How can some organisms survive without sunlight?
Some organisms, such as certain bacteria and fungi, are able to survive without sunlight by obtaining energy from alternative sources, such as chemicals or organic matter. These organisms engage in processes like chemosynthesis or fermentation to generate energy. Additionally, some organisms have adapted to low-light environments and developed mechanisms to efficiently use available light energy.
Photosynthesis and respiration keep levels of oxygen and CO2 at equilibrium?
Photosynthesis occurs in plants and some bacteria. It occurs within the chloroplasts. It uses H2O, Light energy and CO2 and gives off O2 and glucose. Respiration occurs in plants and animals. It occurs within the mitochondria. It uses O2 and glucose to produce energy, CO2 and H2O
What are the carbon fixing reactions that occur in photosynthesis called?
The carbon fixing reactions in photosynthesis are called the Calvin cycle or the light-independent reactions. In this process, carbon dioxide is converted into organic molecules with the help of ATP and NADPH produced during the light-dependent reactions.
What are photosynthesis and respiration components of?
Mitochondria are needed for cellular respiration however photosynthesis uses chloroplasts. Photosynthesis uses sunlight (chloroplasts) + CO2 and water to make glucose and O2. The mitochondria use the O2 and glucose to make ATP and heat plus CO2 and water.
Photosynthesis requires many steps to make glucose?
Yes, photosynthesis is a complex process that involves multiple steps. It begins with capturing sunlight and involves the conversion of water and carbon dioxide into glucose and oxygen through a series of chemical reactions in chloroplasts. Each step is crucial for the overall production of glucose, which serves as a source of energy for the plant.
What is the most important product of the dark reaction?
The most important product of the dark reaction, also known as the Calvin cycle, is glucose. This process takes place in the stroma of chloroplasts and utilizes ATP and NADPH produced during the light-dependent reactions to convert carbon dioxide into glucose for energy storage and other cellular processes.
The six molecules of G3P formed from three turns of the Calvin cycle are converted into?
Five molecules of glyceraldehyde -3 -phosphate are converted to 3 molecules of ribulose-1,5- bisphosphate. One molecule of glyceraldehyde -3 -phosphate may be converted to a hexose sugar such as fructose -1-phosphate or glucose -1- phosphate. The G3P molecule can be used for synthesis of cellulose, amino acids or fatty acids.
Do snails go through photosynthesis?
No, snails do not go through photosynthesis. Photosynthesis is a process unique to plants and some bacteria, where sunlight is converted into energy. Snails are heterotrophic organisms that obtain their energy by consuming other organisms or organic matter.
The Calvin cycle, also known as the light-independent reactions, is the metabolic pathway of photosynthesis in which carbon dioxide is converted into glucose using ATP. This process occurs in the stroma of the chloroplasts.
What does a pollen grain and ovule each contain?
Pollen grains contain the male gametes required for sexual reproduction of a plant/ flower. These are haploid, and only contain half the full set of chromosomes; the other half is contributed by the female gamete (or ovule).
A grain of pollen contains:
The pollen grain "germinates" on the stigma of the receptive flower and grows down the style, once it reaches the ovule the germ cell/ nucleus fuses with the nucleus of the ovule and an embryo is formed
Sexphobia refers to an irrational fear, aversion, or discomfort towards discussions or expressions related to sex or sexuality. It can manifest as a fear of sexual acts, shame around one's own sexuality, or discomfort with sexual topics in conversation or media. Therapy and education can help individuals address and overcome sexphobia.
A protozoan that can conduct photosynthesis is the?
Euglena is a protozoan that is capable of conducting photosynthesis. It contains chlorophyll pigments that enable it to produce energy from sunlight.
What happens to organisms that use photosynthesis do not get sunlight?
Organisms that rely on photosynthesis for energy will not be able to produce glucose, their main energy source, without sunlight. As a result, they will not be able to grow, reproduce, or carry out essential metabolic processes, eventually leading to a decline in their health and possibly death.
Phloem is a type of vascular tissue in plants that transports food (sugars) produced during photosynthesis from the leaves to other parts of the plant. Xylem is another type of vascular tissue in plants that transports water and minerals from the roots to the rest of the plant. Together, phloem and xylem make up the plant's vascular system, allowing for the efficient distribution of nutrients and water throughout the plant.
The meaning of respiration and photosynthesis?
Respiration is the process in which cells break down glucose to release energy, usually in the form of ATP, while using oxygen and producing carbon dioxide as a byproduct. Photosynthesis is the process in which plants use sunlight to convert carbon dioxide and water into glucose, storing energy in the form of carbohydrates and releasing oxygen as a byproduct.
The enzyme that initiates the fixation of carbon in the Calvin cycle is called ribulose-1,5-bisphosphate carboxylase/oxygenase, commonly known as RuBisCO. It is considered the most abundant protein in the world due to its crucial role in converting carbon dioxide into organic compounds during photosynthesis.
Difference between organic and inorganic matter?
Organic matter contains carbon and is derived from living organisms or their byproducts, like plants or animals. Inorganic matter, on the other hand, lacks carbon and originates from non-living sources, such as minerals or water. Organic matter is generally more complex in structure and prone to decomposition, while inorganic matter is typically simpler and more stable.
How do photosynthesis and chemistry relate?
Well, photosynthesis is a chemical reaction!
Light from the sun causes the plant to photosynthesise to produce glucose as can be seen from this equation:
CO2(g) + H20(l) + Light -----> C6H12O6(aq) + O2(g)
As we can see, 2 new products were formed (glucose and oxygen) which makes this a chemical reaction
What kind of energy is light converted into during photosynthesis?
Chemical and Biochemical Energy. Light of the right wavelength helps a specialized enzyme (used to be called the Q enzyme 10 years ago) in plants add a single phosphorus atom plus four oxygen atoms - The Phosphate Moiety - to ADP (adenosine-di-phosphate) to become ATP (adenosine-tri-phosphate). The resulting ATP molecule has more chemical energy and is involved in many of the Cells activities.
When is carbon dioxide released in cellular respiration?
In anaerobic respiration CO2 is release in fermentation (in cytoplasm) but never during glycolysis. Also. It isnot formed during lactic acid fermentation. Only 2CO2 are formed per glucose molecule in fermentation.
In aerobic respiration, total 6Co2 molecules are generated per glucose molecule. 2Co2 during transition reaction i.e. during oxidative decarboxylation of pyruvate to acetyl CoA in mitochondrial matrix. And remaining 4Co2 are formed during Kreb's cycle. 2Co2 are released between the conversion of oxalosuccinate to alpha keto glutarate and other 2Co2 from oxidative decarboxylation of alpha keto glutarete to alpha keto glutarate.
What substances come from the outside of photosynthesis?
sunlight is the substance that comes in from the outside
What is the purpose of oxygen in photosynthesis?
Oxygen produced during photosynthesis is a byproduct of the light-dependent reactions. It is released into the atmosphere and is essential for the survival of most living organisms, as it is used in cellular respiration to generate ATP, the energy currency of cells.
Why leaf is an ideal organ of photosynthesis?
because the leaf has a layer of palisade cells near the surface, palisade cells are fullof chloroplasts which are in turn, fullof chlorophyll. the chlorophyll turns the sun's energy into carbohydrates, these carbohydrates can be used as glucose, for energy, starch for storage, or, nitrates can be added to the carbohydrates to make protein for the plants growth. nitrates come from the soil.
What is the cluster of light harvesting complexes in a thylakoid?
The cluster of light harvesting complexes in a thylakoid is called a photosystem. It consists of chlorophyll molecules and other pigments that absorb light energy and transfer it to reaction centers where photosynthesis takes place. Photosystem I and Photosystem II are the two main types found in the thylakoid membrane.