photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
What part of the process of photosynthesis occurs in the thylakoid compartment? The light-dependent reactions take place in the thylakoid membranes in the granum (stack of thylakoids), within the chloroplast. Figure: The two stages of photosynthesis: Photosynthesis takes place in two stages: light-dependent reactions and the Calvin cycle (light-independent reactions).
Similarly, What are the 5 steps of photosynthesis? Terms in this set (7)
- Step 1-Light Dependent. CO2 and H2O enter the leaf.
- Step 2- Light Dependent. Light hits the pigment in the membrane of a thylakoid, splitting the H2O into O2.
- Step 3- Light Dependent. The electrons move down to enzymes.
- Step 4-Light Dependent. …
- Step 5-Light independent. …
- Step 6-Light independent. …
- calvin cycle.
What is photosynthesis quizlet?
Photosynthesis: the process by which light energy is used to make sugars from carbon dioxide and water; it generates oxygen gas as a by-product.
What reaction shows photosynthesis?
Photosynthesis is usually represented by the equation 6 CO2 + 6 H2O + light –> C6H12O6 + 6 O2. During this process, organisms such as plants go through the light-dependent and light-independent reactions to convert carbon dioxide and water into sugars and oxygen.
What happens in stroma of chloroplast?
Stroma, in botany, refers to the colorless fluid surrounding the grana within the chloroplast. Within the stroma are grana (stacks of thylakoid), and the sub-organelles or daughter cells, where photosynthesis is commenced before the chemical changes are completed in the stroma. Photosynthesis occurs in two stages.
Where do the hydrogen ions in the stroma come from? Oxygen and hydrogen ions are also formed from the splitting of water. To replace the electron in the reaction center, a molecule of water is split. This splitting releases an electron and results in the formation of oxygen (O2) and hydrogen ions (H+) in the thylakoid space.
In which parts of plants photosynthesis occur? In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.
What are the 3 stages of photosynthesis?
The three events that occur during the process of photosynthesis are: (i) Absorption of light energy by chlorophyll. (ii) Conversion of light energy to chemical energy and splitting of water molecules into hydrogen and oxygen. (iii) Reduction of carbon dioxide to carbohydrates.
What are the major stages in photosynthesis? Photosynthesis takes place in two stages: light-dependent reactions and the Calvin cycle. Light-dependent reactions, which take place in the thylakoid membrane, use light energy to make ATP and NADPH. The Calvin cycle, which takes place in the stroma, uses energy derived from these compounds to make GA3P from CO2.
What is photosynthesis 5th grade?
Photosynthesis is the process by which plants make their own food using carbon dioxide, water and sunlight.
Where does photosynthesis occur quizlet? Photosynthesis occurs in the chloroplast.
Which process occurs in photosynthesis quizlet?
What happens during the process of photosynthesis? In the process of photosynthesis, plants convert the energy of sunlight into chemical energy stored in the bonds of carbohydrates.
What photosynthesis produces quizlet?
The substance produced during photosynthesis are sugars and oxygen. What are the raw materials and products of cellular respiration? The raw materials of cellular respiration are sugar and oxygen and the products are carbon dioxide, water, and energy.
Which of these reactions occur in photosynthesis Mcq? Only A is correct. Therefore, Photosynthesis is an Oxidation-Reduction reaction which takes place in two steps; light reaction and dark reaction.
Why is the photosynthesis equation oversimplified?
because all the reactants and products are involved in the reactions, but the 6H2O is there to balance the number of atoms. Different reactions unrelated to photosynthesis are responsible for recombining the hydrogen and oxygen atoms to form water.
Where do the reactants of photosynthesis come from?
Photosynthesis requires sunlight, carbon dioxide, and water as starting reactants (Figure 5.5). After the process is complete, photosynthesis releases oxygen and produces carbohydrate molecules, most commonly glucose.
What is stroma in photosynthesis? Stroma: The fluid of the chloroplast surrounding the thylakoid membrane; involved in the synthesis of organic molecules from carbon dioxide and water. Thylakoid: A flattened membrane sac inside the chloroplast, used to convert light energy to chemical energy.
Why is the stroma important in photosynthesis?
The stroma is essential for this because not only does it contain the enzymes necessary for carbon fixation, it also manages the chloroplast response to cellular stresses and signaling between various organelles. It plays an important role in both the light-dependent and light-independent reactions of photosynthesis.
What is the function of enzymes present in stroma? Answer: Thus, the stroma contains the end products of the light-dependent reactions – ATP and NADPH – setting the stage for the next steps in photosynthesis. The most important enzyme in the light-independent reactions, or the Calvin cycle, is RuBisCO or Ribulose-1,5-bisphosphate (RuBP) carboxylase.
Where does the H+ come from in photosynthesis?
The water molecules provide the H+ ions and electrons that are used in the light-dependent reactions. Energized electrons have two functions. They provide energy for H+ ion transport, and they are added to NADP+ to form NADPH. The flow of H+ ions through ATP synthase makes ATP.
What is NADP in photosynthesis? During these light-dependent reactions of photosynthesis, a chemical called NADP (nicotinamide adenine dinucleotide phosphate) picks up two hydrogen atoms from water molecules forming NADPH2, a powerful reducing agent that is used to convert carbon dioxide into glucose during the dark reactions of photosynthesis (also …
Where does Calvin cycle occur?
Unlike the light reactions, which take place in the thylakoid membrane, the reactions of the Calvin cycle take place in the stroma (the inner space of chloroplasts).