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Photosynthesis

This category is for questions about the chemical process in which autotrophic organisms use sunlight, carbon dioxide and water to make glucose, water and oxygen. This process is vital to life and is of great importance in biology.

6,415 Questions

What substance is the byproduct of photosynthesis?

oxygen is the byproduct of photosynthesis because from water (H2O), sunlight and carbon dioxide (CO2) , they release oxygen to make glucose.

Does the Calvin cycle fix carbon dioxide?

Yes, the Calvin cycle is the process by which carbon dioxide is fixed into organic molecules during photosynthesis. The enzyme RuBisCO helps catalyze the fixation of carbon dioxide into ribulose-1,5-bisphosphate, leading to the production of carbohydrates.

How does photosynthesis and cellular respiration exemplify the laws of conservation of matter and thermodynamics?

6CO2 + 6H2O -> C6H12O6 + 6O2

The total mass on each side of the formula is the same (372), therefore mass has been conserved.

If you calculate the energy of the bonds on each side of the equation, and the energy given to the system by the light, energy should also be conserved.

What happens to photosynthesis if the water decreases?

The reaction for photosynthesis is:

6CO2 + 6H20 + Sunlight => C6H12O6 (glucose) + 6O2

6 molecules of Carbon dioxide and 6 molecules of Water are converted into 1 molecule of glucose sugar and 6 molecules of Oxygen.

This means that if there is either a shortage of water molecules or carbon dioxide molecules the reaction could only run so far before it ran out of "raw materials" to produce glucose and oxygen.

What is the source of carbon for respiration?

Sources of carbon dioxide are from the burning of fossil fuels from both cars and factories. Also, volcanic vents add a large amount of carbon dioxide to our atmosphere.

Do carnivorous plants produce food by photosynthesis?

Yes. Just as any plant does. Bugs act like fertilizer- grow SUPER fast. My plants still grow even if they have no bugs or no openings to catch bugs, so photosynthesis keeps them going.

Carnivorous plant feed on other organisms to get only Nitrogen. They should undergo photosynthesis to get carbon and energy

Why photosynthesis is important to human beings?

Plant is known for the only living organisms to produce their own food during photosynthesis. This process is very important because other animals who do not produce their own food feed on plants to get energy. Thus, plant is known as the producer and the animal that eats on plant is known as primary consumer.This energy is then transferred to the secondary consumer and so on. So basically photosynthesis is very important mainly because the food or energy it produce is one of the reason we survived.

How does air pollution reduce the rate of photosynthesis?

Harmful gases such as sulfur dioxide can block out light that is needed for photosynthesis. Air pollution dissolves with the water vapor in the atmosphere making the water acidic, which then forms acid rain. This harms the leaves of a plant, which reduces how well it can carry out the stage of photosynthesis slowing the rate down. Photosynthesis is an essential process within the ecosystem. Using sunlight, carbon dioxide and water, plants manufacture (make) food and energy in a chemical process which occurs in plant leaves.

How does the word chemo and synthesis relate to the meaning of the term chemosynthesis?

The word synthesis means to produce or generate something and the word chemo relates to something to chemicals and the term chemosynthesis refers to the production of energy by oxidization of chemicals.Hence the proposition.

How do sugars assemble during photosynthesis?

Glucose is made when H+ ions interact with carbon dioxide molecules. This is also known as the Calvin Benson cycle. When glucose is formed it may be converted to a disaccharide for transport eg. sucrose or it may be stored as starch in granules.

What occurs in plants and animals?

Plants use photosynthesis to convert sunlight into energy and produce oxygen, while animals rely on respiration to obtain energy from food and release carbon dioxide. Both plants and animals undergo various processes to maintain homeostasis, reproduce, and grow.

What disrupts cellular respiration?

Cellular Respiration is a three step process; Glycolysis, the Krebs Cycle, and the Electron Transport Chain. Effective cellular respiration is an aerobic cycle, meaning that it requires oxygen. The first step, glycolysis, is an anaerobic process, meaning it does not require oxygen. Therefore, glycolysis is always able to take place. The next step is the Krebs Cycle. This is an aerobic process and does not take place in the absence of oxygen. If there is an absence of oxygen, bodily toxins such as ethyl alcohol and lactic acid are produced and cellular respiration is not carried out. To answer your question, a lack of oxygen is what disrupts cellular respiration.

How many groups of reactions take occur in the process of photosynthesis?

Photosynthesis consists of two main groups of reactions: the light-dependent reactions and the light-independent reactions (Calvin cycle). The light-dependent reactions convert light energy into chemical energy in the form of ATP and NADPH, while the Calvin cycle uses these energy carriers to convert carbon dioxide into glucose.

What use light to create chemical energy and produce ATP?

Plants use light energy to convert carbon dioxide and water into glucose in a process called photosynthesis. This conversion of light energy into chemical energy allows plants to produce ATP, which is used as a source of energy for cellular processes.

Does cellular respiration take in energy?

In order for cellular respiration to begin, two ATP molecules must be used up in order to breakdown the glucose molecule. Fortunately, the net gain of ATP from the first stage of cellular respiration, glycolysis, is 2 ATP. So even if oxygen is not present and fermentation has to occur, ATP is still made and not lost. However, if cellular respiration proceeds to the Krebs Cycle and carries out it's desired function, then a net gain of 36 ATP molecules will be made.

What 's the difference between two types of respiration?

Aerobic respiration requires oxygen to break down glucose into energy, while anaerobic respiration does not require oxygen and produces lactic acid or alcohol as byproducts. Aerobic respiration generates more ATP compared to anaerobic respiration.

Explain why chocolate melt but rock does not?

Chocolate can melt faster, because chocolate less force on them. and the other hand the rock has more force holding it's particles together so that means that the chocolate can melt faster than the rock. by the way the rock can melt, but it needs a high temp.

CO2 plus H2O -- and get C6H12O6 plus O2?

This is the formula for photosynthesis, the process by which plants convert carbon dioxide (CO2) and water (H2O) into glucose (C6H12O6) and oxygen (O2) using light energy. This process is essential for plants to produce their own food and release oxygen into the atmosphere as a byproduct.

How do the processes of photosynthesis and cellular respiration work togther?

Photosynthesis and cellular respiration are interconnected processes in living organisms. During photosynthesis, plants use sunlight to convert carbon dioxide and water into glucose and oxygen. This glucose is then used in cellular respiration by plants and animals to produce energy in the form of ATP, releasing carbon dioxide and water as byproducts which can be used in photosynthesis. This interdependence between the two processes demonstrates a continual cycle of energy and matter within ecosystems.

What is a biological cayalyst?

A biological catalyst is a substance, usually a protein (such as an enzyme), that increases the rate of a biochemical reaction without being consumed in the process. It lowers the activation energy required for the reaction to occur, making the reaction proceed more quickly.

What is produced because of the glycolysis reaction?

The first stage of cellular respiration is glycolysis. It is an anaerobic process that is initiated by 2 ATP molecules and a glucose molecule. The end products are 2 NADH molecules, 2 molecules of pyruvic acid, and a net gain of 2 ATP molecules.

Which organelle participates in the Calvin cycle?

The chloroplast is the organelle that participates in the Calvin cycle. Within the chloroplast, the stroma is where the Calvin cycle takes place.

What is the advantage to porphyra of having the accessory pigment phycoerythrin?

The accessory pigment phycoerythrin allows porphyra to absorb light more efficiently in deeper waters where blue and green light is less available. This gives porphyra an advantage in photosynthesis and allows it to thrive in environments where other organisms may struggle to obtain enough light for energy production.

Which hormonal dysfunction of a woman with excessive body hair and a deep voice shows the outward symptoms?

The hormonal dysfunction that could cause excessive body hair and a deep voice in women is known as polycystic ovary syndrome (PCOS). PCOS is a common endocrine disorder characterized by hormonal imbalances, particularly high levels of androgens (male hormones), which can lead to hirsutism (excessive hair growth) and changes in vocal pitch. Other symptoms of PCOS may include irregular periods, acne, and weight gain.

What is water's role in the light reaction of photosynthesis?

Water is split during the light reaction of photosynthesis to provide electrons for the photosystem II complex. This process releases oxygen as a byproduct. The electrons from water are then used to generate ATP and NADPH, which are crucial for the Calvin cycle.