Questions and Answers
Which best explains the role of plant pigments in photosynthesis?
absorbs light energy
A new plant species has a unique photosynthetic pigment. The leaves of this plant appear to be blue-green. What wavelengths of visible light does this pigment reflect?
green and blue
Among the different forms of electromagnetic radiation emitted by the sun, which form is absorbed by plants for photosynthesis?
visible light
Which of the following statements about chlorophyll is correct?
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What is the main role of the pigment molecules?
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The rate of photosynthesis is much greater in the green than red light spectrum.
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The process of photosynthesis requires the starting materials?
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Green and yellow wavelengths of light are useless to most plants.
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When something appears blue, it is absorbing all colors except?
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Molecules that absorb light energy are called?
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Match each pigment with its color.
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What is photosynthesis? (Check all that apply)
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Study Notes
Role of Plant Pigments
- Plant pigments absorb light energy essential for photosynthesis.
- The main pigment involved is chlorophyll, which primarily reflects green light.
Unique Pigments
- A new blue-green plant species reflects green and blue wavelengths.
- Reflective properties of pigments determine perceived color.
Electromagnetic Radiation
- Visible light is the primary form of electromagnetic radiation absorbed by plants during photosynthesis.
Chlorophyll Characteristics
- Chlorophyll reflects light mainly in the green spectrum, influencing plant color.
Function of Pigment Molecules
- Pigment molecules absorb photons and channel light energy to the reaction center chlorophyll for photosynthetic processes.
Rate of Photosynthesis
- Contrary to some beliefs, the photosynthesis rate is higher in red light than in green light.
Photosynthesis Requirements
- Essential starting materials for photosynthesis include carbon dioxide (CO2) and water (H2O).
Light Wavelength Utility
- Most plants find green and yellow wavelengths ineffective for photosynthesis.
Color Perception
- An object that appears blue absorbs all other colors except blue, which it reflects.
Definition of Pigments
- Molecules that absorb light energy are classified as pigments.
Photosynthesis Overview
- Defined as the conversion of sunlight energy into chemical energy.
- Involves plants, certain bacteria, and some protists using sunlight to produce sugar.
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Description
Test your understanding of the role of plant pigments in photosynthesis with this quiz. Explore how different pigments absorb and reflect light and their impact on plant biology. Challenge your knowledge with questions on electromagnetic radiation as well.
