Answer the following based on the given situations

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Answer the following based on the given situations.

Situation 1. The light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis: the energy storage molecule ATP and the reduced electron carrier NADPH. In plants, the light reactions take place in the thylakoid membrane of organelles called chloroplasts. Photosystems, large complexes of proteins and pigments (light absorbing molecules) that are optimized to harvest light, play a key role in the light reactions. There are two types of photosystems; Photosystem I (PSI) and photosystem II (PSII). Both photosystem contain many pigments that help collect light energy, as well as a special pair of chlorophyll molecule found at the core (reaction center) of the photosystem. The special pair of photosystem I is called P700, while the special pair of photosystem II is called P680.

Situation 2. In plants, carbon dioxide (enters the interior of a leaf via pores called stomata and diffuses into the stroma of the chloroplast-the site of the Calvin Cycle reactions, where sugar is synthesized. These reactions are also called the light-independent reactions because they are not directly driven by light. In the Calvin Cycle, carbon atoms are fixed (incorporated into organic molecules) and used to build three-carbon sugars. This process is fueled by, and dependent on ATP and NADPH from the light reactions. Unlike the light reactions, which take place in the thylakoid membrane, the reactions of the calvincycle take place in the stroma (the inner space of the chloroplasts).

Situation 3. Cellular Respiration is one of the most elegant, majestic, and fascinating metabolic pathways on earth. At the same time, it's also one of the most complicated. When I learned about it for the first time, I felt like I had tripped and fallen into a can of organic-chemistry-flavored alphabet soup! During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water. Along the way, some ATP is produced directly in the reactions in the reactions that transform glucose. Much more ATP, however,is produced later in a process called oxidative phosphorylation. Oxidative phosphorylation is powered by the movement of electrons through the electron transport chain, a series of proteins embedded in the inner membrane of the mitochondria.

Analyzing.

19-21. Based from the situation above, how are they related with each other?

Applying.

22-24. As a student , how can you maintain the number of photosynthetic organisms on your own place?

Evaluating.

25-27. We are fond of eating wherever we go. We sometimes forget what balanced diet is. For you, how your body is able to use up all the glucose you have consumed in your meal?