How does HIV enter the cell?
What will be an ideal response?
Answer:
1. activate GP41 and GP120 in trimeric form
2. GP120 interacts with CD4 HIV --> conformation change
3. GP120 binds to coreceptor (CCR5 and CXCR4)
4. GP120 has variable loops (neutralizing epitope) and GP41 has ?-helix (with PE and hydrophobicity)
5. GP41 separates from GP120 and goes into the host cell's membrane via PE
6. PE allows for fusion between viral envelope and host cell's membrane
7. capsid falls into cytoplasm
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The ________ is the minimum energy required before two molecules can be successful in producing a reaction.
Fill in the blank(s) with the appropriate word(s).
Chromosomes are duplicated during which phase of the cell cycle?
a. M b. D c. G1 d. G2 e. S
An organism can exchange matter and energy with its surroundings. Thus, any change in an organism's energy content
must be balanced by a corresponding change in the energy content of the surroundings. As such, an organism is referred to as a(n): a. closed system. b. open system. c. dynamic system. d. potential system. e. thermally reactive system
Identify substances that can be transferred FROM the blood TO the interstitial tissues
What will be an ideal response?