Answer:
Three different ways in which antiretroviral drugs can prevent the formation of new viruses are:
- Inhibiting the reverse transcriptase enzyme in both nucleoside analogues and non-nucleoside analogues.
- Enzymatic inhibition of integrase enzymes.
- Inhibiting entry by antagonizing CCR5 co-receptors.
Explanation:
Antiretroviral drugs are those used for the treatment of human immunodeficiency virus (HIV) infection, making the effect of the virus on the host cell is less and preventing the development of AIDS.
This type of drug has been classified, according to their mechanism of action, being grouped into several families of drugs. Three different ways by which antiretroviral drugs can prevent the formation of virus are:
- <em><u>Inhibition of reverse transcriptase enzyme</u></em><em>: this enzyme is a DNA polymerase capable of forming single strand viral RNA by a process that is reverse to normal DNA to RNA transcription. Its inhibition prevents the formation of viral particles in the host cell. They are divided into nucleoside analogs and non-nucleoside analogs.</em>
- <em><u>Enzymatic Inhibition of Integrase enzymes</u></em><em>: this type of enzyme is contained in the virus, and is capable of causing a retrotranscribed DNA to integrate into the host cell's DNA so that viral replication occurs. Its inhibition prevents the replication process.</em>
- <em><u>Entry inhibitors or antagonists CCR5 co-receptors</u></em><em>: CCr5 is a membrane protein, found on the surface of CD4 T lymphocytes, which facilitates the entry of the virus into the cell. The drug acts as a competitive inhibitor of the viral particle, preventing the entry and infection of the host cell.</em>
The most effective treatments against HIV infection involve the use of two or more types of antiretroviral drugs.
Answer: In a classroom, when students are assigned to an expert group and then go back to another group to explain what they have learned, it is called jigsaw classroom
Explanation:
Jigsaw classroom is a method in which students are dependent on each other to understand the concepts. It is a very effective class activity that allows students to interact with one another and not only promotes better learning but also motivates the student. Moreover, the students learn to cooperate with one another and share responsibility.
Answer:
No, without a proper nutrition, your body won't receive the nutrients and vitamins that helps it stay fit and eventually lose weight. For example, if your were out and worked out for 1 hour cardio, you would lose a couple pounds. But, if then you went home and ate a greasy burger or microwaved meal, you pretty much gain all of the weight back and probably even more. However, if you ate a healthy and nutritious lunch, it would probably give you more energy, improve your diet, and sustain your metabolism. To lose weight in a healthy way, there must be a balance in your diet and physical activity.
Explanation:
<span>Answer D
Since the gym is left unused for years, before Darell starts his training, he should have checked for the integrity of the equipment's. Putting the equipment's idle for years would have made it to rust and loosening to joints.</span>
