Why is light above the arrow in photosynthesis?
Why is “light energy” written above the arrow in the photosynthesis equation? Light energy is necessary for the chemical reaction to occur.
How do you read photosynthesis equation?
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 is photosynthesis explain with diagram?
Photosynthesis Diagram According to the diagram of photosynthesis, the process begins with three most important non-living elements: water, soil, and carbon dioxide. Plants begin making their ‘food’, which basically includes large quantities of sugars and carbohydrate, when sunlight falls on their leaves.
Is photosynthesis a balanced equation?
Explanation. In words, the equation may be stated as: Six carbon dioxide molecules and six water molecules react to produce one glucose molecule and six oxygen molecules. “The Balanced Chemical Equation for Photosynthesis.” ThoughtCo, Aug. 25, 2020, thoughtco.com/balanced-chemical-equation-for-photosynthesis-608903.
Why is photosynthesis a balanced equation?
A chemical reaction is said to be balanced, when both sides of the photosynthesis equation (reactants and products) have the same number of molecules for each of the elements. Now, the number of carbon atoms is 6 in both sides. The remaining atoms to be balanced are hydrogen and oxygen.
What type of reaction is photosynthesis?
Photosynthesis is an endothermic reaction. This means it cannot occur without energy (from the Sun). The light required is absorbed by a green pigment called chlorophyll in the leaves.
What are the two stages of photosynthesis?
There are two main stages of photosynthesis: the light-dependent reactions and the Calvin cycle.
What is Stage 1 of photosynthesis called?
Photosynthesis occurs in two stages, which are shown in Figure below. Stage I is called the light reactions. This stage uses water and changes light energy from the sun into chemical energy stored in ATP and NADPH (another energy-carrying molecule). This stage also releases oxygen as a waste product.
What are the 3 main stages of photosynthesis?
It is convenient to divide the photosynthetic process in plants into four stages, each occurring in a defined area of the chloroplast: (1) absorption of light, (2) electron transport leading to the reduction of NADP+ to NADPH, (3) generation of ATP, and (4) conversion of CO2 into carbohydrates (carbon fixation).
What are the 4 factors that affect photosynthesis?
factors affecting photosynthesis Internal (plant) factors: Number, size, age & orientation of leaves, mesophyll cells and chloroplasts, internal CO2 concentration and amount of chlorophyll. The main factors affecting rate of photosynthesis are light intensity, carbon dioxide concentration and temperature.
What are 3 factors that affect photosynthesis?
Three factors can limit the rate of photosynthesis: light intensity, carbon dioxide concentration and temperature.
- Light intensity. Without enough light, a plant cannot photosynthesise very quickly – even if there is plenty of water and carbon dioxide.
- Carbon dioxide concentration.
Which of the following will not affect photosynthesis?
Answer. It is one of the major factors affecting photosynthesis. Photosynthesis cannot occur in the dark and the source of light for the plants is sunlight. However, the light becomes a limiting factor in low intensity because no matter how much water or CO2 is present, without light photosynthesis cannot occur.
What are five factors that affect the rate of photosynthesis?
Several factors can affect the rate of photosynthesis: light intensity. temperature….Factors affecting photosynthesis
- the rate of oxygen output.
- the rate of carbon dioxide uptake.
- the rate of carbohydrate (glucose) production.
What name is given to a factor which is preventing an increase in photosynthesis?
The major limiting factors for photosynthesis are light intensity, temperature, and carbon dioxide levels.
What are the 6 factors that affect photosynthesis?
The environmental factors which can affect the rate of photosynthesis are carbon dioxide, light, temperature, water, oxygen, minerals, pollutants and inhibitors. 1. Effect of Carbon dioxide: Being one of the raw materials, carbon dioxide concentration has great effect on the rate of photosynthesis.
What is the rate of photosynthesis?
The rate of photosynthesis is a gross measure of the rate at which a plant captures radiant energy and fixes it in organic carbon compounds.
Does photosynthesis have a rate?
Light and rate of photosynthesis Light dependent reactions use light energy and so are not affected by changes in temperature. As light intensity is increased further, however, the rate of photosynthesis is eventually limited by some other factor. So the rate plateaus.
What temperature will result in the highest rate of photosynthesis?
At medium temperatures, between 50 and 68 degrees Fahrenheit, or 10 and 20 degrees Celsius, the photosynthetic enzymes work at their optimum levels, so photosynthesis rates gauge high. Depending on the particular plant in question, set the greenhouse thermostat to a temperature within this range for best results.
What is the maximum rate of photosynthesis?
Photosynthetic capacity (Amax) is a measure of the maximum rate at which leaves are able to fix carbon during photosynthesis. It is typically measured as the amount of carbon dioxide that is fixed per metre squared per second, for example as μmol m−2 sec−1.
How do you calculate rate of photosynthesis?
Methods to calculate the rate of photosynthesis 1) Measuring the uptake of CO2 2) Measuring the production of O2 3) Measuring the production of carbohydrates 4) Measuring the increase in dry mass Photosynthesis is the process by which plants absorb light to produce glucose for themselves.
What is the difference between photosynthesis rate and net photosynthesis rate?
Photosynthesis rate or gross photosynthesis rate is the total rate of fixation of carbon (reduction of CO2) without taking into consideration the amount of CO2 lost during respiration. Net photosynthesis rate is the rate of carbon fixation after subtracting the ate of CO2 lost during the respiration.
What happens if rate of respiration is more than photosynthesis?
If the rate of respiration is higher than the rate of photosynthesis then the plant will be starving more because the higher rate of respiration leads to more consumption of the oxygen.
Which is faster photosynthesis or respiration?
In order to use the food they have made, plant cells must perform cellular respiration. Well, the rate of photosynthesis is usually faster than respiration, so a plant produces more oxygen than it needs for itself.
Is photosynthesis is a destructive process?
Respiration is a catabolic process (destructive) and Photosynthesis is a anabolic (constructive) process. In catabolic process bigger molecules are broken down into smaller molecules, like the glucose molecules are broken down into simpler units like water and Co2 as in respiration.
Why do plants have a respiration rate?
Fruit, vegetables and green plants all respire (plants also photosynthesize,which is the same chemical process but in reverse). Respiration uses oxygen and releases the energy stored in the plant’s carbohydrates – and this process produces both carbon dioxide and water.
Do plants take in oxygen at night?
Plants release oxygen during the day in the presence of natural light through the process of photosynthesis. While at night, the plants uptake oxygen and release carbon dioxide, which is called respiration.
Why do plants respire at night?
Plants respire during the night, plants release carbon dioxide and take in oxygen and oxidation of stored food by absorbed oxygen takes place. That’s why it’s mentioned that one should not sleep under a tree at night.
Do plants respire oxygen?
In the natural environment, plants produce their own food to survive. As with photosynthesis, plants get oxygen from the air through the stomata. Respiration takes place in the mitochondria of the cell in the presence of oxygen, which is called “aerobic respiration”.
Do plants respire yes or no?
Just like humans and other animals breathe by taking in oxygen and giving out carbon dioxide, plants do breathe. They release oxygen in the day time through photosynthesis and at night time, they release carbon dioxide and use oxygen.