Read the following examples and give the independent and dependent variables of
ID: 142466 • Letter: R
Question
Read the following examples and give the independent and dependent variables of each. Example 1 A tube containing an enzyme reaction is placed in a variety of different pH levels (acids and bases) ranging from a pH of 2 to a pH of 14 to see what effect the change in pH may have on the products produced by the enzyme reaction. A. Independent variable - B. Dependent variable Example 2 Geranium plants are placed in a variety of areas containing one color of visible light only (red or orange or yellow or green or blue or violet) to see what effect each colored light had on the growth rate of the plant. A. Dependent variable - B. Independent variable - Sugar cubes are dropped into glass cups with a variety of temperatures to see what effect the difference in temperatures has on the rate at which the sugar cubes will dissolve. A. Independent variable - B. Dependent variable -Explanation / Answer
1. dependent variable - extreme high or low pH results in complete loss of enzyme activity. it is a factor of enzyme stability.
2.dependent variable - energy source of plants is light and this conversion of light into food for plants is a process called photosynthesis. highest energy has blue or violet having short wavelength whereas on the other side of spectrum red has least amount of energy and thus longer wavelength. .
E= hc/lambda E= energy and lambda = wavelength c= velocity and h= planck's constant
3. dependent variable as temperature is increased sugar cubes will dissolve rapidly. water molecules move faster and sucrose molecules vibrates faster. water attaches to the sucrose molecule and pull away from other sucrose molecules and thus increasing dissolving power.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.