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Ingenhousz found that plants produce oxygen bubbles only in the presence of what?
Ingenhousz found that plants produce oxygen bubbles only in the presence of light. This process, known as photosynthesis, takes place in the chloroplasts of plant cells and requires light energy to convert carbon dioxide and water into oxygen and glucose.
Which nutrient requires intrinsic factor for absorption?
Vitamin B12 requires intrinsic factor for absorption in the small intestine. Intrinsic factor is produced by the stomach and binds to vitamin B12 to facilitate its absorption in the ileum. Without intrinsic factor, vitamin B12 absorption is impaired, leading to deficiency.
What Occurs only in the presence of chlorophyll and light?
Photosynthesis occurs only in the presence of chlorophyll and light. This process allows plants to convert light energy into chemical energy in the form of glucose, which is used for growth and development. Chlorophyll, along with other pigments, capture light energy and drive the chemical reactions of photosynthesis.
What type of cell functions does the presence of microvilli typically indicate?
The presence of microvilli typically indicates that the cell is involved in absorption, as microvilli increase the surface area of the cell membrane, allowing for more efficient nutrient absorption. Cells with microvilli are commonly found in tissues involved in absorption, such as the small intestine.
How is bioluminescence and fluorescent differ?
Bioluminescence is the production of light by living organisms through a chemical reaction, usually involving a light-emitting pigment. Fluorescence is the absorption of light energy at one wavelength and its re-emission at a longer wavelength, usually involving a fluorescent pigment. Bioluminescence is independent of external light sources, while fluorescence requires an external light source to excite the material.
What does light absorption require the presence of?
Light absorption requires the presence of a material that is capable of absorbing light energy. This material typically contains atoms or molecules that can undergo a transition of electron energy levels when exposed to light, resulting in the absorption of photons.
What is uv absorption?
UV absorption is the process by which molecules absorb ultraviolet (UV) light and transition to higher energy states. This absorption of UV light causes electronic transitions in the molecules, leading to distinct absorption spectra that can be used to identify and quantify the presence of specific compounds. UV absorption spectroscopy is a common technique used in analytical chemistry and biochemistry for characterizing compounds based on their UV absorption properties.
Why is copperII sulphate blue in color?
Copper(II) sulfate is blue in color due to the presence of copper ions (Cu2+) in the compound. This blue color arises because of the absorption of certain wavelengths of light in the visible spectrum by the copper ions in the compound, leading to the perception of blue.
Ingenhousz found that plants produce oxygen bubbles only in the presence of what?
Ingenhousz found that plants produce oxygen bubbles only in the presence of light. This process, known as photosynthesis, takes place in the chloroplasts of plant cells and requires light energy to convert carbon dioxide and water into oxygen and glucose.
What cellular process process requires the presence of chlorophyll?
Photosynthesis requires the presence of chlorophyll.
Do pigments affect the absorption of light in plants?
Yes they do affect the absorption of light in plants.
Does glow in the dark work with black light?
No, glow in the dark requires the absorption of light to emit a glow in darkness. Black lights emit ultraviolet (UV) light, which typically does not charge glow in the dark items like visible light does.
What is the use of Atomic Absorption in Forensic?
Atomic absorption is used in forensics to analyze trace elements in samples such as blood, hair, or soil. By measuring the absorption of specific wavelengths of light by the atoms in the sample, atomic absorption spectroscopy can determine the presence and concentration of elements like arsenic, lead, or mercury, which can be crucial in solving criminal cases.
Is absorbing light a chemical reaction?
Light absorption is a physical process; but the effects of the absorption may be chemical.
What is the first process in the light dependent reactions of photosynthesis?
Excitation of electrons in photosystem II.
What would happen if the light from a star passes through a cool cloud of sodium gas?
The cool cloud of sodium gas would absorb specific wavelengths of light known as the sodium D lines. This absorption pattern would result in dark absorption lines superimposed on the star's spectrum, allowing astronomers to identify the presence of sodium in the gas cloud.
What is highest absorption to lowest. Highest Light Absorption?
The highest absorption in the electromagnetic spectrum includes gamma rays, X-rays, and ultraviolet light. Next comes visible light, followed by infrared, microwaves, and radio waves with the lowest absorption.
