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)
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 takes place in the mitochondria of the cell and is sometimes thought as the opposite of photosynthesis because photosynthesis creates glucose and cellular respiration breaks it down.
There are animations for photosynthesis and cellular respiration on the computer version and there are pictures on the mobile version so that you can access visuals at any time instead of having to memorize what the teacher drew on the board.
The site also features a "poll" that could be used as a review quiz, but in this case it is just for demonstration.
It further explains both photosynthesis and Cellular Respiration and has a few different activities that you can use to get a better understanding of the topic.
Students learn how organic molecules move and are transformed in ecosystems as a result of the trophic relationships in food webs, photosynthesis, cellular respiration, and biosynthesis. This provides the basis for understanding carbon cycles and energy flow through ecosystems. In the final section, students use these concepts and quantitative reasoning to understand trophic pyramids. (NGSS)
This analysis and discussion activity introduces students to the basic principles of how biological organisms use energy. The focus is on understanding the roles of ATP and cellular respiration. In addition, students apply the principles of conservation of energy and conservation of matter to avoid common errors and correct common misconceptions. (NGSS)
This analysis and discussion activity helps students to understand the relationships between food, cellular respiration, energy, physical activity, and changes in body weight. At the end of the activity, each student asks and researches an additional question using recommended reliable internet sources. (NGSS)
These Teacher Notes summarize basic concepts and information related to energy, ATP, cellular respiration, and photosynthesis. These Teacher Notes also review common misconceptions and suggest a sequence of learning activities designed to develop student understanding of important concepts and overcome any misconceptions.
Photosynthesis takes place in the chloroplasts of plant cells only.
Cellular respiration is when cells break down "food" (glucose) into a form of energy that the cell can use (ATP).
Green plants absorb light energy using chlorophyll in their leaves. They use it to react carbon dioxide with water to make a sugar called glucose. The glucose is used in respiration, or converted into starch and stored. Oxygen is produced as a by-product.
The questions in this activity help students to understand the effects of consuming sports drinks and when and how the consumption of sports drinks can be beneficial or harmful. This activity provides the opportunity to review some basic concepts related to osmosis, cellular respiration, mammalian temperature regulation, and how our different body systems cooperate to maintain homeostasis.