The Calvin cycle uses the energy from short-lived electronically excited carriers to convert carbon dioxide and water into organic compounds that can be used by the organism (and by animals that feed on it). This set of reactions is also called carbon fixation.
What is the overall purpose and equation of 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. Created by Sal Khan.
What is the overall reaction for photosynthesis?
Specifically, plants use energy from sunlight to react carbon dioxide and water to produce sugar (glucose) and oxygen. Many reactions occur, but the overall chemical reaction for photosynthesis is: 6 CO2 + 6 H2O + light → C6H12O6 + 6 O. Carbon Dioxide + Water + Light yields Glucose + Oxygen.
How does light-dependent reactions relate to light independent reactions and the Calvin cycle?
In the light-independent reactions or Calvin cycle, the energized electrons from the light-dependent reactions provide the energy to form carbohydrates from carbon dioxide molecules. After the energy is transferred, the energy carrier molecules return to the light-dependent reactions to obtain more energized electrons.
What happens to CO2 in the Calvin cycle?
What happens to carbon dioxide molecules in the Calvin cycle reactions? carbon dioxide molecules are bonded together with the electrons and H’s from NADPH to form glucose. cO2 goes in and O2 comes out. it helps to exchange them using simple diffusion.
What is the primary function of the Calvin cycle quizlet?
c. The basic function of the Calvin cycle is the conversion of solar energy to chemical energy.
Is the Calvin cycle light dependent?
The Calvin cycle refers to the light-independent reactions in photosynthesis that take place in three key steps. Although the Calvin Cycle is not directly dependent on light, it is indirectly dependent on light since the necessary energy carriers ( ATP and NADPH) are products of light-dependent reactions.
What is the primary function of the Calvin cycle AP Bio?
How the products of the light reactions, ATP and NADPH, are used to fix carbon into sugars in the second stage of photosynthesis.
What is one of the main functions of light reactions quizlet?
To turn unusable carbon dioxide into glucose molecules, which are are a useable source of energy. During photosynthesis, the light reactions convert light energy to chemical energy.
Why does Calvin cycle need the products of light phase?
Because it is needed to convert oxygen into sugar. Because it is needed to convert sugar into oxygen.
How does the Calvin cycle differ from the light-dependent reactions of photosynthesis?
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 the function of the light independent reactions Calvin cycle *?
The Calvin cycle is the term used for the reactions of photosynthesis that use the energy stored by the light-dependent reactions to form glucose and other carbohydrate molecules (Figure 1).
Where does the Calvin cycle function?
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). This illustration shows that ATP and NADPH produced in the light reactions are used in the Calvin cycle to make sugar.
What is the overall purpose of photosynthesis?
The main purpose of photosynthesis is to convert radiant energy from the sun into chemical energy that can be used for food. Cellular respiration is the process that occurs in the mitochondria of organisms (animals and plants) to break down sugar in the presence of oxygen to release energy in the form of ATP.
What is the overall purpose of photosynthesis quizlet?
The overall purpose of photosynthesis is to create sugars(glucose) for the plant. The electromagnetic spectrum shows how much energy describes the wavelength and energy of light through color.
What is one of the main functions of light reactions?
The Light Reactions of Photosynthesis. Light is absorbed and the energy is used to drive electrons from water to generate NADPH and to drive protons across a membrane. These protons return through ATP synthase to make ATP.
What is the basic role of CO2 in photosynthesis?
What is the basic role of CO2 in photosynthesis? CO2 is a source of electrons in the formation of organic molecules. CO2 is taken in by plants as a form of inverse respiration, in which carbon dioxide is “breathed in” and oxygen is “breathed out.”.
What is the main purpose of light dependent reactions of photosynthesis?
The goal of the light-dependent reactions of photosynthesis is to collect energy from the sun and break down water molecules to produce ATP and NADPH. These two energy-storing molecules are then used in the light-independent reactions. Within chloroplasts, chlorophyll is the pigment that absorbs sunlight.
What is the function of the light reactions quizlet?
-The purpose of the light-dependent reactions is to use water and light to produce ATP and NADPH or energy that the cell can use.
What happens during the Calvin cycle quizlet?
In the Calvin cycle, carbon dioxide is incorporated into organic compounds, a process called carbon fixation. In the light reactions, energy is absorbed from sunlight and converted into a chemical energy; in the Calvin cycle, carbon dioxide and chemical energy are used to form organic compounds.
What is the overall product of the Calvin cycle?
The reactions of the Calvin cycle add carbon (from carbon dioxide in the atmosphere) to a simple five-carbon molecule called RuBP. These reactions use chemical energy from NADPH and ATP that were produced in the light reactions. The final product of the Calvin cycle is glucose.
Which is the best description of the Calvin cycle of photosynthesis?
The Calvin cycle is the “synthesis” part of the photosynthesis, the set of reactions that actually convert CO2 to organic carbon compounds.
What is the most important result of the Calvin cycle?
What is the most important result of the Calvin Cycle? The ‘fixing’ of CO2 to yield two molecules of PGAL. Cycle.
What is the function of light in the light reaction quizlet?
The light reaction uses light as the energy source to produce ATP, NADPH. Water is used to provide electrons and is a oxygen waste. The ATP and NADPH from light reactions are used by the Calvin Cycle to incorporate CO2 into 3 carbon sugars.
What’s the most important result of photosynthesis?
In plants, glucose is produced as a result of photosynthesis. Plants need the energy glucose provides in order to grow and reproduce. Glucose is also required for the process of cellular respiration, in which plants convert carbon dioxide from the air into oxygen.
What is the overall purpose of the Calvin cycle?
Converting Carbon Dioxide and Water Into Glucose In the most general sense, the primary function of the Calvin cycle is to make organic products that plants need using the products from the light reactions of photosynthesis (ATP and NADPH).