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Electrons released as a result of photolysis ????????????? a. combine with H+ ions and oxygen to form water b. are used directly in the fixation of carbon during the Calvin cycle c. reduce photosystem I chlorophyll molec...
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Photon energy, captured by chlorophyll a, is transferred as chemical energy to a. carbon dioxide d. carotenoids b. glucose e. a series of hydrogen acceptors c. other chlorophylls
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When glucose undergoes combustion in the presence of air, it releases heat rapidly. In cellular respiration a. all of the energy is converted to ATP b. enzymes make the reaction take place in small steps c. water prevent...
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Anaerobic respiration is less efficient than aerobic respiration for which of the following reasons?
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Redox reactions involving Fe2+ and Fe3+ occur during aerobic cellular respiration. Where do these reactions take place?
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Imagine that an extraterrestrial life-form has been recovered from a meteorite by a deep space probe that has a ravenous appetite for sand. Your job is to come up with a preliminary analysis of its bioenergetic pathway....
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__e__ 1. (three marks) Of the following characteristics, which one is not true about enzymes? a. They are essential to the metabolism of cells for the conversion of energy. b. They function best at specific temperatures...
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The activity of an enzyme can be altered by changing the pH of its surroundings slightly. This change in pH works by a. causing the enzyme to precipitate b. masking its active site c. increasing the activation energy of...
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The activity of an enzyme can be altered by changing the pH of its surroundings slightly. This change in pH works by
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When a molecule of glycerol reacts with one or more fatty acids an ester linkage results. The formation of this linkage is a result of a reaction between
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The production, or synthesis, of proteins, fats, and carbohydrates involves the
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In this course you have seen that hydrogen, oxygen, nitrogen, and carbon form one, two, three, and four bonds, respectively. Explain why this pattern of bonding is seen with these elements.
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Construct a table to summarize the four major types of biochemical reactions studied in this course. For each type give the name, a word summary of what happens during the reaction, and an example of where the reaction m...
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Fe + Cl2  Fe2+ + 2 Cl- identify: a. what is being oxidized b. what is being reduced c. what is the oxidizing agent d. what is the reducing agent
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When one fat molecule is broken down to glycerol and fatty acids, the number of hydroxyl ions consumed in order to neutralize the fatty acids would be
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One of the ways organisms maintain a stable internal environment (homeostasis) is to use buffers to keep the pH of their body fluids within narrow limits. A biology student mixes 200 mL of a buffered solution with a pH o...
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By what factor would the concentration of hydrogen (hydronium) ions be decreased if the pH of a solution changed from 4.5 to 6.5? a. 2 d. 20 b. 5 e. 100 c. 10
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In garden pea plants, the round seed shape (R) is dominant over the wrinkled seed shape (r), and the purple flower (P) is dominant over the white flower (p). A heterozygous round seed purple (RrPp) pea plant is crossed w...
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In the garden pea plant, the gene for flower colour results in purple flowers or white flowers. Two heterozygous purple flowered garden pea plants (Pp) are crossed. Create a Punnett square to determine the genotype and p...
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In garden pea plants, the allele for inflated pod shape, I, is dominant over that for constricted pod shape, i. Consider a cross between a garden pea plant that is homozygous for inflated pod shape and a plant that is ho...
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A garden pea with a tall stem is crossed with a garden pea with a dwarf stem and produces offspring with tall stems. The offspring self-pollinate. Based on the results of Mendel’s experiments, out of 500 garden pea plant...
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For which genetic disorder is the mechanism of inheritance a recessive allele? alkaptonuria
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For which genetic disorder is the mechanism of inheritance a recessive allele?
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In garden pea plants, the allele for green pod colour, G, is dominant over that for yellow pod colour, g. Consider a cross between a garden pea plant that is homozygous for green pod colour and a plant that is homozygous...
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In garden pea plants, the allele for inflated pod shape, I, is dominant over that for constricted pod shape, i. Consider a cross between a garden pea plant that is homozygous for inflated pod shape and a plant that is ho...
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