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Why do plants and animals need oxygen?
Plants and animals need oxygen for cellular respiration, which is the process involving the breakdown of glucose to produce energy. In plants, this energy is used for growth, while in animals, it is used for various metabolic processes and to support bodily functions. Oxygen is a crucial component in this process as it serves as the final electron acceptor in the electron transport chain, ultimately generating ATP, the energy currency of cells.
What does a placenta do in a horse?
In horses, the placenta serves as the connection between the mare and foal, providing nutrition and oxygen to the developing fetus and removing waste products. It also acts as a protective barrier, preventing the mare's immune system from rejecting the foal.
How can the oxygen store in myoglobin be replaced after use?
Myoglobin has a very high affinity for oxygen, meaning it binds it very strongly. At very low oxygen concentrations in the cell, myoglobin releases its oxygen, despite the high affinity, simply because there are too few oxygen molecules around to rebind to the myoglobin when they are released naturally from the myoglobin (which usually occurs anyway). Once the oxygen concentration increases again, returning to normal, oxygen molecules will collide with myoglobin. The myoglobin, with its high oxygen affinity, will strongly bind any oxygen that meets it, replenishing myoglobin's oxygen storage very quickly. As myoglobin's affinity for oxygen is stronger the haemoglobin's, it will 'steal' oxygen from haemoglobin in the blood very easily, replacing its bound oxygen. This binding system serves to release oxygen when it is needed if blood oxygen levels are reduced (due to high levels of exercise), but replenishes the supply when oxygen levels begin to rise again.
What does photothynsesis mean?
Photosynthesis is the process by which green plants, algae, and some bacteria use sunlight to synthesize foods from carbon dioxide and water. It is a vital process for life on Earth as it produces oxygen and serves as the foundation of the food chain.
Is yawning a reflex?
Yes, yawning is considered both a physiological and psychological reflex. It serves multiple purposes, such as increasing oxygen intake and cooling the brain, and can be triggered by various factors, including tiredness, boredom, or seeing someone else yawn.
Hydrogen serves as the final electron acceptor of the electrons transport chain true or false?
False. Oxygen serves as the final electron acceptor of the electron transport chain.
Does the hydrogen serve as the final electron acceptor of the electron transport chain?
Oxygen is the final electron acceptor of the electron transfer chain. Hydrogen ( protons ) come down their concentration gradient and through the ATP sythase making ATP. Then they, with the electrons oxygen accepts, become H2O.
What gas serves as the final acceptor of electrons in the?
If you mean what gas serves as the final acceptor of electrons in the [process of aerobic respiration], the answer is oxygen.
Who does water form during cellular respiration?
Water is formed as a byproduct during cellular respiration. During the electron transport chain, oxygen serves as the final electron acceptor and combines with hydrogen ions to form water. This process generates energy in the form of ATP for the cell to utilize.
Does NAD serve as an oxygen acceptor a coenzyme a waste product an end product or an acid acceptor in cell respiration?
NAD is a coenzyme.Its role is as a hydrogen acceptor when it is involved in the oxidation of glucose (cell respiration). Is is written as NAD+, and after accepting hydrogen it becomes the reduced form, NADH.NADH in turn acts as a hydrogen donor when it becomes oxidized to reform NAD+.
What is carbon dioxide hydrogen and oxygen used for in leaves?
In leaves, carbon dioxide is used in photosynthesis to produce glucose, which serves as energy for the plant. Hydrogen is used in the synthesis of carbohydrates and other molecules, while oxygen is a byproduct of photosynthesis and is released into the atmosphere.
What is the role of food water and oxygen in the creation of ATP?
Food provides the necessary nutrients for cellular respiration, where glucose is broken down to produce ATP. Oxygen is used as the final electron acceptor in the electron transport chain, allowing for efficient production of ATP. Water is a byproduct of cellular respiration and helps facilitate metabolic reactions within cells.
What participant in the electron transport chain has the greatest attraction for electrons?
Oxygen has the greatest attraction for electrons in the electron transport chain. It serves as the final electron acceptor, leading to the formation of water.
Cellular respiration cannot occur without the presence of what molecule?
Oxygen. Oxygen is necessary for cellular respiration to occur because it serves as the final electron acceptor in the electron transport chain, allowing for the production of ATP.
Is oxygen a substrate?
No, oxygen is not considered a substrate. In biological terms, a substrate is the molecule upon which an enzyme acts to catalyze a chemical reaction. Oxygen is often a reactant in biochemical reactions, such as cellular respiration where it serves as the final electron acceptor.
What is the process in which NADH transfers electrons to oxygen?
The process by which NADH transfers electrons to oxygen is called oxidative phosphorylation. This process occurs in the mitochondria and involves a series of protein complexes known as the electron transport chain. As electrons are passed along the chain, they eventually reach oxygen, which serves as the final electron acceptor, producing water as a byproduct. This process generates ATP, the cell's main energy source.
What does oxygen become in cellular respiration?
Oxygen is converted into water during cellular respiration. This process involves a series of chemical reactions that break down glucose to produce energy, carbon dioxide, and water. Oxygen serves as the final electron acceptor in the electron transport chain, where it combines with hydrogen ions to form water.
