollutants typically change as relative humidity increases?
- It increases (correct)
- It fluctuates
- It remains constant
- It decreases
What did MacLean et al. observe about gladiolus plants and fluoride sensitivity with changing relative humidity?
What did MacLean et al. observe about gladiolus plants and fluoride sensitivity with changing relative humidity?
- No correlation between fluoride sensitivity and relative humidity
- Fluoride sensitivity was only observed at low humidity levels
- Fluoride sensitivity increased with increasing relative humidity (correct)
- Fluoride sensitivity decreased with increasing relative humidity
Under what light intensity range did sensitivity of pinto bean and tobacco to ozone exposure increase?
Under what light intensity range did sensitivity of pinto bean and tobacco to ozone exposure increase?
- 3000-4000 fc
- 900-4000 fc (correct)
- 1000-1500 fc
- 500-800 fc
At what light intensity level does full stomatal opening occur in plants?
At what light intensity level does full stomatal opening occur in plants?
What is the general response of plants when exposed to pollutants in the dark?
What is the general response of plants when exposed to pollutants in the dark?
Why are living organisms seldom exposed to a single pollutant according to the text?
Why are living organisms seldom exposed to a single pollutant according to the text?
How do contaminants cause harm among both plants and animals?
How do contaminants cause harm among both plants and animals?
What term is used in human medicine to describe infants or young children who do not gain weight or develop as expected?
What term is used in human medicine to describe infants or young children who do not gain weight or develop as expected?
What is the main impact of contaminant exposure on individual organisms?
What is the main impact of contaminant exposure on individual organisms?
Which term is used to describe the alteration of hormone synthesis or action by contaminants?
Which term is used to describe the alteration of hormone synthesis or action by contaminants?
What is a generalized way that contaminants cause harm among both plants and animals?
What is a generalized way that contaminants cause harm among both plants and animals?
How do investigators determine the impact of contaminants on animals that cannot communicate their feelings?
How do investigators determine the impact of contaminants on animals that cannot communicate their feelings?
What has been shown to decrease the toxic effects of O3, NO2, and certain hydrocarbons in experimental mice?
What has been shown to decrease the toxic effects of O3, NO2, and certain hydrocarbons in experimental mice?
What is the most widely studied factor affecting plant response to air pollutants?
What is the most widely studied factor affecting plant response to air pollutants?
In plants, what is a function of genetic variability that influences their response to air pollutants?
In plants, what is a function of genetic variability that influences their response to air pollutants?
How was the sensitivity to O3 of two onion cultivars shown to be controlled?
How was the sensitivity to O3 of two onion cultivars shown to be controlled?
Which plant species has long been recognized to be extremely sensitive to fluoride?
Which plant species has long been recognized to be extremely sensitive to fluoride?
According to Engle and Gableman (1966), what happened to the stomata of the resistant onion cultivar after exposure to O3?
According to Engle and Gableman (1966), what happened to the stomata of the resistant onion cultivar after exposure to O3?
