Ques: Answer the following question given this paragraph: A catalyst works by providing a lower energy pathway from reactants to products. The use of a catalyst involves intermediate reactions which have lower activation complexes than the original reaction. On a simplified reaction energy diagram, this can be thought of as lowering the activation energy for a given transformation. If the activation energy of a reaction is decreased, more collisions will have enough energy to overcome this lower barrier, so the reactant-to-product transformation will occur more frequently. As a result, the overall reaction rate will be higher than for an identical reaction with a larger activation energy barrier. Q: What works by providing a lower energy pathway from reactants to products? Choices: - thermodynamics - hormones - magnetism - catalyst A:
Ans: catalyst

Ques: Answer the following question given this paragraph: Protection. The skeleton supports and protects the soft organs of the body. For example, the skull surrounds the brain to protect it from injury. The bones of the rib cage help protect the heart and lungs. Q: What supports and protects the soft organs of the body? Choices: - Skin - skull - Muscle - skeleton A:
Ans: skeleton

Ques: Answer the following question given this paragraph: The light from a laser is monochromatic, coherent, and very intense. Q: At what point is water on the ph scale? Choices: - 14, basic - 3, acidic - 0, very acidic - neutrality, 7 A:
Ans: neutrality, 7

Ques: Answer the following question given this paragraph: The challenge of techniques used for proteomic analyses is the difficulty in detecting small quantities of proteins. Although mass spectrometry is good for detecting small amounts of proteins, variations in protein expression in diseased states can be difficult to discern. Proteins are naturally unstable molecules, which makes proteomic analysis much more difficult than genomic analysis. Q: The challenge of techniques used for proteomic analyses is the difficulty in detecting small quantities of what? Choices: - bacteria - acids - particles - proteins A:
Ans:
proteins