ACT Science Practice Question #1827 (Hard (500)) | Test Citadel
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ACT Science Difficulty: Hard (500)

Digital ACT Science Practice Question #1827

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Based on Table 25, which wavelength is absorbed most strongly by Chlorophyll b? Experiment Context (Spectrophotometric Absorption of Photosynthetic Pigments): Biochemists purified chlorophyll a and chlorophyll b and recorded optical absorbance across the visible light spectrum (400 to 700 nm): Table 25: - 430 nm (Violet): Chlorophyll a Absorbance = 0.95; Chlorophyll b Absorbance = 0.35 - 455 nm (Blue): Chlorophyll a Absorbance = 0.30; Chlorophyll b Absorbance = 0.98 - 550 nm (Green): Chlorophyll a Absorbance = 0.04; Chlorophyll b Absorbance = 0.05 - 640 nm (Orange-Red): Chlorophyll a Absorbance = 0.22; Chlorophyll b Absorbance = 0.75 - 660 nm (Pure Red): Chlorophyll a Absorbance = 0.88; Chlorophyll b Absorbance = 0.20
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Find highest value in Chlorophyll b column: 0.98 at 455 nm.

Masterclass Solution & Distractor Trap Analysis

Table shows peak absorbance for Chlorophyll b is 0.98 at 455 nm....

Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...

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