What would be most likely to happen if some of the proteins in one of the photosystems were to change shape due to a drop in cell ph? a. an increase in sugar production b. a decrease in chlorophyll production c. a decrease in the formation of nadph d. an increase in the formation of nadp+

apex !!

c.a decrease in the formation of nadph .

The right answer is- C. A decrease in the formation of NADPH.

Photosystem II ( P700) and photosystem I ( P680) are associated with the light dependent phase of photosynthesis.

There are several proteins ( such as pheophytin, the first electron acceptor in the light dependent phase) associated with these system and work on optimum pH.

Light dependent phase is the first stage in which chlorophyll absorbs solar energy and convert it into chemical energy (ATP and NADPH).

ATP and NADPH is further utilized in the calvin cycle ( light independent phase, which is the next phase of photosynthesis) in order to synthesize food ( glucose, which is a carbohydrate).  

If some proteins in one of the photosystems undergo change in their shape due to a drop in pH of cell, they will not perform their activity.

Due to this, there will be a decrease in the formation of NADPH ( that is less reduction of NADP due to blockage in the transport of electron).

Thus, option C) is the right answer.

answer: grassland biomes are closer to the equator and receive more rain.

grasslands are biomes that are dominated by grasses rather shrubs and trees. savanna are biomes that exhibit grasses, shrubs and small tree as vegetation. grasslands are located near the equator of the earth. these are found in north america. savanna biomes are found in africa, south america, australia and india. grassland exhibit moderate climatic conditions, it receives   amount of rainfall higher than savanna.   therefore, savanna exhibit dry and hot climatic conditions.

hypoxemia refers to a below usual concentration of oxygen in the blood, mainly in the arteries. hypoxemia is an indication of an issue associated with circulation or breathing and may lead to various symptoms like shortness of breath.  

the condition is identified by determining the level of oxygen in the blood sample obtained from an artery. it can also be predicted by determining the oxygen saturation of the blood with the application of a pulse oximeter.  

the normal arterial oxygen is about 75 to 100 mm hg. the values underneath 60 mm hg is generally considered with the requirement for supplemental oxygen. the normal pulse oximeter readings generally range between 95 to 100 percent. the values under 90 percent are regarded as low.  

in the given case, the oxygen saturation is measured at 93 percent, hence, there is no need to administer oxygen, that is, one should withhold oxygen.