Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892



Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892
Textbook Problem

Discuss Concepts Concerns about global climate change and the greenhouse effect center on rising levels of greenhouse gases, including atmospheric carbon dioxide. Plants use CO for 2 photosynthesis, and laboratory studies suggest that increasedCO2 levels could cause a rise in photosynthetic activity. However, as one environmentalist noted, “What plants do in environmental chambers may not happen in nature, where there are many other interacting variables.” Strictly from the standpoint of physiological effects, what are some possible ramifications of a rapid doubling of atmospheric CO2 on plants in temperate environments? In arid environments?

Summary Introduction

To review:

The ramifications of the doubled atmospheric carbon dioxide on plants.


The increase in the levels of the greenhouse gases such as carbon dioxide is called greenhouse effect. Due to this effect, the radiations from the sun are trapped in the atmosphere and lead to the increase in the temperature of the earth and it is known as the global warming. The causes of the increased emission of greenhouse gases such as carbon dioxide include man-made activities such as deforestation and burning of fossil fuels.


There are various consequences of the doubling of the atmospheric carbon dioxide.

1. The carbon dioxide is the raw chemical, required for photosynthesis, and hence, plants will become more efficient at food production.

2. The chemicals will be produced for defense but it will be not good for the herbivores that consume these plants.

3. Carbon dioxide is more and hence, the stomata opening will be narrower and the transpiration rate will decrease...

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