Figure 54.5
-Plants never use 100% of the incoming solar radiation for photosynthesis on a yearly basis.What is a reasonable explanation for this?
A)Plants cannot photosynthesize during winter (in cold winter climates).
B)Plants cannot photosynthesize on cloudy days.
C)The pigments that drive photosynthesis respond to only a fraction of the wavelengths available,and plants cannot photosynthesize on cloudy days.
D)The pigments that drive photosynthesis respond to only a fraction of the wavelengths available,and plants cannot photosynthesize during winter (in cold winter climates).
E)The pigments that drive photosynthesis respond to only a fraction of the wavelengths available,and plants cannot photosynthesize during dry periods.

Question

Figure 54.5 
-Plants never use 100% of the incoming solar radiation for photosynthesis on a yearly basis.What is a reasonable explanation for this?
A)Plants cannot photosynthesize during winter (in cold winter climates). 
B)Plants cannot photosynthesize on cloudy days. 
C)The pigments that drive photosynthesis respond to only a fraction of the wavelengths available,and plants cannot photosynthesize on cloudy days. 
D)The pigments that drive photosynthesis respond to only a fraction of the wavelengths available,and plants cannot photosynthesize during winter (in cold winter climates). 
E)The pigments that drive photosynthesis respond to only a fraction of the wavelengths available,and plants cannot photosynthesize during dry periods.

Quizplus · Accepted Answer

The pigments in plants, such as chlorophyll, only absorb specific wavelengths of light, limiting the amount of solar radiation used. Additionally, during dry periods, plants may close their stomata to conserve water, reducing photosynthesis.

Figure 54.5 -Plants Never Use 100% of the Incoming Solar Radiation for Solar