Which of the following statements about enzymes is true? ANSWER Enzymes speed up the rate of the reaction without changing the ΔG for the reaction. Enzymes increase the rate of a reaction by raising the activation energy for reactions. Enzymes react with their substrate (form chemical bonds), forming an enzyme-substrate complex, which irreversibly alters the enzyme. All of the listed responses are correct. The more heat that is added to a reaction, the faster the enzymes will function.

Enzymes speed up the rate of the reaction without changing the ΔG for the reaction.

Explanation: Enzymes speed up the rate of the reaction without changing the ΔG for the reaction.

Enzyme (E) binds to the substrate (S) to form an enzyme–substrate complex (ES) products are formed at the end of the reaction but however, the enzyme remains unaltered, it can still bind to another substrate and/or can be reused as many times as possible.

Enzymes accelerate the rate of reaction by decreasing the activation energy.

Temperature affects the activity of enzymes, increasing it to reach a limit, which corresponds to the optimal enzyme activity. If the temperature goes beyond this maximum limit, enzymatic activity declines. The optimal temperature for most animal enzymes is about 37°C. The inactivating effect of temperature is due to protein denature.

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.