B,because it seems like the most active answer outta the rest
Answer:
28%
Explanation:
Primero <u>calculamos los mililitros de etanol presentes en la primera solución</u>:
- 200 mL * 70/100 = 140 mL etanol
Para calcular el nuevo porcentaje en volumen, dividimos los mililitros de etanol (<em>que permanecen iguales durante el proceso de dilución</em>) entre el volumen final.
- Volumen final = 200 mL + 300 mL = 500 mL
- % Volumen de Etanol = 140 mL / 500 mL * 100% = 28%
Answer:
IgG, IgM, IgA, IgD and IgE
Explanation:
Classes of immunoglobulins
The five primary classes of immunoglobulins are IgG, IgM, IgA, IgD and IgE. These are distinguished by the type of heavy chain found in the molecule. IgG molecules have heavy chains known as gamma-chains; IgMs have mu-chains; IgAs have alpha-chains; IgEs have epsilon-chains; and IgDs have delta-chains.
Differences in heavy chain polypeptides allow these immunoglobulins to function in different types of immune responses and at particular stages of the immune response. The polypeptide protein sequences responsible for these differences are found primarily in the Fc fragment. While there are five different types of heavy chains, there are only two main types of light chains: kappa (κ) and lambda (λ).
Antibody classes differ in valency as a result of different numbers of Y-like units (monomers) that join to form the complete protein. For example, in humans, functioning IgM antibodies have five Y-shaped units (pentamer) containing a total of 10 light chains, 10 heavy chains and 10 antigen-binding.
Answer:
All are correct
Explanation:
This might be a little deceptive. The question shows H, O and N which would designate ELEMENTS.
However, all of these can also be considered compounds and molecules as well. BUT, they are H₂, O₂ and N₂ when they are molecules and compounds.
So it depends on the whether the question is being literal or not.