Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 4, Problem 3CCQ
A principle of biology is that structure determines function. Explain how the invaginations of the inner mitochondrial membrane are related to mitochondrial function.
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Predict 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 synthase
Explain the organization of electron carriers in mitochondrial membrane.
The following are true of the mitochondrial structure
I. The inner mitochondrial membrane is convoluted to give more space for oxidative phosphorylation and ATP synthesis.
II. The porins in the outer membrane makes the outer membrane less permeable than the inner membrane.
III. The matrix contains the machinery for gene expression.
IV. The intermembrane space is between the outer and inner membrane of the mitochondrion.
I, II, III, IV
I, II, III only
I, III, IV only
I, II, IV only
Chapter 4 Solutions
Principles of Biology
Ch. 4.1 - With regard to the origin of life, why are...Ch. 4.1 - Prob. 2CCCh. 4.1 - Prob. 3CCCh. 4.1 - Prob. 1BCCh. 4.1 - Prob. 4CCCh. 4.1 - Prob. 1TYKCh. 4.1 - Prob. 2TYKCh. 4.1 - Prob. 3TYKCh. 4.2 - Prob. 1CCCh. 4.2 - Prob. 1TYK
Ch. 4.2 - Prob. 2CCCh. 4.2 - Prob. 2TYKCh. 4.3 - Prob. 1BCCh. 4.3 - Prob. 1CCCh. 4.3 - Prob. 2BCCh. 4.3 - Prob. 1TYKCh. 4.3 - Prob. 2TYKCh. 4.3 - Prob. 3TYKCh. 4.4 - Prob. 1BCCh. 4.4 - Prob. 1CCCh. 4.4 - Prob. 1TYKCh. 4.4 - Prob. 2BCCh. 4.4 - Prob. 2TYKCh. 4.4 - Prob. 3TYKCh. 4.5 - What is the function of the nuclear lamina and the...Ch. 4.5 - Prob. 1BCCh. 4.5 - Prob. 2CCCh. 4.5 - Prob. 1TYKCh. 4.5 - Prob. 2TYKCh. 4.5 - Prob. 3TYKCh. 4.6 - What is the advantage of having a highly...Ch. 4.6 - Prob. 1BCCh. 4.6 - Prob. 2CCCh. 4.6 - Prob. 1TYKCh. 4.6 - Prob. 2TYKCh. 4.7 - Prob. 1TYKCh. 4.8 - Prob. 1CCCh. 4.8 - Prob. 2CCCh. 4.8 - Prob. 3CCCh. 4.8 - Prob. 4CCCh. 4.8 - Prob. 1TYKCh. 4.8 - Prob. 2TYKCh. 4.8 - Prob. 3TYKCh. 4.9 - Which of the following could be found in a...Ch. 4.9 - Prob. 2TYKCh. 4 - The cell theory states that all living things are...Ch. 4 - Prob. 2TYCh. 4 - Prob. 3TYCh. 4 - Prob. 4TYCh. 4 - Prob. 5TYCh. 4 - Prob. 6TYCh. 4 - Prob. 7TYCh. 4 - Prob. 8TYCh. 4 - Prob. 9TYCh. 4 - Prob. 10TYCh. 4 - Describe two specific ways that protein-protein...Ch. 4 - Explain how motor proteins and cytoskeletal...Ch. 4 - A principle of biology is that structure...Ch. 4 - Prob. 1CBQCh. 4 - Prob. 2CBQ
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- How is the function of the thylakoid membrane similar to that of the inner mitochondrial membrane?arrow_forwardThe mitochondrial membrane potential is an indicator of cell viability. Think about mitochondrial function and decide which of these statements best describes the mitochondrial membrane potential. a.) A voltage that reflects the movement of ATP across the outer mitochondrial membrane b.) A voltage that reflects the movement of protons across the outer mitochondrial membrane c.) A voltage that reflects the movement of protons across the inner mitochondrial membrane d.) A voltage that reflects the movement of ATP across the inner mitochondrial membranearrow_forwardHow is the Inner Mitochondrial Membrane (IMM) different from the Outer Mitochondrial Membrane (OMM) ?arrow_forward
- Mutations that prevent Bax and Bak from interacting with the outer mitochondrial membrane would prevent the release of cytochrome c and inhibit intrinsic apoptosis. prevent the release of cytochrome cand promote assembly of the apoptosome. trigger the release of cytochrome c and promote intrinsic apoptosis. trigger the release of cytochrome c and promote the assembly of the apoptosome. trigger the release of cytochrome c and promote the cleavage of procaspase-8.arrow_forwardWhat occurs in the mitochondrial intermembrane space?arrow_forwardMatch each item with the correct statement below concerning the electron transport chain and chemiosmosis. You can choose a selection more than once. Question 61 options: Where do protons re-enter the mitochondrial matrix? What molecule is transported by facilitated diffusion? What are the electron donor molecules at the beginning of the chain? In what order are the components of the chain arranged? Where do electrons, protons, and oxygen meet to become water? What is the first protein complex of the chain? What moves into the intermembrane space? What accepts the electrons at the end of the chain? 1. increasing electronegativity 2. decreasing electronegativity 3. ATP 4. oxygen 5. protons 6. NADH/FADH2 7. NADH dehydrogenasearrow_forward
- The inner membrane of the mitochondria is highly folded, creating structures known as , which aid in . Group of answer choices Thylakoid membranes, Increasing surface area for energy production Cristae, Increasing surface area for energy production Cristae, Creating an impermeable barrier to hold in the mitochondrial matrix Cristae, Increasing surface area to retain the mitochondrial DNAarrow_forwardThe mitochondrial matrix is home for the following: I. ribosomes II. circular DNA III. Kreb's cycle IV. enzymes for transcription I, III, IV only I, II, III only II, III, IV only I, II, III, IVarrow_forwardIn the 1930s, some physicians prescribed low doses of a compound called dinitrophenol (DNP) to help patients lose weight. This unsafe method was abandoned after some patients died. DNP uncouples the chemiosmotic machinery by making the lipid bilayer of the inner mitochondrial membrane leaky to H+. Chemical agents that cause this effect are called uncouplers. Explain how this could cause weight loss and also death. Considering the danger, is there any use for compounds like DNP or other uncouplers?arrow_forward
- Describe the molecular mechanisms of mitochondrial ATP synthesis.arrow_forwardProteins in the inner mitochondrial membrane are involved in which of the following processes? a. nucleotide synthesis b. OXPHOS c. autophagy d. NADH synthesisarrow_forwardWhat happens in the mitochondrial intermembrane space?arrow_forward
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