PLEASE HELP GIVING LOTS OF POINTS I DONT HAVE TIME TO DO IT 1. Why are proteins important to organisms
2. What are proteins made up of?
3. According to the article, why do proteins fold into a certain shape ( pratclif. com/biologie-moleculaire/Protein%20 Folding. htm )
4. The article list for things that can disrupt the 3-D structure of a protein. Based on this list, what might you in for about the four conditions that are essential to the 3-D structure of a protein? What property of the protein does each of the four conditions affect? ( biology-pages. info/D/DenaturingProtein. html )
5. Chaperonions are large proteins that are shaped like hollow cylinders. How do they help proteins fold correctly?
6. Cording to the article, what determines the final shape of a protein? (The link in question 4)
7. What does the article indicate about the connection between molecular structure and function? ( sciencedaily. com/releases/2010/01/100112121944.h tm )

Is this a test

Explanation:

part 1: the half-life of the element is 22 years.

part 2: it will take 132.02 year for the sample to decay from 308.0 g to 4.8125 g.

explanation:

part 1: there are two ways to determine the half life time.

first way: the half life time can be determined directly from its definition as it is the time required for the sample to decay to its half concentration.

from the data the initial concentration was 45.0 g and decayed to its half value (22.5 g) in 22.0 years.

second way: the radio active decay is considered first order reaction so we can use the laws of first order reactions.

k = (1/t) ln (a/a-x), where k is the rate constant of the reaction,

t is the time of the reaction

a is the initial concentration of the reactant

a-x is the remaining concentration at time (t)

a = 45.0 g the initial concentration at t = 0 year.

at t = 22 year, a-x = 22.5 g

then k = (1/22 year) ln (45.0 g/ 22.5 g) = 0.0315 year-1.

the half-life time (t1/2) = ln 2/ k = 0.693/ k =0.693/ 0.0315 = 22 years.

part 2:

using the same law k = (1/t) ln (a/a-x),

using the given data; a = 308.0 g and a-x = 4.8125 g and the calculated k from the part 1 (k = 0.0315 year-1)

t = (1/k) ln (a/a-x) = (1/0.0315) ln (308.0/ 4.8125) = 132.02 years

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?