Answer:
As the level of carbon dioxide in the blood increases, more H+ is produced and the pH decreases. This increase in carbon dioxide and subsequent decrease in pH reduce the affinity of hemoglobin for oxygen. The oxygen dissociates from the Hb molecule, shifting the oxygen dissociation curve to the right.
Answer:
In models describing the structure of the plant cell wall, the polysaccharide cellulose,which only contains glucose,forms cable-like structures which are associated with interspersed hemicellulose polysaccharides which consist of glucose chains with xylose side groups. The pectin polysaccharides, containing ironic acids, have a more kinked ribbon-like structure and serve to link the cellulose polysaccharides together by providing a gel-like matrix,completing the cell wall structure.
Explanation:
Chemical reaction: 2A + B → unkwown product.
Molecularity<span> is the number of molecules that come together to react in an </span>elementary (single-step) reaction and Molecularity<span> in </span>chemistry<span> is the number of molecules that come together to react in an </span>elementary (single-step) reaction <span>and is equal to the sum of </span>stoichiometric coefficients<span> of reactants in this elementary reaction.
</span>This reaction is <span>termolecular </span><span>(or trimolecular) because three molecules react (two A and one B).</span>
Answer: -
The next low tide occur at 12 noon, because the coastline will turn 90 degrees from the moon.
Explanation: -
Time taken for the earth to rotate = 24 hours.
Each day there are two high tides and low tides.
Thus the duration between two high tides is 12 hours and between 1 high tide and 1 low tide is 6 hours.
Thus the time of next low tide is 6 am + 6 hours = 12 noon.
Now in 24 hours the coastline turns 360 degrees.
In 6 hours it will travel (360 x 6) / 24 =90 degrees.
Thus the next low tide occur at 12 noon, because the coastline will turn 90 degrees from the moon.
