Salivary amylase is an enzyme that breaks down starch. The optimum or best pH for this reaction is 6.7. Which of the following would not have an
effect on a reaction involving this enzyme?
1. maintaining the pH of the reaction at 6.7
2. substrate concentration
3. enzyme concentration
4. decreasing the temperature of the reaction by 5 degrees C
O Enzyme concentration
O Maintaining the pH of the reaction at 6.7.
O Decreased temperature of reaction temperature by 10 degrees C.
O Amount of substrate

The answer would be b. it is a learned trait

answer: - b cells

explanation: -

there are many types of white blood cells present in our body. one such class of white blood cells are the lymphocytes. the b cells belong to the lymphocyte class of wbcs. the b cells perform their action against the pathogen by producing specialised proteins called as antibodies. these antibodies are produced as and when the b cells encounter pathogens in response to the antigens present on the surface of the pathogen. these antibodies bind to the antigens present on the pathogen and then, target them for destruction by other cells of the immune system.

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.