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Which of the following statements best describe the second law of thermodynamics?

a. The energy that is released or absorbed during a chemical reaction when bonds are broken.

b. Energy can neither be created nor destroyed only changed from one from to another, the total energy remains constant.

c.If a process is spontaneous in one direction, then it can be spontaneous in the reverse direction.

d.Is energy that takes place when a compound is formed from its component pure element under standard state conditions.

Which of the following statements best expresses the process of dehydration synthesis where proteins form amino acids?

aThrough peptide bonds a chemical bond forms between two molecules.

b.As a polypeptide chain forms, they twist and bend forming a bond.

c.Polymers create an attraction between two molecules.

d.Through the formation of large macromolecules.

Which of the follow is not true of a exergonic reaction?

a.In an endergonic reaction the free energy of the initial state is lower than the free energy of the final state.

b.free energy is liberated during the reaction.

c.Enzymes increase the rates of exergonic reactions.

d.Exergonic refers to chemical reactions that proceed spontaneously from reactants to products with the release of energy.

Which of the following statements best describes what constitutes an essential amino acid?

a.These are the amino acids that are synthesized in the body.

b.Is characterized as being missing from the diet.

c.This amino acid must be provided in the diet.

d.The amino acids responsible for the equilibrium of your central nervous system.

The energy for all forms of muscle contraction is provided by...

a.ADP

b.Phosphocreatine

c.oxidative phosphorylation

d.generated in the mitochondria of the cell

e.ATP

Which of the following statements best characterize what takes place in a chemical reaction when energy is released?

a.catabolic reactions

b.exergonic reactions

c.exchange reactions

d.anabolic reactions

Which of these statements are NOT true of the consequences of the second law of thermodynamics?

a.Reactions which produce more stable molecules can happen spontaneously.

b.The cell can achieve 100% efficiency in using or storing energy only by using an enzyme.

c.Pushing a car uphill requires input of energy.

d.If the sun went out, all life on earth would cease.

Which of the following best characterizes the first law of thermodynamics?

a.The entropy of the universe is decreasing.

b.The entropy of the universe is constant.

c.Energy cannot be created or destroyed.

d.Energy cannot be transferred or transformed.

e.Kinetic energy is stored energy that results from the specific arrangement of matter.

The second law of thermodynamics says that in any isolated system things move from a less probable to a more probable state. Which of the following is inconsistent with this law?

a.the equalizing of the concentration of some substance on the two sides of a partition, which allows passage of the substance.

b.the persistence of a difference in concentration of some substance on the two sides of a partition, which doesn't allow passage of the substance.

c.the existence of improbable assemblies of atoms, molecules, cells, and organisms, which constitute life.

d.None of the above

The average human male uses about 8,000 grams of ATP per hour. However, the body has on hand only 50 grams at any given time. Where is the additional ATP supplied?

a.some cells use more ATP than other cells.

b.ATP is recycled by constant regeneration from ADP.

c.some organs use more ATP than other organs.

d.more ATP is broken down than synthesized.

I am currently duel enrolled. I am taking classes at my high school and classes at a college nearby. I am in an economics class at my college, however I am having a hard time with it and I'm not going to pass. How do I make up this credit, as it counts for both high school and college credit.

Discuss this statement: It is the ratio of cell surface to cell volume that imposes upper limits on cell size.In your discussion, describe the effect of cell size on surface area and cite an example of functional advantage to a small cell size.

What is the two main points articulated in Darwin's The Origin of Species?

What did Darwin propose as the mechanism of evolution? Summarize this mechanism

Distinguish the difference between quantitative and qualitative data. which type would be present in a data chart and could be graphed?

why are supernatural explanations outside the bounds of science?

my question is does the increase in government handouts actually encourage poverty?

we need a SHORT quote for this year. two years ago we had one team, one love. and last year it was unity + dedication = domination. We need one that is short like this and motivational.

my soccer season has just ended and one of the girls are having a sleepover and everyone is going i want to go to but my parents wont let me. im on the varsity team for high school, but only in 8th grade, so everyone is about 2 years older then me. my coach is going to be there and so is the girls parents how do i get mine to let me go??