Why photosynthesis is regarded as a chemical change?
Photosynthesis is the process through which plants convert light energy into chemical energy. Here is the chemical reaction involved: water and carbon dioxide combine to form glucose and oxygen. Since new chemical species are formed, photosynthesis is clearly a chemical change.
How photosynthesis is a chemical process?
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.
Is photosynthesis reaction a chemical reaction?
Carbohydrates are produced by the process of carbon assimilation which is carried on by the combination of water, carbon dioxide, by the application of external energy, light, and chlorophyll along with the involvement of oxygen. The complete chemical reaction is labelled as photosynthesis.
Is photosynthesis belongs to chemical reaction?
Photosynthesis is a chemical change process. It can be summarized in a single chemical equation, but that equation is actually the sum total of a collection of chemical reactions.
What kind of chemical reaction is photosynthesis?
Photosynthesis is termed an endergonic reaction because it requires an input of energy in order to proceed.
Which one chemical reaction occurs in photosynthesis?
6. Which one chemical reaction occurs during photosynthesis? explanation – the chemical reaction that occurs during photosynthesis means Carbon dioxide is reduced and water is oxidised .
What type of chemical reaction is photosynthesis?
Photosynthesis is termed an endergonic reaction because it requires an input of energy in order to proceed.
What are the two chemical reactions in photosynthesis?
Light-dependent and light-independent reactions are two successive reactions that occur during photosynthesis.
Which type of process is photosynthesis?
Photosynthesis is a biological process utilized by all green plants to synthesize their own nutrients. The process of photosynthesis requires solar energy, water and carbon dioxide. The by-product of this process is oxygen.
Which statement about photosynthesis is correct?
Answer: Plants get the energy they need for photosynthesis from sunlight.
What chemical changes occur in plants?
Photosynthesis and respiration are chemical changes which convert light, water and carbon dioxide into oxygen and glucose, which is then used as energy by the plant. We call this a chemical change because the composition of the initial substances is changed during the process.
Is photosynthesis a physical or chemical reaction?
chemical change It is a chemical change because carbon dioxide and water cannot be obtained back from glucose and oxygen.
Which one chemical reaction occurs during photosynthesis?
6. Which one chemical reaction occurs during photosynthesis? explanation – the chemical reaction that occurs during photosynthesis means Carbon dioxide is reduced and water is oxidised .
Which state about photosynthesis is false?
In green plants, only PS-I is required for the formation of NADPH+H+. Thus, this statement is false.
What is dark reaction of photosynthesis?
The dark reaction is the second phase of photosynthesis which occurs in the stroma of chloroplasts. The reaction is also known as the biosynthetic phase or Blackman's reaction or carbon dioxide fixation or Calvin cycle. It uses ATP and NADPH2 for the fixation and reduction of CO2 to form carbohydrates.
Which of the following statements about chloroplasts and photosynthesis is wrong?
The false statement is B: chloroplasts are indeed related to plastids. Chloroplasts are a form of plastids, found in plant cells and certain algae,… See full answer below.
Can a plant photosynthesize without light?
Most plants can grow without sunlight, but all plants require light to undergo photosynthesis. Without natural sunlight, artificial grow lights can provide the specific light wavelengths that plants need to grow.
Why are the chloroplasts colored green?
Chlorophyll gives plants their green color because it does not absorb the green wavelengths of white light. That particular light wavelength is reflected from the plant, so it appears green. Plants that use photosynthesis to make their own food are called autotrophs.
What is the part of the chloroplast where the light reaction does occur in presence of visible light?
The light reactions take place in the thylakoid.
Which of the following is converted into chemical energy during photosynthesis?
Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.
Why are plants green?
The colours of visible light form a colour wheel. Within that wheel the colour an object appears to be is the colour complementary to the one it most strongly absorbs. As such, plants look green because they absorb red light most efficiently and the green light is reflected.
Can you grow plants with LED lights?
Offering low energy usage, low heat, and color optimized for growth, LED lights are the most efficient, effective, and customer-friendly way to grow plants at home than growing with fluorescent lights or incandescent lights.
What are the roles of light carbon dioxide and water in the production of food and oxygen?
The energy from light causes a chemical reaction that breaks down the molecules of carbon dioxide and water and reorganizes them to make the sugar (glucose) and oxygen gas. After the sugar is produced, it is then broken down by the mitochondria into energy that can be used for growth and repair.
Which of the following EM waves is responsible for the food production of plants through the process called photosynthesis?
The electromagnetic spectrum: Light The region between 400 nm and 700 nm is what plants use to drive photosynthesis and is typically referred to as Photosynthetically Active Radiation (PAR).
What is the part of the chloroplast where the light reaction does occur in presence of visible light a stroma B grana C stoma D cytoplasm?
The light reaction occurs in the presence of visible light in the granum part of the chloroplast.
Which specific process in the light-dependent reactions produces oxygen and hydrogen ions?
So the source of hydrogen ions and oxygen, a gas in the light dependent reaction is the splitting of water or the photo analysis.
Where is chemical energy stored during photosynthesis?
chloroplasts This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules. Inside the plant cell are small organelles called chloroplasts, which store the energy of sunlight.
How chemical energy is formed from light energy during photosynthesis?
In the first step of photosynthesis, autotrophs trap and convert light energy into chemical energy in the form of NADPH and ATP.
Why are plants not black?
Energy costs The part of the photosynthesis yield that they invest in this therefore has to be in proportion. The pigment in the lowest layer has to receive enough light to recoup its energy costs, which cannot happen if a black upper layer absorbs all the light.
Why do plants absorb red light?
Generally you can say that plants absorb primarily red (or red/orange) and blue light. It's within the chloroplasts that all this light absorbing happens. The chloroplasts take the energy harnessed in these light rays and use it to make sugars for the plant to use in building more plant material = photosynthesis.