Answer:
Vaccines prevent diseases, its just proven. Most Anti Vaccers end up getting Measles, etc. But people with vaccines usually dont.
Explanation:
we are living proof to be honest, i got the chicken pox vaccine and never had it once in my life. Same thing with many other diseases we get vaccinated for.
Hydrophobic amino acids have little to no polarity. This means that they cannot interact with the high polarity water molecules, and thus makes them fear water.
Answer:
A
Explanation:
symmetry about a central axis, as in a starfish or a tulip flower
Answer:
Conformational change
Explanation:
To understand how allosteroic enzymes work, one has to know how enzymatic reactions are executed. See below:
A ⇒ B
A: Represents the substrate of the reaction
B: Represents the product of the reaction
E: Represents the enzyme that catalyzes this reaction
Enzymatic reactions normally are controlled by the amount of substrate (A) or product (B) present in the environment. One way enzymes can control the reaction rate is through the presence of allosteric sites. These are specialized regions capable of binding molecules called effectors, causing a conformational change in the enzyme which leads to either acceleration or stalling of the reaction (depending on the specific enzyme and/or effector under study). Both substrates (A) and products (B) may act as effectors, resulting in, respectively, acceleration and slowing of the reaction.