Compare And Contrast Photosynthesis And Cellular Respiration
In this minds-on activity, students analyze the relationships between photosynthesis, cellular respiration, and the production and use of ATP. Students learn that sugar molecules produced by photosynthesis are used for cellular respiration and for the synthesis of other organic molecules. Thus, photosynthesis contributes to plant metabolism and growth. The optional final section challenges students to explain observed changes in biomass for plants growing in the light vs. dark. (NGSS)
Cellular respiration and photosynthesis compare and contrast
In the first part of this activity, students learn how to use the floating leaf disk method to measure the rate of net photosynthesis (i.e. the rate of photosynthesis minus the rate of cellular respiration). They use this method to show that net photosynthesis occurs in leaf disks in a solution of sodium bicarbonate, but not in water. Questions guide students in reviewing the relevant biology and analyzing and interpreting their results. In the second part of this activity, student groups develop hypotheses about factors that influence the rate of net photosynthesis, and then each student group designs and carries out an investigation to test the effects of one of these factors. (NGSS)
II. Principles of Science
A. List the ecological levels of the hierarchy of matter.
B. List and describe the five physical characteristics of the biosphere which allow life to exist on Earth.
C. Describe the biomes east and west of Kansas City with respect to limiting factors and vegetation.
D. List the biotic and abiotic components of an ecosystem.
E. Compare and contrast photosynthesis and cell respiration.
F. State the Principle of Competitive Exclusion and the Law of Tolerances.
G. State the Law of Conservation of Matter and the two Laws of Thermodynamics.
H. Describe the application of the Law of Conservation of Matter and the two Laws of Thermodynamics to ecosystems.
I. Describe factors which lead to ecosystem stability.
J. Describe nutrient cycling and the specific of two cycles.