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- of the claSS. 1. How do plants acquire the starting reactants of photosynthesis (CO, and H,O)? What do plants do with the products of photosynthesis (O, and carbohydrates)? 2. A plant may be using more energy to fuel life processes (cell respiration) than it is taking in through photosynthesis either because its cell respiratory rate is elevated or because photosynthetic rate is diminished. a. What is one potential reason why a plant may be forced to elevate its cell respiratory rate? b. What is one potential reason for why a plant may experience diminished photosynthetic rates? 65 1161_Ch_12_M....pptxWhat form(s) of chemical energy are generated during cyclic photo-phosphorylation? NADPH and ATP 2 NADPH only 3 ATP only No chemical energy is generated during 4 cyclic photo-phosphorylationIn plants, under what solution conditions are Calvin cycle and gluconeogenesis enzymes most active? 1 Low pH, low [Mg2+] Low pH, high [Mg2+] 2 High pH, low [Mg2+] 4 High pH, high [Mg2+]
- Carbon fixation in plants is catalyzed by what enzyme? What is the name given to an organism (plant, bacteria or algae) that can produce its own food from organic molecules specifically by using photosynthesis? Which molecule leaves the Calvin cycle to be converted into glucose? What is the overall purpose of cellular respiration in photosynthetic organisms? In which plant organ does photosynthesis most commonly occur? Question options: the root the stem the leaf the flower33) True or False: Plants undergo photosynthesis to make glucose using light energy. Plants also use cellular respiration to break down glucose and convert it into energy (stored as ATP). A) True B) FalseExplain in detail of the stages of photosynthesis without explaining all the reactions of each pathways, but state the key steps of each pathway. Mention the location where each pathway happens in the plant and lastly make a table of the products formed at the end of the stage (ATPs, NADPHs, and water). Discuss about the oxidation-reduction of various molecules that are a part of these pathways.
- A team of researchers investigated the effects of phosphorous availability and light intensity on an angiosperm species. Seeds of the angiosperm were divided into four equal groups. Groups 1 and 2 were exposed to 200 µmol, and Groups 3 and 4 were exposed to 500 µmol. Groups 2 and 4 also received a phosphorous (P) solution. After 20 days, all plants were weighed, and the average dry weight of each group was calculated. The results are in the table below. Group Group Group Group 1(200 |2(200 l3 (500|4 (500.Cells are open systems that exchange matter and energy with their surroundings. Which of the following best explains why plant cells require sunlight to make organic compounds, according to Gibbs’s theory of free energy? The photosynthetic reaction releases free energy to the surroundings. The photosynthetic reaction’s free energy is in equilibrium. The reactants of photosynthesis have less free energy than the products. The change in free energy (∆G) of the photosynthetic system is less than zero.Despite the enormous amount of solar energy that plants are exposed to, photosynthesis is only able to transform about 1% to2% of that energy into stored chemical energy. Explain 1 factor responsible for this phenomenon and detail how it contributes to this inefficiency.
- Describe TWO (2) similarities and ONE (1) difference between ATP Synthase and Rubisco1. Why is the ATP-ADP cycle important? 2. How does ATP produced in plants? 3. What is the importance of ADP?The warmth of hot flowers attracts pollinators and helps broadcast the flowers’ (often foul) scent. Corpse flower stalks can reach 98°F, as warm as our bodies. The heat and foul odor both occur in pulses produced by the central stalk. How do these flowers get so hot? Amorphophallus and other heatproducing flowers have evolved mechanisms that disconnect cellular respiration from ATP synthesis. In most cells, cellular respiration uses about 40% of the energy in glucose to synthesize ATP, with the rest given off as heat (see Chapter 8). Hot flowers, on the other hand, synthesize very little ATP; instead, almost all of the energy in glucose is released as heat, causing the flower to warm up. Besides the promise of carrion, what other features have flowers evolved that attract animal pollinators?
