B) Primary is where there is nothing no rock or soil
The activity of an Enzyme is affected by its environmental
conditions. Changing these alter the rate of reaction caused
by the enzyme. In nature organisms adjust the conditions of their
enzymes to produce an Optimum rate of reaction where necessary
or they may have enzymes which are adapted to function well in
extreme conditions where they live.
Answer:
B. Salinity
Explanation:
Salinity Definition: of, containing, or resembling common table salt; salty or saltlike
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Answer:
A. anaerobic respiration in muscle cells, forming lactic acid
Explanation:
Running marathon is a vigorous exercise, which often leads to excessive use of oxygen in the cells of the athlete. This causes the cells to switch from the aerobic (with oxygen) to the anaerobic (without oxygen) mode of respiration. This anaerobic respiration produces a product called LACTATE OR LACTIC ACID.
The lactic acid becomes excessive and gets stored in the muscle cells of the athlete. This often leads to cramps, muscle pulls etc. during the marathon. Therefore, an individual running a marathon may experience periods of oxygen deprivation that can lead to anaerobic respiration in muscle cells, forming lactic acid.
