There are _________ stomata per square cm of leaf surface in Tobacco plants?
Correct answer: C. 100,000
- A. 1200
- B. 12000
- C. 100,000
- D. 1000
Explanation
Tobacco leaves may have about 100,000 stomata per square centimetre of leaf surface, allowing substantial exchange of carbon dioxide, oxygen and water vapour. Students may choose 12,000 per square centimetre because that value is a plausible stomatal density for some other plants, but it is too low for the stated textbook value for tobacco.
Last updated
Related questions
All characteristics of Hemoglobin EXCEPT:
An increase in carbon dioxide concentration makes haemoglobin release oxygen more readily. This is known as
Approximately seventy percent of carbon dioxide absorbed by the blood will be transported to the lungs
As the pH of blood decreases, H+ ions increase, which combine with the protein part of hemoglobin to reduce its ability to bind with:
As the pH of the blood decreases, H+ ions increase, which combines with the protein part of hemoglobin, to decrease its ability to bind with: