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Why does the mass of iron go up when left in damp air for a few days?
It forms rust by binding with oxygen. The added weight is the oxygen.
What are the two bonding sites of tRNA on the ribosomes?
tRNA has two binding sites on the ribosome first one is A-site (aninoacyl -tRNA binding site), and second one is P-site (peptidyl-tRNA binding site) and E-site (Exit site)
What is the function of the calcium in the sarcoplasm?
Calcium is released from the sarcoplasm to bind with the troponin which allows the tropomyosin the reveal the binding sites on the actin so the muscle can contract
What is the role of the Myoglobin?
Myoglobin is a protein found in muscle tissue of vertebrates that is iron- and oxygen-binding. It is a primary oxygen-carrying pigment of muscle tissues and is related to hemoglobin, but only found in the bloodstream after a muscle injury.
How many percent of oxygen did you breathe?
You breathe out 16.3% oxygen.
How many binding sites are found on the ribosomes?
The ribosome has three sites for binding. It binds RNA and DNA so that they can be matched to their complementary base pair.
What is the site of oxygen binding on hemoglobin?
You have Iron atoms in hemoglobin. This atom is the binding site for oxygen in case of hemoglobin.
What percentage of oxygen is delivered to tissues at rest in cooperative binding?
72 percent of Oxygen is delivered to tissues at rest in cooperative binding.
Why does the oxygen equilibrium curve of mammalian hemoglobin have a sigmoidal shape?
Because the binding of oxygen to hemoglobin is cooperative, i.e. it exhibits positive cooperativity. This essentially means that the binding of the first molecule of oxygen facilitates the binding of the second, and so on.
What are active and binding sites of proteins?
Enhancers
Why is hemoglobin an effective respiratory pigment?
The Bohr effect and cooperative binding of oxygen to hemoglobin is what makes it an effective carrier of oxygen from the lungs to the peripheral tissues. What is cooperative binding? The first oxygen bind less strongly to oxygen then does the subsequent oxygen molecules (hemoglobin has four binding zones for oxygen). This means that the binding curve is fairly steep. The Bohr effect is a negative effect on binding of oxygen by hemoglobin in the presence of increased pH. Since peripheral tissues release C02 it increases the local pH releasing the oxygen. After the first oxygen is released the remaining oxygen molecules are quickly disassociated from hemoglobin thus delivering the oxygen to the tissue in need of oxygen.
What is the subunit of a ribosome has binding sites for trna?
A site
What muscle proteins help turn muscle contration on and off?
Calcium is responsible for binding to troponin sites which release tropomyosin off the active binding sites on the thin filament.
The large ribosomal unit has binding sites for?
mRNA and tRNA
Complement binding sites are located on?
Fc fragment of antibody
What effects oxygen binding to and dissociation from hemoglobin?
Ph and temperature
What oxygen binding protein found in muscle cells?
Myoglobin
