You can figure this out. Determine the molecular weight of glucose- that is the weight in grams of 6.02x10^23 molecules (one mole of glucose). Then weigh one sugar cube- that is the weight of your unknown number of molecules. Divide your sugar cube weight by the molecular weight- that gives you the percentage of a mole that your sugar cube contains.
HIV is the cause of the spectrum of disease known as HIV/AIDS. HIV is a retrovirus that primarily infects components of the human immune system such as CD4 + T cells, macrophages and dendritic cells. It directly and indirectly destroys CD4 + T cells.
A single HIV particle is called a virion. Its core, called the capsid, contains two single strands of HIV RNA. The core is surrounded by a protective lipid bilayer and this shell is called the viral envelope. Enmeshed in the viral envelope is a complex HIV protein called env.Two glycoproteins make up env and these protrude from the virion. The cap of the protein is called gp120 and the stem is gp41. For HIV to enter a host cell, it must first use gp120 to attach to a CD4 receptor.-tropic and T-tropic strains of HIV coexist in the body. At some point in infection, gp120 is able to attach to either CCR5 or CXCR4. This is called dual tropic virus or R5X4 HIV. Virus that can utilise the CXCR4 receptor on both macrophages and T-cells is also termed dual-tropic X4 HIV.