Answers_to_practice_questions_Ch15 - Answers to practice...

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Answers to practice questions, Chapter 15 1. b 2. a 3. A photosynthesis = chloroplast B. transcription = nucleus C. oxidative phosphorylation = mitochondrion D. modification of secreted proteins = Golgi apparatus and rough endoplasmic reticulum (ER) E. steroid hormone synthesis = smooth ER F. degradation of worn-out organelles = lysosome G. new membrane synthesis = ER H. breakdown of lipids and toxic molecules = peroxisome 4. 5. c 6. A genome, a double membrane, ribosomes, and proteins similar to those found in bacteria are evidence for an organelle’s having evolved from an engulfed bacterium like mitochondria or chloroplasts. 7. endoplasmic reticulum, amino acid sequence, folded, sorting signal, transport vesicles, protein translocators, unfolded 8. d 9. A. The protein will be transported into the ER lumen. B. The new signal sequence will not be recognized and the protein will stay in the cytosol. C. The protein will be transported into the ER. It is the hydrophobicity of amino acids that is important, not the particular sequence. D.
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This note was uploaded on 11/21/2011 for the course PCB 3134 taught by Professor Multiple during the Fall '08 term at University of Florida.

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Answers_to_practice_questions_Ch15 - Answers to practice...

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