Answer:
Histidine
Explanation:
A heme group is a prosthetic group composed of a protoporphyrin ring and an iron (Fe) atom that binds to oxygen (O2) in hemoglobin and myoglobin. Hemoglobin (Hb) is a protein in red blood cells (erythrocytes) that carries oxygen from the lungs to the tissues, which is composed of four polypeptide chains, each with a heme group. Moreover, myoglobin is a monomeric protein located mainly in the muscles, which contains one heme group, being thus similar to hemoglobin monomers. The proximal and distal are evolutionarily conserved amino acid (histidine) residues whose names (proximal and distal) refer to their position with the iron (Fe) atom in the heme group. The proximal histidine connects the heme group with the proteins (either in monomeric myoglobin or in one subunit of Hb), whereas distal histidine contributes to stabilize these proteins while carrying O2.
Luminance response can be tested with an option(d) I or II i.e, near range photometer or telescope photometer.
The luminous intensity per unit area of light traveling in a specific direction is measured photometrically as luminance. It indicates how much light enters, exits, or is reflected from a specific area and falls within a specified solid angle.
The visual system's ability to function depends heavily on luminance and contrast. Vision is impossible without light (luminance = 0), and without contrast, we are unable to see spatial or temporal patterns. The first stage in seeing, which enables all other visual processes, is the capacity to respond to brightness.
A photometer is a tool used to gauge light's characteristics. A photometer can be used to measure a light source's brightness, color, and flux among other attributes. Photometers gather radiation released by the light source to determine the wavelengths of light and atomic emissions.
The complete question is:
Luminance response can be tested with a(n)_____.
I) near-range photometer
II) telescope photometer
III) illuminance meter
A) I only
B) II only
C) III only
D) I or II
To know more about photometer refer to: brainly.com/question/13961371
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<span>from low concentration to high concentration</span>
Answer:
Centripetal force is perpendicular to the velocity of the satellite.
Explanation:
because there is no friction or wind resistance, the speed of the satellite remains the same
Answer:
Mercuric particles is the right answer
Pseudomonas has a plasmid containing the mer operon that incorporates a quality for mercuric reductase catalyzing mercuric particle to an uncharged type of mercury. The inducer is mercuric particles.
