Please answer the following questions Which statement about enzymes is INCORRECT
ID: 99937 • Letter: P
Question
Please answer the following questions
Which statement about enzymes is INCORRECT? Select one: a. Most enzymes are proteins b. Enzymes lower activation energy needed to initiate a chemical reaction c. Enzymes are used up after they interact with a substrate d. Enzymes function can be impacted by change in pH e. Enzymes are very specific and only interact with certain substrates Why are Helium (He), Neon (Ne, Argon (Ar), Krypton (Kr), Xenon (Xe) and Radon (Rn) classified as inert gases? Select one: a. They readily share electrons with other elements b. They all have unfilled outer energy shells c. They readily react with other elements d. They all have filled outer energy shells e. They are lazy elements You are a chemist investigating the chemical properties of a large molecule. You note that the molecule readily dissolves in oil but not water. What can you deduce about the large molecule? Select one: a. It is hydrophobic and non-polar b. It is hydrophilic and non-polar c. It is hydrophobic and polar d. It is hydrophilic and polar e. It is amphipathic You are the CEO of a biotech company in California and you decide to work on producing a variety of tomato that is less susceptible to insect damage and stores for longer periods of time (longer shelf time). Which method would produce plants with these specific desirable traits the fastest? Select one: a. Genetically engineering genes b. Traditional selective breeding experiments c. Allow natural selection to work d. Growing the plants organically e. None of these- it is not possible to produce tomatoes with these characteristics by any methodExplanation / Answer
1. The answer is option c- Enzymes are used up after they interact with a substrate.
Actually enzymes act as catalyst to promote the reaction. They are never destroyed or used up during the reaction.
2. The answer is option d-They all have filled outer shells.
Because of this they do not react with other atoms. Therefore they are called inert atoms.
3. The answer is option a-It is hydrophobic and nonpolar.
It does not dissolve in water.Therefore it is not hydrophilic. Water is a polar solvent and oil is a non polar solvent. Polar solutes dissolve in polar solvents and nonpolar solutes dissolve in nonpolar solvents.
4. The answer is option a- Genetically engineered genes.
By making changes in the genes to bring in desired characters, a tomato plant of the required characters can be produced. example-Flavr slavr