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[DOC File]AP BIOLOGY OUTLINE FOR PHOTOSYNTHESIS:
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c. Absorption spectra and action spectra. d. Nature and interrelation of light and dark reactions. e. Comparison of C3, C4, and CAM pathways. f. Comparison between respiration and photosynthesis. ESSAY QUESTIONS: 1962: Discuss two experiments in which the use of isotopes as tracers has contributed . to present knowledge of the photosynthetic ...
action and absorption spectrum photosynthesis

[DOCX File]Jeffco Public Schools
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An action spectrum shows the relative rates of photosynthesis under different wavelengths of light. Label the absorption and action spectra on this graph. Why are these lines different? The top graph is the absorption graph of chlorophyll a, chlorphyll b and the carotenoids. It shows the wavelengths of light that are absorbed by each individual ...
action spectrum of photosynthesis

[DOC File]ANSWERS 1 (68 Marks)
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Why is the action spectrum for photosynthesis similar to the absorption spectra of photosynthetic pigments? A. Photosynthetic pigments have the same optimum temperature as the enzymes used in photosynthesis. B. Plants absorb the same photosynthetic pigments for use in photosynthesis. C.
absorption spectrum vs action spectrum

[DOC File]TAP501-0: Spectra and energy levels - Institute of Physics
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Emission and absorption spectra. The spectrum of a gas gives a kind of 'finger print' of an atom. You could relate this to the simple flame tests that students will have used at pre-16 level. Astronomers examine the light of distant stars and galaxies to discover their composition (and a lot else). ... This simple model of the action of an LED ...
define absorption spectrum in photosynthesis

[DOC File]Chapter 10: Photosynthesis - Auburn University
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action spectrum. the action spectrum looks similar to the absorption spectrum of chl a, but is augmented by the absorption spectrum of the accessory pigments. blue and red light are most effective for photosynthesis. action spectra can vary depending on species. photosynthetic prokaryotes have plasma membrane folds that act like thylakoid membranes
action spectrum graph

Optical absorption spectroscopic study of electronic Fe-Ti ...
Optical absorption spectra were measured at room temperature in the range 350-1800 nm (ca. 28570-5555 cm-1) with a single-beam microspectrophotometer constructed from a SpectraPro-275 triple ...
absorbance spectrum graph

[DOC File]Lakewood High School
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The absorption spectrum shows the wavelength of light absorbed by different pigments. The action spectra shows the rate of photosynthesis at different wavelength of light. The action spectra takes into account ALL the pigments in the plant. The absorption spectra is for each individual pigment. 4. Describe the components of a photosystem.
absorption spectrum graph

[DOC File]Absorption Spectrum of Chlorophyll
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The absorption spectra of chlorophyll from spinach leaves and okra pods were determined along with the relative amounts of chlorophyll a and chlorophyll b in each of the two plants. The chlorophyll was extracted using 100% acetone and the absorption spectrum was determined over a range of 400-700 nm using a Spectronic 20D spectrophotometer.
what is an action spectrum

[DOC File]8
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Action spectra plot the effectiveness of the varying wavelengths of light. Engelmann in 1883 demonstrated the spectra with Spirogyra. Since the action spectra matched the absorption spectra of chlorophyll, he deduced that chlorophyll was responsible for photosynthesis. Carotenoids widen the action spectrum for photosynthesis
action and absorption spectrum photosynthesis

[DOCX File]Loudoun County Public Schools / Overview
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Investigation: Absorption Spectrum & Action Spectrum. Introduction: Light is a form of . electromagnetic (EM) radiation, which travels in waves. More specifically, light is a discrete packet of EM radiation called a . photon. All types of electromagnetic radiation travel in the form of waves at the speed of about 300,000 km per second – the ...
action spectrum of photosynthesis

Absorption and action spectra