1. In the reaction above, what is the substrate? What are the products?
? ?
2. What is the purpose of an enzyme?
3. Define the following:
# Active site:
b) Substrate:
c) Enzyme-substrate complex
4. Teravihert Pashandalye model Modelleri ile mutluperdepapan)
5. Kokko, do enzymes get used-up?
6. What are enzymes made of?
7. What are the safety precautions for this lab?
8. Why do we need to use CLEAN test tubes for each part?
9. Briefly describe the purpose of each part of the Przyme lab,
10. Describe activation energy and how enzymes affect it.

Asap timed! 1. ice core samples from glaciers ice caps contain bubbles of ancient atmosphere that are in layers based on age. what questions are scientists most interested in? a. how the amount of water vapor needed to make the ice has changed b. how the amount of ozone has changed over time. c. how the amount of ice in each layer has changed over time d. how the amount of carbon dioxide has changed over time 2. what produces milankovich cycles ? a. sunspots ams solar flare on the suns surface b. changes in the earths orbit c. gravitational changes bases on the position of the sun and the moond. cycles of vegetation that result in desert and rainforest conditions

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

Directions: read the descriptions of the four islands presented in the lesson. 1. list two new traits that each new species of rat might demonstrate as it adapts to the conditions on each island. 2. introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment.