35 results found

Search Results for: wavelength

Wavelength

wavelength (Science: radiobiology) The length of a single cycle of a wave, usually measured from crest-to-crest. For... Read More

Comparing the rate of photosynthesis with different wavelengths of light

Comparing the rate of photosynthesis with different wavelengths of light By Juvelle Taylor Article submitted on October... Read More

Light-dependent reaction

Many organisms, such as green plants, convert light energy into chemical energy through the mechanism of photosynthesis. In... Read More

Chlorophyll

Why are most plants green? Have you ever had the same question? Perhaps, you’ve been told that the plants are green... Read More

Visible light

Definition noun The electromagnetic radiation with wavelengths between 400 nm and 750 nm and can produce a visual... Read More

Ultraviolet radiation

Definition noun A form of electromagnetic radiation emitting ultraviolet rays Supplement The electromagnetic radiation is... Read More

Electromagnetic spectrum

Definition noun The spectrum of all types of electromagnetic radiation Supplement The electromagnetic spectrum includes... Read More

Electromagnetic radiation

Definition noun The radiation that consists of associated, interacting electric and magnetic field waves traveling at the... Read More

Sunlight

Definition noun The electromagnetic radiation of the sun that reaches the earth, particularly infrared, visible light, and... Read More

X-ray

Definition noun, plural: X-rays (1) A ray characterized generally by its wavelength ranging from 0.01 to 10 nm, and... Read More

Light

Definition noun (1) (physics) The electromagnetic radiation of any wavelength, or sometimes only referring to a range of... Read More

Microwave

Definition noun A form of electromagnetic radiation that is generally characterized by wavelengths ranging from one meter to... Read More

Beer-Lambert law

Definition noun The principal law in spectrometry in which it states that the absorbance at a given wavelength of light is... Read More

Mutagen

Mutagen Definition What is a mutagen? A mutagen is a substance or agent that causes DNA impairment that results in the... Read More

Infrared

Definition noun A form of electromagnetic radiation with wavelengths ranging between 770 nm and 1000 nm Supplement The... Read More

Gamma ray

Definition noun, plural: gamma rays Very powerful and penetrating, high-energy electromagnetic radiation of shorter... Read More

Photon

Definition noun, plural: photons (physics) A quantum unit of light energy or electromagnetic radiation Supplement A photon... Read More

Ultraviolet ray

Definition noun, plural: ultraviolet rays A ray characterized generally by a wavelength between 10 nm to about 400... Read More

Fluorescence

Definition noun The absorption and the immediate re-emission of light or photon, which has longer wavelength when re-emitted... Read More

Light energy

Definition noun A form of energy consisting of particle-like photons with wavelike properties, and in which affects the... Read More

P680

Definition noun The reaction center chlorophyll (or the primary electron donor) of photosystem II that is most reactive and... Read More

Molar extinction coefficient

Definition noun (spectrophotometry) The measure of how strongly a substance absorbs light at a particular wavelength, and is... Read More

Chlorophyll a

Definition noun A type of chlorophyll that is most common and predominant in all oxygen-evolving photosynthetic organisms... Read More

Absorption Spectrum

The spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain... Read More

Absorbance

Definition noun (analytical chemistry) A logarithmic measure of the amount of light absorbed (at particular wavelength) as... Read More

Depth of field

Depth of field (Science: microscopy) The depth or thickness of the object space that is simultaneously in acceptable... Read More

Bioluminescence

Definition noun The production and emission of light by an organism; the capability of an organism to produce and emit light... Read More

Photoperiodism

photoperiodism (Science: biology) Events triggered by duration of illumination or pattern of light/dark cycles: often the... Read More

Numerical aperture

numerical aperture For a lens the resolving power depends upon the wavelength of light being used and inversely upon the... Read More

Optical density

Definition noun (1) The measure of transmittance of an optical medium for a given wavelength. The higher the OD the lower... Read More

Monochromatic

monochromatic (Science: microscopy) All objects in a group (electrons, light, x-rays etc.) have the same energy or... Read More

Biophoton

Definition noun, plural: biophotons A low-energy photon that is released by a biological system Supplement A photon is the... Read More

Plant Metabolism

Introduction Plants are responsible for incredible feats of molecular transformation. The processes are always being... Read More

Growth and Plant Hormones

Growth All living organisms begin in the same form: as a single cell. That cell will divide and the resulting cells will... Read More

Lights’ Effect on Growth

Plants are the primary producers of energy in any ecosystem, meaning that they bring in new energy to it which supports... Read More