Cellular respiration produces energy but varys as to how much is produced depending on the presence of a sufficient amount of oxygen.
The role of enzymes in a chemical reaction is to : Lower the activation energy while increasing the rate of reaction
The graph shown on the left is an uncatalyzed chemical reaction while the graph on the right is a catalyzed chemical reaction.
Catalyzed chemical reactions have lower activation energy and a faster rate of reaction while uncatalyzed chemical reaction has a higher activation energy and a slower reaction rate. because catalyst increases the rate of a chemical reaction by lowering its activation energy.
Hence we can conclude that The role of enzymes in a chemical reaction is to : Lower the activation energy while increasing the rate of reaction
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Solution:
if a human individual were heterozygous for 23 genes on 23 different chromosomes the following gametic combination is possible:
With respect to chromosome is 1 then, the individual can produce 2 kinds of gametes. With respect to chromosome number 2, also 2 kinds. So, the equation is:
Number of different gametes = 2^n where n is the number of chromosomes. So,
2^23 = 8.4X10^6 different gametes.
The cell membrane functions as a selective barrier. We call these kind of membranes as differentially permeable or semi permeable membrane. It can decide what substances can pass in and out. Therefore it can surround the cytoplasm (which is the inside of a cell) to separate the cell's content from the surroundings.