Given the following biochemical pathway, in which the letters represent chemical substances in the pathway and numbers represent
enzymes that catalyze the reactions represented by the arrows. Additionally, substance D is required for the proper growth of a cell: A -- 1 --> B -- 2 --> C -- 3 --> D If a cell has a mutation that prevents enzyme
If one of the crucial enzyme say B is mutated in the process of normal product formation, then the reaction will not proceed further from that point and accumulation of an intermediate product in the cell takes place. The mutation in the enzyme could be environmental or genetic but it will surely alter the enzyme functioning. In the end, the damage malfunctioning cell will be removed using the process of apoptosis.
They are semi-permeable, which means that some molecules can diffuse across the lipid bilayer but others cannot. Small hydrophobic molecules and gases like oxygen and carbon dioxide cross membranes rapidly.
The water would get warmer and would not sink to the bottom, and therefore disrupt the worldwide currents
Explanation:
the warmer water is less dense than the colder water and would not sink, which would interrupt the natural currents with extra external heat added by global warming
