Prescott's Microbiology
11th Edition
ISBN: 9781260211887
Author: WILLEY, Sandman, Wood
Publisher: McGraw Hill
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Chapter 5.6, Problem 1CC
Describe the structure of aerobic mitochondria, hydrogenosomes, and chloroplasts. Where are the different components of mitochondria and chloroplast energy-trapping systems located?
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Outline the structures and general functions of mitochondria andchloroplasts.
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In the image below of a region of the mitochondria, which region would have the highest concentration of hydrogen ions?
Choose one from the following:
(a) A
(b) B
Chapter 5 Solutions
Prescott's Microbiology
Ch. 5.1 - MICRO INQUIRY In addition to separating each...Ch. 5.3 - MICRO INQUIRY Which cytoskeletal filament is made...Ch. 5.3 - Prob. 1CCCh. 5.3 - Prob. 2CCCh. 5.3 - Prob. 3CCCh. 5.4 - Prob. 1MICh. 5.4 - Prob. 1CCCh. 5.4 - Retrieve, Infer, Apply What is a proteasome? Why...Ch. 5.4 - Prob. 3CCCh. 5.4 - Prob. 4CC
Ch. 5.4 - Describe the secretory pathway. To what...Ch. 5.4 - Prob. 6CCCh. 5.5 - MICRO INQUIRY Which subunit attaches to the rough...Ch. 5.5 - Prob. 1CCCh. 5.5 - Prob. 2CCCh. 5.5 - Prob. 3CCCh. 5.5 - Prob. 4CCCh. 5.6 - Prob. 1MICh. 5.6 - Describe the structure of aerobic mitochondria,...Ch. 5.6 - Prob. 2CCCh. 5.6 - Prob. 3CCCh. 5.7 - Prepare and label a diagram showing the detailed...Ch. 5.7 - Prob. 2CCCh. 5.7 - Prob. 3CCCh. 5.8 - Retrieve, Infer, Apply Outline the major...Ch. 5.8 - Retrieve, Infer, Apply What characteristics make...Ch. 5 - Prob. 1RCCh. 5 - Prob. 2RCCh. 5 - Prob. 3RCCh. 5 - Prob. 4RCCh. 5 - Discuss the statement: The most obvious difference...Ch. 5 - Prob. 2ALCh. 5 - Compare the mechanisms by which most eukaryotic...Ch. 5 - Prob. 4AL
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- In a mitochondrion, where are the electron transport systems and enzymes required for ATP formation located?arrow_forwardIt has been estimated that mitochondria occupy 20% of the volume in the human body. For a 70- kg adult, the average number of mitochondria has been estimated to be 1 × 10 (10,000 trillion). Using this information, provide a rough estimate of the average mass of a mitochondrion.arrow_forwardList down the specific functions of the component structures of mitochondrion relative to cellular respiration.arrow_forward
- Describe in general terms the structural makeup of a mitochondrion.arrow_forwardDraw a simple diagram of a mitochondrion and identify its structural features.arrow_forwardThe energy associated with ATP synthesis in eukaryote cells originates in the: A) mitochondrion as O2, B) in the nucleus as a gene in the DNA, C) as light absorbed by chlorophyll of a cell, D) In the mitochondrion stored as glycogen molecules, E) Fat stored in a Liposomearrow_forward
- What is the effect of increased levels of hydrogen ions in the intermembrane space of the mitochondria? answer choices A.) Decreased levels of oxidative phosphorylation B.) Increased levels of water in intermembrane space C.) Decreased levels of chemiosmosis D.) Increased ATP productionarrow_forward1) When a de-coupler such as 2,4-DNP is added to a respiring mitochondrion, which of the following effects on the process of ETC-OP will be true, which will be false. a) Mitochondria no longer reduce O2 to H2 b) Electrons no longer enter the electron transport chain. c) Activity of Complex V (ATP Synthase) is greatly decreased. d) The P/O ratio for FADH2 becomes larger than the P/O ratio for NADH. e) Protons are no longer pumped from the mitochondrial matrix to the intermembrane space. 2) The rate-limiting step in fatty acid synthesis is: a) condensation of acetyl-CoA and malonyl-CoA. b) formation of acetyl-CoA from acetate. c) formation of malonyl-CoA from malonate and coenzyme A. d) the reaction catalyzed by acetyl-CoA carboxylase.arrow_forwardWhich effects the increased levels of hydrogen ions in the inter-membrane space of the mitochondria? a) Decreased levels of chemiosmosis b) Increased levels of water in inter-membrane space c) Increase ATP production d) Decreased levels of oxidative phosphorylationarrow_forward
- How are proteins normally transported into the mitochondrial matrix, if they were originally synthesized on ribosomes present in the cytosol (not on the rough endoplasmic reticulum)? they are packaged into vesicles with v-SNARES for fusion with their target organelles they can pass freely through large pores in the inner mitochondrial membrane they are secreted by the golgi, captured by receptors, and absorbed by endosomes they must pass through the nuclear envelope by means of nuclear pores they are unfolded in the translocation channel, then refolded by chaperonesarrow_forwardPredict the outcome of a mitochondrial membrane that is more permeable to hydrogen ions than normal. answer choices A.) Increased levels of inorganic phosphate in the mitochondrial matrix B.) Reduced formation of water C.) Reduced activity of electron transport chain D.) Increased activity of ATP synthasearrow_forwardMitochondria are the powerhouse of the cell and feature a double membrane. A mutation was discovered in Drosophila melanogaster that prevented the formation of cristae in mitochondria. Which of the following would the researchers observe in Drosophila with this mutation? H+ ions could not be pumped into the intermembrane space. The components of the respiratory chain would not colocalize efficiently. NADH2 could not be transported from the cytoplasm into the mitochondria. Proteins synthesized in the cytoplasm would not be able to enter the mitochondria. i and ii i and iv ii and iii iii and ivarrow_forward
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