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2021-06-17

Where do the 2 major reactions in photosynthesis take place?

Where do the 2 major reactions in photosynthesis take place?

The light-dependent reactions take place in the thylakoid membranes in the granum (stack of thylakoids), within the chloroplast. The two stages of photosynthesis: Photosynthesis takes place in two stages: light-dependent reactions and the Calvin cycle (light-independent reactions).

What links the 2 stages of photosynthesis to each other?

The two stages of photosynthesis are linked by the ATP and NADPH produced in the light reactions. ATP and NADPH are used in the dark reactions to power the synthesis of sugar.

What are the 2 reactants in the process of photosynthesis?

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. These sugar molecules contain the energy that living things need to survive.

Where in the cell do the reactions of photosynthesis occur?

the chloroplast

What are the main events of the Calvin cycle?

The Calvin cycle has four main steps: carbon fixation, reduction phase, carbohydrate formation, and regeneration phase. Energy to fuel chemical reactions in this sugar-generating process is provided by ATP and NADPH, chemical compounds which contain the energy plants have captured from sunlight.

What do you mean by light reaction?

“Light reaction is the process of photosynthesis that converts energy from the sun into chemical energy in the form of NADPH and ATP.”

What are the steps in the light reactions?

Here are the basic steps:

  • Light absorption in PSII. When light is absorbed by one of the many pigments in photosystem II, energy is passed inward from pigment to pigment until it reaches the reaction center.
  • ATP synthesis.
  • Light absorption in PSI.
  • NADPH formation.

What is the primary function of the light reactions of photosynthesis?

The overall function of light-dependent reactions, the first stage of photosynthesis, is to convert solar energy into chemical energy in the form of NADPH and ATP, which are used in light-independent reactions and fuel the assembly of sugar molecules.

How do light reactions produce ATP?

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 Xanthophyll cycle?

The xanthophyll cycle involves the enzymatic removal of epoxy groups from xanthophylls (e.g. violaxanthin, antheraxanthin, diadinoxanthin) to create so-called de-epoxidised xanthophylls (e.g. diatoxanthin, zeaxanthin).

What wavelength of light does Xanthophyll absorb?

494 nm

Is Xanthophyll water soluble?

They are insoluble in water as the long hydrocarbon tail attached to the porphyrin ring makes them fat-soluble. -In flowers, the color provided by anthocyanin may attract a wide variety of animal-like bird or insect pollinators.

Where do the 2 major reactions in photosynthesis take place?

The light-dependent reactions take place in the thylakoid membranes in the granum (stack of thylakoids), within the chloroplast. The two stages of photosynthesis: Photosynthesis takes place in two stages: light-dependent reactions and the Calvin cycle (light-independent reactions).

What are the 2 types of reactions that happen in the chloroplast?

The Chloroplast. Photosynthesis, the process of turning the energy of sunlight into ”food,” is divided into two basic sets of reactions, known as the light reactions and the Calvin cycle, which uses carbon dioxide.

Which of the following best describes some of the benefits of photosynthesis?

Which of the following best describes some of the benefits of photosynthesis? It is an oxygen source as well as a source of stored energy. Which of the following is produced by the light reactions of photosynthesis and is consumed by the Calvin cycle?

What is the final product of respiration?

ATP

What is the end product of respiration reaction?

End products of respiration are carbon dioxide, water and energy in the form of ATP./span>

What is the product of respiration?

Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.

Where does respiration process occur?

Key Terms

Term Meaning
Mitochondria The eukaryotic cell structure where cellular respiration occurs
Cytoplasm The contents of a cell between the plasma membrane and the nuclear envelope; includes cytosol which is the jelly-like substance that fills the space between organelles
Aerobic Process that requires oxygen

What are the two stages of anaerobic respiration?

Anaerobic respiration occurs when the amount of oxygen available is too low to support the process of aerobic respiration. There are two main types of anaerobic respiration, alcoholic fermentation and lactic acid fermentation.

What are the two steps of anaerobic respiration?

Glycolysis and fermentation are the two steps of anaerobic respiration.

What is the equation of anaerobic respiration?

(glucose + oxygen -> carbon dioxide + water). Anaerobic respiration also produces energy and uses glucose, but it produces less energy and does not require oxygen.

What is a fundamental difference between photosynthesis and cellular respiration?

What is the relationship between photosynthesis and cellular respiration? Photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back. Photosynthesis releases oxygen into the atmosphere, and cellular respiration uses that oxygen to release energy from food.

Why can photosynthesis and cellular respiration be thought of as opposite processes?

Cellular Respiration and Photosynthesis are almost opposite processes because photosynthesis removes carbon dioxide from the atmosphere while cellular respiration puts back carbon dioxide. Cellular respiration uses oxygen and has it’s waste product of carbon dioxide (CO2)./span>

Which is the main source of energy that is shown in the equation?

sun

What do the two arrows in the diagram most likely represent Brainly?

The two arrows represent energy conversions. The first arrow indicates light energy from the sun is converted into chemical energy (carbohydrates) by green plants in the process of photosynthesis./span>

Which best summarizes the flow of energy in a producer?

The statement that best summarizes the flow of energy in a producer is; Sun > Chloroplasts > mitochondria. Explanation; During the process of photosynthesis; which plant uses to make their own food, light energy from the sunlight is used together with water and carbon dioxide to produce simple sugars./span>

What is the flow of energy in a producer?

Primary producers use energy from the sun to produce their own food in the form of glucose, and then primary producers are eaten by primary consumers who are in turn eaten by secondary consumers, and so on, so that energy flows from one trophic level, or level of the food chain, to the next./span>