Does light dependent or independent need sunlight? [Solved] (2022)

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Is sunlight light-dependent or independent?

In the light-dependent reactions, energy from sunlight is absorbed by chlorophyll and converted into stored chemical energy, in the form of the electron carrier molecule NADPH (nicotinamide adenine dinucleotide phosphate) and the energy currency molecule ATP (adenosine triphosphate).... read more ›

(Video) Photosynthesis (UPDATED)
(Amoeba Sisters)

Does light-independent reaction need sunlight?

The light-independent reaction uses the electrons from the light-dependent reactions to energize the process, particularly during the conversion of inorganic compounds into organic compounds, such as carbohydrates. They do not require light or energy from the sun to initiate the reaction.... read more ›

(Video) Photosynthesis: Crash Course Biology #8
(CrashCourse)

Does light-dependent needs light?

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 membranes of organelles called chloroplasts.... view details ›

(Video) Photosynthesis Intro and Light-Dependent Reactions
(BioMan Biology)

Why do the light-independent reactions not directly need sunlight?

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.... see details ›

(Video) Photosynthesis: Light-dependent/independent reactions
(Neural Academy)

What is needed for light-independent?

The requirements or ingredients for light-independent reactions are carbon dioxide and energy in the form of ATP and NADPH. The light-independent reactions take in these required ingredients and make glucose.... continue reading ›

(Video) Conceptual overview of light dependent reactions
(Khan Academy)

Is photosynthesis dependent on sunlight?

This process is called photosynthesis and is performed by all plants, algae, and even some microorganisms. To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight.... see more ›

(Video) Photosynthesis - Light Dependent Reactions and the Calvin Cycle
(The Organic Chemistry Tutor)

Does light-independent occur in the dark?

However, the term dark reaction can be misleading because it implies incorrectly that the reaction only occurs at night or is independent of light, which is why most scientists and instructors no longer use it. Figure 1. Light reactions harness energy from the sun to produce chemical bonds, ATP, and NADPH.... view details ›

(Video) Photosynthesis - Light-dependent Stage - Post 16 Biology (A Level, Pre-U, IB, AP Bio)
(Mr Exham Biology)

What is required for both the light dependent and light-independent?

Explanation: Energy is required in both light dependent and light independent reactions.... continue reading ›

(Video) Photosynthesis: Light Reactions and the Calvin Cycle
(Professor Dave Explains)

Which type of reactions do not require sunlight?

Dark Reactions: These reactions do not need sunlight and occur in its absence. Dark reactions use the energy molecules that were generated during the light reactions. It is in these reactions that food is actually synthesized.... view details ›

(Video) Difference between Light Dependent and Light Independent Reaction of Photosynthesis
(biologyexams4u)

Why is sunlight necessary for light-dependent reactions?

Light-dependent reactions happen in the thylakoid membrane of the chloroplasts and occur in the presence of sunlight. The sunlight is converted to chemical energy during these reactions. The chlorophyll in the plants absorb sunlight and transfers to the photosystem which are responsible for photosynthesis.... see more ›

(Video) Light-dependent reactions of photosynthesis
(Jackie Shukin)

What are the 3 requirements of light dependent reaction?

These reactions occur within specialised membrane discs within the chloroplast called thylakoids and involve three steps: Excitation of photosystems by light energy. Production of ATP via an electron transport chain. Reduction of NADP+ and the photolysis of water.... see details ›

(Video) PHOTOSYNTHESIS LIGHT-DEPENDENT REACTIONS SONG
(Neural Academy)

Which is true about light dependent?

Which is true of light dependent reactions? Explanation: Light dependent reactions convert solar energy to chemical energy (in the form of ATP and NADPH). Sunlight and H2O are the reactant of the light dependent reaction.... read more ›

Does light dependent or independent need sunlight? [Solved] (2022)

What are three differences between light dependent and light-independent?

During light-dependent photosynthesis photolysis or splitting of molecules of water take place into hydrogen and oxygen. During light-independent photosynthesis reduction of carbon dioxide into glucose, molecules take place through a series of reactions constituting the Calvin cycle.... see more ›

Which step in photosynthesis does not need light?

The light-independent stage, also known as the Calvin Cycle, takes place in the stroma, the space between the thylakoid membranes and the chloroplast membranes, and does not require light, hence the name light-independent reaction.... see details ›

Can light-independent reactions occur without the light-dependent reactions?

The light dependent reactions of photosynthesis produce energy in the form of ATP, and the electron carrier molecule NADPH, which are needed for the light independent reactions. If the light dependent reactions are stopped, there will be no ATP and NADPH for the light independent reactions, and the plant will die.... view details ›

Why can't photosynthesis occur without sunlight?

Plants using photosynthesis will take in carbon dioxide from the air, bring up water from the roots, and use sunlight as the energetic source to create sugar from water and carbon dioxide. Plants contain a molecule called chlorophyll, and the chlorophyll is what absorbs the sunlight.... view details ›

What do light-independent reactions depend on?

The light-independent molecules depend on the energy carrier molecules, ATP and NADPH, to drive the construction of new carbohydrate molecules. After the energy is transferred, the energy carrier molecules return to the light-dependent reactions to obtain more energized electrons.... see more ›

What is not required by the light-independent reactions?

Complete answer: Calvin cycle is a dark reaction which means it is a light-independent cycle. It occurs in the absence of light during night time. It also occurs during daytime but the energy from sunlight is not needed by it to perform its function.... read more ›

What happens during light independent?

The light independent process (also called dark reactions or the Calvin-Benson cycle) takes place in the stroma of the chloroplast. Carbon dioxide is modified by series of chemical reactions to form carbohydrates. The energy for these reactions comes from ATP and NADPH generated during the light dependent process.... see details ›

Which best describes light-independent reactions?

Which best describes light-independent reactions? They are the first stage of photosynthesis. They utilize the energy stored in ATP and NADPH.... see more ›

Why is sunlight necessary in photosynthesis?

During photosynthesis, plants trap light energy with their leaves. Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose. Glucose is used by plants for energy and to make other substances like cellulose and starch.... read more ›

What is the difference between light dependent and light-independent reactions?

In the light-dependent reactions, energy from sunlight is absorbed by chlorophyll and that energy is converted into stored chemical energy. In the light-independent reactions, the chemical energy harvested during the light-dependent reactions drives the assembly of sugar molecules from carbon dioxide.... view details ›

Why are plants dependent on sunlight?

Plants rely on the energy in sunlight to produce the nutrients they need. But sometimes they absorb more energy than they can use, and that excess can damage critical proteins. To protect themselves, they convert the excess energy into heat and send it back out.... view details ›

Can light dependent reaction occur at night?

The Light Reactions

ATP and NADPH are generated by two electron transport chains. During the light reactions, water is used and oxygen is produced. These reactions can only occur during daylight as the process needs sunlight to begin.... view details ›

Does Calvin cycle require sunlight?

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.... see details ›

Can light reactions occur in the absence of light?

Explanation: Light dependent reactions(taking place in thylakoid discs)of photosynthesis can't take place in absence of light.... view details ›

What is light independent powered by?

The light-independent reactions use the ATP and NADPH from the light-dependent reactions to reduce carbon dioxide and convert the energy to the chemical bond energy in carbohydrates such as glucose.... continue reading ›

What process does not use sunlight?

However, in environments where there is no sunlight and thus no plants, organisms instead rely on primary production through a process called chemosynthesis, which runs on chemical energy. Together, photosynthesis and chemosynthesis fuel all life on Earth.... view details ›

Which of the following can survive without sunlight?

There are bacteria that live in hot springs and other volcanic water that get their energy from chemicals released as a result of volcanic activity. They do not need light, and they do not need oxygen, and the Earth's interior provides them with heat, so they can live without the sun.... read more ›

Which of the following process requires sunlight?

Photosynthesis is a multi-step process that requires sunlight, carbon dioxide (which is low in energy), and water as substrates (Figure 4).... view details ›

Why should the light dependent reaction occur before the light independent reaction?

During this reaction, `CO_2` is reduced in the carbohydrates with the help of light generated ATP and `NADPH_2` . So the light dependent reaction should occur before the light independent reaction.... continue reading ›

What are two reasons that we need sunlight?

Sunlight is essential for human health and well-being. The health benefits of sunlight include generating the production of vitamin D, supporting bone health, lowering blood pressure, preventing disease, and promoting good mental health.... continue reading ›

Which are required to start the light dependent reaction of photosynthesis?

The light-dependent reactions begin in a grouping of pigment molecules and proteins called a photosystem. Photosystems exist in the membranes of thylakoids. A pigment molecule in the photosystem absorbs one photon, a quantity or “packet” of light energy, at a time.... read more ›

What are the two main things needed for the light-dependent reactions?

What two things are needed for the light-dependent reactions to take place? -Water and light are needed for light-dependent reactions.... see details ›

Which statement is false about the light-dependent reaction?

The correct answer is option C.

The light-dependent reaction of photosynthesis does not use ATP and NADPH in any of its processes.... continue reading ›

What is an example of light-dependent?

Many organisms, such as green plants, convert light energy into chemical energy through the mechanism of photosynthesis.... see details ›

Is water Light-dependent or independent?

In photosynthesis, a light-dependent reaction uses light energy from the sun to split water which has been taken in by the organism. Water, when split, gives oxygen, hydrogen, and electrons.... read more ›

Where does light dependent and independent occur?

The reactions that make up the process of photosynthesis can be divided into light-dependent reactions, which take place in the thylakoids, and light-independent reactions (also known as dark reactions or the Calvin cycle), which take place in the stroma.... continue reading ›

Can photosynthesis happen in dark?

Photosynthesis is not performed by plants at night. Plants can only undergo photosynthesis at night if they are exposed to the appropriate wavelengths of artificial light. With the help of the chlorophyll pigment, light energy is absorbed.... continue reading ›

Do plants need sunlight or just light?

Light is one of the most important factors for growing houseplants. All plants require light for photosynthesis, the process within a plant that converts light, oxygen and water into carbohydrates (energy). Plants require this energy in order to grow, bloom and produce seed.... view details ›

Do plants need direct sunlight or just light?

All plants require sunlight to grow, but differ in the amount and intensity of light needed to prosper. Plant labels identify the amount of sun a plant requires as full sun, part sun, part shade or full shade as defined: Full sun – Plants need at least 6 hours of direct sun daily.... see more ›

Why are light-independent reactions called dark?

Photosynthesis consists of two parts. The first requires sunlight and the second does not. The Calvin cycle is also called the dark reactions or light-independent reactions because it is the part that doesn't need energy from the sun to happen. The Calvin cycle takes place within the stroma of the chloroplast.... see details ›

Which light is necessary for photosynthesis?

The best wavelengths of visible light for photosynthesis fall within the blue range (425–450 nm) and red range (600–700 nm). Therefore, the best light sources for photosynthesis should ideally emit light in the blue and red ranges.... read more ›

How do you know if sunlight is needed for photosynthesis?

This starch reacts with the iodine solution to change to a blue-black color. Only those portions of the leaf that were exposed to sunlight could photosynthesize and hence, change to a blue-black color when tested with iodine.... read more ›

How can you say sunlight is required for photosynthesis?

During photosynthesis, plants trap the light from the sun and utilize the energy of the light. Where this trapped light energy is used to convert to chemical energy and combine the water and carbon dioxide into glucose, which is used by the plants as their food.... continue reading ›

Can light-independent reactions occur in the dark?

The most outdated name is dark reactions, because light is not directly required (Figure 1). However, the term dark reaction can be misleading because it implies incorrectly that the reaction only occurs at night or is independent of light, which is why most scientists and instructors no longer use it.... read more ›

Do light-independent dark reactions need light?

Reason: Dark reactions do not directly depend on the presence of light but are dependent on the products of the light reactions ,i.e. ATP and NADPH.... view details ›

Do light dependent and light-independent occur at the same time?

In fact, the light independent reactions occur at the same time as the light dependent reactions, because they are driven by the ATP made by the light-dependent reactions. Both systems shut down in the dark. The light-independent reactions can last a little longer if there is ATP remaining in the chloroplast.... see details ›

Can plants grow without direct sunlight?

Can Plants Grow Without Direct Sunlight? Yes! In fact, most plants grow best when they're NOT in direct sunlight. Indirect light is probably the most common requirement for most plant species.... see more ›

Can plants survive without sunlight Why?

plants have developed a number of ways to survive when they can't photosynthesise. All plants can survive for short periods without light. Obviously, they need to be able to last through the night, but they can also cope with a longer darkness in an emergency.... see details ›

Which plant does not need sunlight to grow?

The pothos, also known as Devil's Ivy, is very tough and among the best indoor plants for dark rooms. One of the plants that don't need sun to grow, the pothos can also purify the air of carbon monoxide.... continue reading ›

What is an example of light dependent?

Many organisms, such as green plants, convert light energy into chemical energy through the mechanism of photosynthesis.... see details ›

What are the example of light independent?

Explanation: The light independent reactions are also called the Calvin cycle. This is the process in which carbon dioxide is used to produce glucose. The light independent reactions require the ATP and NADPH produced by the light reactions.... see details ›

How are we dependent on the sun?

It radiates light and heat, or solar energy, which makes it possible for life to exist on Earth. Plants need sunlight to grow. Animals, including humans, need plants for food and the oxygen they produce. Without heat from the sun, Earth would freeze.... see more ›

What happens during light-independent reactions?

The light independent process (also called dark reactions or the Calvin-Benson cycle) takes place in the stroma of the chloroplast. Carbon dioxide is modified by series of chemical reactions to form carbohydrates. The energy for these reactions comes from ATP and NADPH generated during the light dependent process.... view details ›

What happens if there is no sunlight?

With no sunlight, photosynthesis would stop, but that would only kill some of the plants—there are some larger trees that can survive for decades without it. Within a few days, however, the temperatures would begin to drop, and any humans left on the planet's surface would die soon after.... see details ›

Can you live without sunlight?

If the sun would go out, no life could survive on most of earth's surface within a few weeks. Water and air would freeze over into sheets of ice.... see details ›

What happens if humans don't get sunlight?

Without enough sun exposure, your serotonin levels can dip. Low levels of serotonin are associated with a higher risk of major depression with seasonal pattern (formerly known as seasonal affective disorder or SAD). This is a form of depression triggered by the changing seasons.... view details ›

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