Answer:
The normal role of this control element can be that of a negative modulator or regulator
Explanation:
For example, the lactose operon in the bacteria <em>Escherichia coli</em> is negatively regulated. In lactose absence a represor protein is produced, which inserts in the DNA operator site blocking transcription of structural genes. if for example a mutation affects the synthesis of this repressor, expression of structural genes will increase with no regulation.
A mutation in the DNA operator site that avoids insertion of the repressor, too.
A mutation in the gene that codes for the repressor, will also do the job
Answer:
There are four fates for acetyl CoA in the human body. Here are all the fates of acetyl CoA:
Explanation:
1. Acetyl CoA in the mitochondria can be used in the electron transport chain to form CO₂ and water.
2. Acetyl CoA can synthesize ketonebodies which are oxidized for energy in the liver.
3. Acetyl CoA outside of the mitochondria and inside the cytosol can also be used to make fatty acids from glucose.
4. Acetyl CoA in the cytoplasm will also go on to synthesize cholesterol.
Altogether, the functions of acetyl CoA in the body is diverse and multi functional. The cells in other parts of the body do most of these functions but the ketone bodies formed in the liver creates a large amount of ketone bodies that are transported elsewhere.
Answer:
Explanation:
because a proton gradient is necessary over the inner mitochondrial membrane during oxidative phosphorylation for ATP production, ATP production will decease if gramicidin is added because the inner mitochondrial membrane will become permeable and the protons will be able to move in and out, there will be no electrochemical gradient left to drive ATP production. Electron transport will not be altered because it is dependent on the availability of NADH and FADH2. proton pumping also will remain the same but it will be useless because the protons can go back and forth
Answer:
Acidosis will interfere more.
Explanation:
The natural ph in jejunum is usual neutral or slightly alkaline so the antibody absorption will not be possible if the medium isn't alkaline.
The thing that would mostly make the results of the experiment invalid would be the students themselves. No one is built the same, and the exact same food can have very different effects on different people.
