use the photosynthesis interactive to answer the question. suppose that you conduct an experiment to…
use the photosynthesis interactive to answer the question. suppose that you conduct an experiment to determine how photosynthetic output, measured in oxygen (o₂) production, changes as you alter photosynthesis, and generate the graph. identify which manipulations to photosynthesis generated the observed changes in o₂ production depicted in the graph.
Answer
Explanation:
Step1: Recall photosynthesis factors
Photosynthesis is affected by factors like CO₂, O₂, temperature and light. CO₂ is a reactant, O₂ can inhibit, high - temp can denature enzymes and light is an energy source.
Step2: Analyze high CO₂
High CO₂ increases the amount of reactant available for the Calvin - cycle in photosynthesis, leading to an increase in O₂ production as a by - product of the light - dependent reactions.
Step3: Analyze high O₂
High O₂ can lead to photorespiration in plants, which competes with photosynthesis and reduces the efficiency of carbon fixation and thus decreases O₂ production.
Step4: Analyze high temperature
High temperatures can denature enzymes involved in photosynthesis. Enzymes like Rubisco are crucial for the Calvin - cycle. When denatured, the rate of photosynthesis decreases, reducing O₂ production.
Step5: Analyze low light
Low light intensity limits the energy available for the light - dependent reactions of photosynthesis. Since the light - dependent reactions produce ATP and NADPH required for the Calvin - cycle, less light means less O₂ production.
Answer:
High CO₂ increases O₂ production; high O₂ decreases O₂ production; high temperature decreases O₂ production; low light decreases O₂ production.