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4. changing of stored chemical energy in food molecules to a form usable by organisms
Oxygen enters the lungs to be picked up by the erythrocytes; carbon dioxide exits the mouth as a waste product.
If you increase the temperature you give the particles more kinetic energy and diffusion occurs faster.If you stir a substance you give the particles more kinetic energy and diffusion occurs faster.If you increase the concentration gradient there are more particle per unit area bouncing off of one another and diffusion occurs faster.
ATP molecules release their third phosphate group in the reaction ATP --> ADP + P + Energy. The energy stored between the second and third phosphate groups is released and used by the cell to do work, such as pumping molecules across the cell membrane.
A cell does not burn up as it releases energy from organic molecules because the temperature at which metabolism occurs is the normal body temperature. This is an important component of the temperature-control mechanism of organisms.
Mitochondria.
Mitochondria.
The breaking down of some complex molecules, such as polymers, occurs through a process known as hydrolysis.Hydrolysis takes place in the presence of water containing an acid or a base as catalyst. The water causes polymers to breakdown to monomers. Hydrolysis reactions break bonds and release energy.
The breaking down of some complex molecules, such as polymers, occurs through a process known as hydrolysis.Hydrolysis takes place in the presence of water containing an acid or a base as catalyst. The water causes polymers to breakdown to monomers. Hydrolysis reactions break bonds and release energy.
fusion
Cellular respiration release chemical energy from sugars and other carbon-based molecules to make ATP when oxygen is present. Cellular respiration is an aerobic process, meaning that it needs oxygen to take place.
Conduction
Conduction
energy transfer occurs due to random collision of different molecules of the objects with each other,if the objects are of equal energy,there will be no detectable heat transfer,as molecules have same energy,but in between the objects having different heats the energy transfer occurs,due to the random collision of molecules with each other.
When atoms combine at the level of the electron shell, you get molecules. If the combination occurs at the nuclear level, you get nuclear fusion and the release of lots of energy.
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This is the process of photosynthesis and occurs in the chloroplasts.