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What is photoactivation of chlorophyll?
The initial stage of [[photosynthesis in [[chlorophyll Molecules where the presence of [[light Energy raises the energy. It is the first event int he first phase of photosynthesis which is light-dependent reactions.it happens at the thykaloid. Chlorophyll molecules capture light energy and becomes energized electrons(e-).
The energy in food molecules such as glucose is converted into what?
The energy in food molecules, such as glucose, is converted into ATP (adenosine triphosphate) through the process of cellular respiration. ATP is the primary energy currency of the cell, providing energy for various cellular functions.
In glycolysis the first few steps require energy from two ATP molecules. The net gain of ATP molecules at the end of this pathway is?
The net gain of ATP molecules at the end of glycolysis is 2 ATP molecules. While 2 ATP molecules are consumed in the initial steps, a total of 4 ATP molecules are produced, resulting in a net gain of 2 ATP molecules.
According to the heterotroph hypothesis what contribution did ultraviolet light heat and lightning make to the formation of the first organic molecules?
Ultraviolet light, heat, and lightning in the primitive Earth's environment were believed to have provided the energy necessary to drive chemical reactions leading to the formation of organic molecules from simple inorganic compounds. These energy sources could have facilitated the synthesis of molecules like amino acids and nucleotides, which are essential building blocks of life.
What came first in evolution cellular respiration or photosynthesis?
Cellular respiration likely evolved before photosynthesis. Early prokaryotic organisms likely developed cellular respiration to generate energy from organic molecules. Photosynthesis evolved later in some prokaryotic organisms as a way to use sunlight to make energy.
What is The first stage of the breakdown of sugar molecules for energy?
The first stage of the breakdown of sugar molecules for energy is glycolysis. During glycolysis, a molecule of glucose is broken down into two molecules of pyruvate, producing a small amount of ATP and NADH in the process.
Do water molecules with highest energy evaporate first?
Yes, water molecules with the highest energy are more likely to evaporate first compared to lower-energy molecules. This is because they have enough energy to overcome the attractive forces holding them in the liquid state and transition to the gaseous state.
What potential energy does fossil fuel?
first of all thermal energy does not move it actcually gains molecules
Why is water cooler after evaporation?
Water is cooler after evaporation because the molecules with higher kinetic energy are the first to escape into the air, leaving behind molecules with lower average kinetic energy. This decreases the average energy of the remaining water molecules, resulting in a lower temperature.
The average kinetic energy of the molecules in an object is what law of thermodynamics?
The average kinetic energy of molecules in an object is governed by the first law of thermodynamics, which states that energy cannot be created or destroyed, only transferred or transformed. This is because the kinetic energy of molecules is a form of internal energy that is included in the total energy of the system.
What is the first thing that must occur for two molecules to react with one another?
The two molecules must collide with the correct orientation and with a minimum amount of energy (called the activation energy).
What happens to thermal energy after its use?
It is changed into a different form of energy as it cannot be destroyed (First law of thermodynamics) usually kinetic energy of the molecules
What are two chemical reactions that are necessary to give cell energy?
This energy is derived from the chemical bond energy in food molecules, which thereby serve as fuel for cells. The first step is the enzymatic breakdown of food molecules in digestion, and the second step that converts glucose molecules is called glycolysis.
What is photoactivation of chlorophyll?
The initial stage of [[photosynthesis in [[chlorophyll Molecules where the presence of [[light Energy raises the energy. It is the first event int he first phase of photosynthesis which is light-dependent reactions.it happens at the thykaloid. Chlorophyll molecules capture light energy and becomes energized electrons(e-).
Do gas molecules have more kinetic energy with altitude?
The kinetic energy of molecules depends on the temperature. At first this decreases with altitude, and therefore so does kinetic energy, but then the relationship with height becomes very complex. A search for 'temperature profile of the atmosphere' will give you more details.
Energy used in the formation of the first organic molecules is thought to have come from?
Organic molecules form out in nature all the time by various energy sources. Organic molecules (such as amino acids and nucleobases) are found in meteorites, and many organic molecules (sugars) are found even in interstellar space.
What is the energy of a photon first use to do in photosynthesis?
In photosynthesis, the energy of a photon is first used to excite electrons in chlorophyll molecules within the chloroplasts of plant cells. This energy absorption initiates the process of converting light energy into chemical energy, leading to the formation of ATP and NADPH during the light-dependent reactions. These energy-rich molecules are then utilized in the subsequent light-independent reactions (Calvin cycle) to synthesize glucose from carbon dioxide.
