As an Amazon Associate I earn from qualifying purchases.

Action spectrum Definition and Explanation PDF | Download eBooks

Learn Action spectrum definition in biology with explanation to study “What is Action spectrum”. Study action spectrum explanation with biology terms to review biology course for online degree programs.

Action spectrum Definition:

  • A graph called an action spectrum depicts the relative effectiveness of different wavelengths of radiation in driving a particular process, such as photosynthesis.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson

Action spectrum Explanation:

An action spectrum is a graph of the rate of a physiological activity plotted against wavelength of light. It shows which wavelength of light is most effectively used in a specific chemical reaction. Some reactants are able to use specific wavelengths of light more effectively to complete their reactions. For example, chlorophyll is much more efficient at using the red and blue regions than the green region of the light spectrum to carry out photosynthesis. Therefore, the action spectrum graph would show spikes above the wavelengths representing the colors red and blue.

Keep Learning Biology Explanations

What is Etiolation?

Etiolation is a process in flowering plants grown in partial or complete absence of light. It is characterized by long, ...

What is Ocean acidification?

When oceans uptake the carbon dioxide from air, the pH of the ocean decreases. This has resulted in ongoing acidification ...

What are Facultative anaerobes?

A facultative anaerobe is an organism that makes ATP by aerobic respiration if oxygen is present, but is capable of ...

What is Indeterminate growth?

Indeterminate growth is growth that is not terminated in contrast to determinate growth that stops once a genetically pre-determined structure ...

What is Concentration gradient?

A concentration gradient occurs where the concentration of any particles changes over a certain distance. For example if the concentration ...

What are Salivary glands?

The salivary glands in mammals are exocrine glands that produce saliva through a system of ducts. Humans have three paired ...