Physics Test 2

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 Question Bank and Paper

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Chemistry Final Exams Question Bank and answers

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1. Common pathway for both aerobic and anaerobic respiration The common pathway for aerobic and anaerobic respiration is glycolysis . Glycolysis occurs in the cytoplasm of the cell . It is the first stage of cellular respiration . In this process glucose (6-carbon compound) is broken down. It forms two molecules of pyruvic acid (3-carbon compound) . A small amount of ATP energy is produced . Two molecules of ATP are formed in this process. NADH molecules are also produced. Glycolysis does not require oxygen . Therefore it acts as the common pathway for both types of respiration . 2. Organism showing protonephridia Protonephridia are excretory structures. They are commonly found in flatworms . A common example is Planaria . Protonephridia consist of flame cells . Flame cells contain beating cilia . The cilia create a current of fluid movement . They remove nitrogenous waste products . They also maintain water balance in the body . These structures open to the outside through excretor...
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