Cell Energy Worksheet - Cellular respiration

Topics: Photosynthesis, Adenosine triphosphate, Cellular respiration Pages: 4 (1020 words) Published: July 13, 2012
Associate Program Material

Cell Energy Worksheet

Answer the following questions:

Cellular respiration:

• What is cellular respiration and what are its three stages? Cellular respiration is the set of the metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products. The reactions involved in respiration are catabolic reactions that involve the redox reaction (oxidation of one molecule and the reduction of another. Respiration is one of the key ways a cell gains useful energy to fuel cellular changes. The three stages of memory are sensory (immediate), short-term, and long-term memory.

• What is the role of glycolysis? Include the reactants and the products. Where does it occur? They are used to raise the energy content of the reactants in the first and third steps of glycolysis (glucose-6-phosphate and fructose-1,6-diphosphate). Chemical reactions proceed more "easily" when they go from a high-energy state to a lower-energy state. Another way of saying it that they become "more reactive," since the ATPs are supplying the activation energy for the reactions.

• What is the role of the citric acid cycle? Include the reactants and the products. Where does it occur? They both are the same. It does not matter which one you pick. Both represent the same substance, citric acid. The only difference is that for H3C6H5O7, the H's are separated. If you simplify the equation by adding up the H's, then your answer will be C6H8O7. Light reactions take place on the thykaloid membranes of the chloroplast. Light reaction requires light and water, and produces ATP and Oxygen. Dark reactions take place in the stroma (fluid that fills the chloroplast. It uses the ATP produced in light reactions to make glucose.

• What is the role of the electron transport system? Include the reactants and the...
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