Answer:
The correct answer is option a. "oxygen".
Explanation:
Fermentation is the biological process behind the creation of beer. Saccharomyces cerevisia, the yeast used for beer's production can perform both aerobic cellular respiration and fermentation. In the presence of oxygen, Saccharomyces cerevisia would undergo aerobic cellular respiration and will broke glucose to carbon dioxide and will produce energy. In the absence of oxygen, the yeast would undergo fermentation and the glucose will be converted into ethanol (alcohol). If after the brewing procedure the alcohol content is almost zero, it is possible that oxygen is present in the fermentation reaction apparatus. Under the presence of oxygen Saccharomyces cerevisia will undergo aerobic cellular respiration not fermentation.
The water potential of the cell would be -7 bar and thus, water will move from the cell to the surrounding solution.
Recall that:
Water potential = pressure potential + solute potential
For the plant cell, solute potential = -10, pressure potential = 3
Water potential of the cell = 3-10
= -7 bar
The water potential of the cell is -7 bar while that of the surrounding solution is -10 bar. Thus, the cell has a higher water potential than the surrounding solution.
Recall that water usually moves from the region of high to the region of low water potential. Therefore, water will move from the cell to the surrounding solution.
More on water potential can be found here: brainly.com/question/23855783
In the first stage of meiosis, prophase I, tetrads are formed.
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