AP BIOLOGY

LABORATORY REVIEW

TRANSPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Chlorophyll captures energy from sunlight during photosynthesis. Energy is captured from all of the colors of visible light except one. Which color of light is not captured?
A
blue
B
violet
C
green
D
red
Explanation: 

Detailed explanation-1: -The color of the pigment comes from the wavelengths of light that are reflected, or in other words, those wavelengths not absorbed. Chlorophyll, the green pigment common to all photosynthetic cells, absorbs all wavelengths of visible light except green, which it reflects.

Detailed explanation-2: -hello!! Chlorophylls absorb light most strongly in the blue portion of the electromagnetic spectrum as well as the red portion. Conversely, it is a poor absorber of green and near-green portions of the spectrum, which it reflects, producing the green color of chlorophyll-containing tissues.

Detailed explanation-3: -Chlorophyll a absorbs violet and orange light the most. Chlorophyll b absorbs mostly blue and yellow light. They both also absorb light of other wavelengths with less intensity.

Detailed explanation-4: -Chlorophyll’s job in a plant is to absorb light-usually sunlight. The energy absorbed from light is transferred to two kinds of energy-storing molecules. Through photosynthesis, the plant uses the stored energy to convert carbon dioxide (absorbed from the air) and water into glucose, a type of sugar.

Detailed explanation-5: -The chemical workhorse of this process is chlorophyll, which comes in two common forms: chlorophyll “a, ” which absorbs energetic violet and orange light and reflects green light back into our eyes, causing leaves to look so verdant, and chlorophyll “b, ” which absorbs blue light and ends up looking more yellow.

There is 1 question to complete.