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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 happens to the carbon atom when transitioning between photosynthesis and respiration?

During photosynthesis, carbon atoms are incorporated into organic molecules like glucose. In respiration, these organic molecules are broken down to release energy, and the carbon atoms are ultimately converted back into carbon dioxide and released into the atmosphere.

Which color of light is used most in photosynthesis?

Red color light spectrum

Red-orange and blue-violet
Red and blue
Green is reflected but all other colors are absorbed during phoyosynthesis.

What occurs in all eukaryotic cells if photosynthesis only occurs in plants?

In all eukaryotic cells, mitochondria carry out cellular respiration to produce energy in the form of ATP. Unlike photosynthesis, which occurs in plant cells with chloroplasts, cellular respiration is a process common to all eukaryotic cells for generating energy by breaking down glucose using oxygen.

What pigment is stored in the chloroplast that allows photosynthesis to take place?

Chlorophyll is the pigment stored in the chloroplast that absorbs light energy and initiates the process of photosynthesis. It is responsible for capturing light energy and converting it into chemical energy through the process of photosynthesis.

What are carbons in photosynthesis used for?

Carbons in photosynthesis are used to produce organic molecules, such as glucose, which serve as energy sources for plants. During photosynthesis, carbon dioxide is converted into carbohydrates using the energy from sunlight. These carbohydrate molecules are essential for the growth and development of plants.

What is the main organelle used in cellular respiration?

The main organelle used in cellular respiration is the mitochondrion. Mitochondria are known as the powerhouse of the cell because they generate ATP, the energy currency of the cell, through the process of cellular respiration.

During photosynthesis what causes electrons to flow from water to NADP plus?

During photosynthesis, light energy is absorbed by chlorophyll in the thylakoid membrane of the chloroplast. This energy excites electrons in Photosystem II, causing them to flow down an electron transport chain that eventually leads to the reduction of NADP+ to NADPH, along with the generation of ATP.

Where does extra oxygen go after photosynthesis?

I'm not sure what you mean by 'leftover' as oxygen is one of the products of photosynthesis. If photosynthesis is happening slowly, the plant cell may use all the oxygen for respiration, but in bright light when photosynthesis is rapid, the excess oxygen diffuses out into the air.

What is the main overall product of the dark reactions of photosynthesis?

The main overall product of the dark reactions of photosynthesis is glucose. These reactions, also known as the Calvin cycle, use the energy from ATP and NADPH produced during the light reactions to convert carbon dioxide into glucose through a series of chemical reactions.

Where does photosynthesis occur within a plant?

Plants. The actual chemical processes, however, are conducted in specialized organelles called chloroplasts. Some reactions spill over into the cytoplasm, but those are specific cycles. Most of photosynthesis is associated with the chloroplasts.

What are the things that makeup photosynthesis?

Photosynthesis is the process of converting light energy to chemical energy and storing it in the bonds of sugar. This process occurs in plants and some algae (Kingdom Protista). Plants need only light energy, CO 2 , and H 2 O to make sugar. The process of photosynthesis takes place in the chloroplasts, specifically using chlorophyll,the green pigment involved in photosynthesis.

What two things would happen to animals if there was no photosynthesis?

If there was no photosynthesis, animals would have reduced food supply as plants would not produce glucose for energy. Additionally, oxygen levels would decrease as there would be no photosynthetic organisms releasing oxygen as a byproduct.

What rays of sunlight are mostly utilized by chlorophyll in photosynthesis?

Chlorophyll mainly absorbs blue and red wavelengths of sunlight for photosynthesis. These wavelengths are most efficient for driving the process of photosynthesis in plants. Green wavelengths are not absorbed well by chlorophyll, which is why plants appear green.

How is carbon dioxide and oxygen exchanged during photosynthesis and respiration?

The plant needs carbon dioxide to grow. When it has enough carbon dioxide sunlight (energy) and water, it makes little sugars. When the plant uses the sugar for energy the sugars break open letting out oxygen. The oxygen goes up the stem into the leaves and the leaves lets out your oxygen. So on goes the process

What causes decrease in photosynthesis?

Factors that can decrease photosynthesis include insufficient sunlight, low levels of carbon dioxide, high temperatures that denature enzymes, water stress leading to stomatal closure, and nutrient deficiencies affecting chlorophyll production.

What would happen If a plant were placed in continuous light?

If a plant is placed in continuous light without any period of darkness, it can disrupt its natural growth and blooming cycles. The plant may become stressed and not be able to photosynthesize effectively, leading to potential damage or reduced health. It is important for plants to have a balance of light and darkness to thrive.

What gas is released during bonfire?

During a bonfire, carbon dioxide (CO2), water vapor (H2O), and smoke are the main gases released. Smoke is made up of a mixture of gases, particles, and other substances that are produced when organic matter burns.

Can cellular respiration happen without photosynthesis?

Yes, cellular respiration can occur without photosynthesis. Cellular respiration is the process by which cells generate energy from food molecules, while photosynthesis is the process by which plants convert sunlight into energy. Organisms like animals rely on cellular respiration to produce energy without needing photosynthesis.

What formula represents the food energy made by plants?

The food energy made by plants is represented by the formula for photosynthesis: 6CO2 + 6H2O + light energy -> C6H12O6 + 6O2. This formula shows how plants convert carbon dioxide and water into glucose and oxygen using light energy.

Does a Stomata control opening and closing of the openings in the leaf?

Yes, stomata control the opening and closing of the openings in the leaf. They regulate gas exchange by opening to allow for the intake of carbon dioxide and the release of oxygen during photosynthesis, and closing to reduce water loss through transpiration.

Which two terms are things are found in the chloroplast?

Chlorophyll and thylakoid membranes are found in the chloroplast. Chlorophyll is a pigment that absorbs light for photosynthesis, while thylakoid membranes contain the photosystems that carry out the light-dependent reactions of photosynthesis.

What does photo means in photo synthesis?

"Photo" in photosynthesis refers to light energy. During photosynthesis, plants use light energy from the sun to convert carbon dioxide and water into glucose and oxygen through a series of chemical reactions.

Why is starch an indirect measurement of photosynthesis?

Starch is a plants way of storing energy, why it is not a way of measurement as starch levels is determined by how much extra light, once the plant receives enough light it will turn glucose into starch.

Starch levels however could be used for the opposite, by measuring starch & glucose you can work out the rate of respiration, just not photosynthesis.

Why does photosynthesis matter?

Photosynthesis is essential because it is the process by which green plants and other organisms convert light energy into chemical energy in the form of glucose. This provides the energy needed for the plant to grow and survive. Additionally, photosynthesis plays a crucial role in the production of oxygen, which is essential for the survival of most living organisms on Earth.

What does not stimulate the opening of stomata?

Factors that do not stimulate the opening of stomata include low light intensity, high levels of carbon dioxide, and water stress. These conditions typically result in stomatal closure to prevent excessive water loss by transpiration and maintain plant water balance.