BS111 MidTermIII_A - Name: _ Date: _ FORM A 1. The Z scheme...

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Name: __________________________ Date: _____________ FORM A 1. The Z scheme is A) the characteristic path of electrons when both photosystems are utilized for the production of ATP and NADPH + H + . B) the characteristic path of electrons when only photosystem II is involved and only ATP is made. C) the addition of CO 2 to RuBP to form a six-carbon sugar. D) the passing of high energy electrons through ATP synthase. 2. In cyclic photophosphorylation, electrons cycle back to ________ and no ________ is made. A) PQ (plastoquinone); CO 2 B) water; oxygen C) ATP ;NADH D) Photosystem I ; NADPH + H + E) None of the above 3. Before the discovery of DNA, the hereditary material was thought to be made of proteins and not nucleic acids because A) nucleic acids are made up of 20 different bases, whereas proteins are made up of only 5 amino acids. B) protein subunits can combine to form larger proteins. C) proteins seemed to be much more chemically diverse. D) proteins can be enzymes. E) None of the above 4. How does RNA differ from DNA? A) RNA contains uracil instead of thymine and it is usually single-stranded. B) RNA contains uracil instead of thymine and it is usually double-stranded in a helical tertiary structure. C) RNA contains thymine instead of uracil and it is usually single-stranded. D) None of the above 5. Eukaryotes only have one origin of replication. A) True B) False Page 1
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6. Information sources used by Watson and Crick to determine the structure of DNA included material from Dr. Franklin which was A) electron micrographs of individual DNA molecules. B) light micrographs of bacteriophage particles. C) light micrographs of individual bacteria chromosomes. D) X-ray crystallography of double-stranded DNA. 7. Promoters are made of A) proteins. B) carbohydrates. C) lipids. D) nucleic acids. E) amino acids. 8. Which of the following molecules transfers hereditary information from the nucleus to the cytoplasm? A) DNA B) mRNA C) tRNA D) Proteins E) Lipids 9. The stop codons terminate protein synthesis and code for A) no amino acid. B) methionine. C) glycine. D) DNA binding protein. 10. Semiconservative replication of DNA involves A) each of the original (parent) strands acting as a template for a new strand. B) only one of the original (parent) strands acting as a template for both daughter (new) strands. C) the complete separation of the original (parent) strands, the synthesis of daughter (new) strands, and the reassembly of the original (parent) double-stranded molecules. D) None of the above Page 2
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11. Transcription is the process of A) synthesizing a DNA molecule from an RNA template. B) assembling ribonucleoside triphosphates into an RNA molecule without a template. C)
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BS111 MidTermIII_A - Name: _ Date: _ FORM A 1. The Z scheme...

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