why is the inner membrane of the mitochondria highly folded

Contents

1 Why Is The Inner Membrane Of The Mitochondria Highly Folded?
2 Why is the inner membrane of the mitochondria highly folded quizlet?
3 Why is it important that the inner membrane of the mitochondria be folded in both plant and animal cells?
4 What is the folded membrane inside the mitochondria?
5 What happens across the inner membrane of the mitochondria?
6 Why is the double membrane of the mitochondria important?
7 What would happen if the inner mitochondrial membrane is freely permeable to hydrogen ions?
8 Why is the mitochondria labeled as the powerhouse of the cell what about chlorophyll?
9 Why are membranes folded?
10 Is the inner mitochondrial membrane permeable?
11 How is the inner membrane of the mitochondria adapted to its function?
12 How is the inner membrane of the mitochondria unique?
13 Why does the mitochondrial inner membrane have a low passive permeability to most ions?
14 What molecules on the inner mitochondrial membrane are responsible for its permeability to hydrogen?
15 Why is the double membrane of the mitochondria important quizlet?
16 What would be the impact of the inner mitochondrial membrane was freely permeable to protons?
17 Which of the following is impermeable to inner mitochondrial membrane?
18 Which lipid makes the inner mitochondrial membrane impermeable to protons?
19 Does the mitochondria use light energy?
20 Why do chloroplasts and mitochondria have so much membrane?
21 Why do mitochondria and chloroplasts have two membranes?
22 What is a folded membrane?
23 What is membrane folding?
24 What is the importance of the inner membrane?
25 What happens across the inner membrane of the mitochondria quizlet?
26 Which of the following best explains how the extensive folding of the inner mitochondrial membrane benefits a eukaryotic cell?
27 What is the inner membrane of a mitochondria made of?
28 Why does the potential energy of protons increase when they move from the mitochondrial matrix into the intermembrane space?
29 Which side of the inner mitochondrial membrane has a higher pH?
30 How is the proton concentration gradient created inside and outside of mitochondrial inner membrane?
31 What is the function of the two membranes of mitochondria quizlet?
32 Why is the mitochondria of a cell important quizlet?
33 Can you tell what shape the mitochondria have?
34 What would happen if the inner mitochondrial membrane leaked protons?
35 Mitochondria structure and function | Cell Physiology medical animation
36 The inner membrane of mitochondria bears folding/finger like projections, these-
37 Folding of inner membrane of mitochondria are called
38 Why is the inner membrane of Mitochondria is folded?

Why Is The Inner Membrane Of The Mitochondria Highly Folded?

To increase the capacity of the mitochondrion to synthesize ATP, the inner membrane is folded to form cristae. These folds allow a much greater amount of electron transport chain enzymes and ATP synthase to be packed into the mitochondrion.

Why is the inner membrane of the mitochondria highly folded quizlet?

Why is the inner mitochondrial membrane folded? Because the cristae increase the surface area for chemical reactions.

Why is it important that the inner membrane of the mitochondria be folded in both plant and animal cells?

Why is it important that the inner membrane of the mitochondria be folded in both plant and animal cells? The folded membrane increases the structure strength of the mitochondria. The folded membrane increases the surface area for energy production.

What is the folded membrane inside the mitochondria?

Each mitochondrion has two membranes: an inner membrane which is highly convoluted and folded into finger-like projections called cristae, and a smooth outer membrane that is a selective barrier to molecules from the cytoplasm.

What happens across the inner membrane of the mitochondria?

At the inner mitochondrial membrane, a high energy electron is passed along an electron transport chain. The energy released pumps hydrogen out of the matrix space. The gradient created by this drives hydrogen back through the membrane, through ATP synthase.

Why is the double membrane of the mitochondria important?

The mitochondrion has a primary role in energy metabolism, a role that is intimately connected with its double-membrane structure (outer and inner, each comprising a lipid bilayer). Formation of mitochondria (mitochondrial biogenesis) is under the dual control of the nuclear and mitochondrial genetic systems.

What would happen if the inner mitochondrial membrane is freely permeable to hydrogen ions?

If protons (H+) were able to freely move across the mitochondrial membrane, cellular respiration will not occur.

Why is the mitochondria labeled as the powerhouse of the cell what about chlorophyll?

Mitochondria (singular = mitochondrion) are often called the “powerhouses” or “energy factories” of a cell because they are responsible for making adenosine triphosphate (ATP), the cell’s main energy-carrying molecule. … Like mitochondria, chloroplasts also have their own DNA and ribosomes.

Why are membranes folded?

As the new protein is made by the ribosome, it enters the endoplasmic reticulum membrane where it folds into the correct shape. This process is best understood for proteins that span the membrane once.

Is the inner mitochondrial membrane permeable?

The mitochondrial inner and outer membranes have contrasting permeability characteristics. The outer membrane is non-specifically permeable to all low-molecular-weight solutes, whereas the inner membrane is impermeable except through specific transporters.

How is the inner membrane of the mitochondria adapted to its function?

The folding of the inner membrane increases the surface area inside the organelle. Since many of the chemical reactions happen on the inner membrane, the increased surface area creates more space for reactions to occur. If you have more space to work, you can get more work done.

How is the inner membrane of the mitochondria unique?

The inner membrane is freely permeable to oxygen, carbon dioxide, and water only. It is much less permeable to ions and small molecules than the outer membrane, creating compartments by separating the matrix from the cytosolic environment. This compartmentalization is a necessary feature for metabolism.

Why does the mitochondrial inner membrane have a low passive permeability to most ions?

Foremost among these tasks is the continuous production of ATP through oxidative phosphorylation, which requires a large electrochemical driving force for protons across the mitochondrial inner membrane. This process requires a membrane with relatively low permeability to ions to minimize energy dissipation.

What molecules on the inner mitochondrial membrane are responsible for its permeability to hydrogen?

Similarly, hydrogen ions in the matrix space can only pass through the inner mitochondrial membrane through a membrane protein called ATP synthase. This protein acts as a tiny generator turned by the force of the hydrogen ions diffusing through it, down their electrochemical gradient.

Why is the double membrane of the mitochondria important quizlet?

The rod-shape of Mitochondria increases the surface area for diffusion and makes diffusion faster and more efficient to provide the high energy needs that a organism has. … The double membrane increases the surface area.

What would be the impact of the inner mitochondrial membrane was freely permeable to protons?

If the inner mitochondrial membrane was freely permeable to protons (H+) what would be the most devastating result to the cell? ATP would not be produced by oxidative phosphorylation.

Which of the following is impermeable to inner mitochondrial membrane?

Mitochondrial membranes are impermeable to NAD+ or NADH, the latter being effectively transported across the mitochondrial membrane in the form of a substrate, such as malate, that is then dehydrogenated (to oxaloacetate) with reduction of NAD+ to NADH.

Which lipid makes the inner mitochondrial membrane impermeable to protons?

cardiolipin

The inner membrane is highly specialized. Its lipid bilayer contains a high proportion of the “double” phospholipid cardiolipin, which has four fatty acids rather than two and may help to make the membrane especially impermeable to ions.

Does the mitochondria use light energy?

Mitochondria are the “powerhouses” of the cell, breaking down fuel molecules and capturing energy in cellular respiration. … They’re responsible for capturing light energy to make sugars in photosynthesis. Mitochondria and chloroplasts likely began as bacteria that were engulfed by larger cells (the endosymbiont theory).

Why do chloroplasts and mitochondria have so much membrane?

Over time, the aerobic prokaryotes became mitochondria, while the photosynthetic prokaryotes became the chloroplasts now found in plant cells. … The double membrane found in mitochondria and chloroplasts appears to be a relic of the absorption of the prokaryotic bacteria by the eukaryotic host cells.

Why do mitochondria and chloroplasts have two membranes?

What Is the Function of Chloroplast Membranes? Like mitochondria, chloroplasts are surrounded by two membranes. The outer membrane is permeable to small organic molecules, whereas the inner membrane is less permeable and studded with transport proteins.

What is a folded membrane?

One such organelle is the endoplasmic reticulum. This organelle is a highly folded membrane. The many folds result in more surface area for ribosomes to attach and thus allowing protein synthesis to occur at a more efficient rate. … This organelle has two membranes one of which is folded inside the other.

What is membrane folding?

The process of polytopic (multispanning) membrane protein folding can be viewed as a series of sequential but potentially overlapping steps that include: i) formation, orientation and integration of transmembrane helices in the lipid bilayer, ii) helical packing within the membrane, iii) localization and folding of …

What is the importance of the inner membrane?

The inner or cytoplasmic membrane, impermeable to polar molecules, regulates the passage of nutrients, metabolites, macromolecules, and information in and out of the cytoplasm and maintains the proton motive force required for energy storage.

What happens across the inner membrane of the mitochondria quizlet?

Inside the inner membrane of the mitochondria there is a chain of electron carriers known as the electron transport chain. … These 2 electrons pass along the chain and release energy from 1 carrier to the next. At 3 locations along the chain, enough energy is released to produce ATP via ATP synthase.

Which of the following best explains how the extensive folding of the inner mitochondrial membrane benefits a eukaryotic cell?

Which of the following best explains how the extensive folding of the inner mitochondrial membrane benefits a eukaryotic cell? It provides better insulation for reactions in the matrix from conditions outside the mitochondria.

What is the inner membrane of a mitochondria made of?

Defects of the mitochondrial lipid milieu composition

The inner mitochondrial membrane (IMM) contains phospholipids that are critical for the structure and integrity of the embedded respiratory chain proteins.

Why does the potential energy of protons increase when they move from the mitochondrial matrix into the intermembrane space?

Why does the potential energy of protons increase when they move from the mitochondrial matrix into the intermembrane space? Because the intermembrane space is positively charged, so the protons there are repelled by each other.

Which side of the inner mitochondrial membrane has a higher pH?

Which side of the inner mitochondrial membrane would have a higher pH? The side of the inner mitochondrial membrane that would have a higher pH would be the inner membrane because it has a low number of hydrogen ions.

How is the proton concentration gradient created inside and outside of mitochondrial inner membrane?

In cell respiration, the proton pump uses energy to transport protons from the matrix of the mitochondrion to the inter-membrane space. It is an active pump that generates a proton concentration gradient across the inner mitochondrial membrane because there are more protons outside the matrix than inside.

What is the function of the two membranes of mitochondria quizlet?

What is the function of the two membranes of mitochondria? Protons are pumped into the space between the membranes. What is the role of oxygen in respiration?

Why is the mitochondria of a cell important quizlet?

They are important because they vastly increase the organelle’s surface area, which is necessary to accommodate the large number of protein complexes required for electron transport and ATP synthesis.

Can you tell what shape the mitochondria have?

What is a mitochondrion? A mitochondrion is a round to oval-shaped organelle found in the cells of almost all eukaryotic organisms.

What would happen if the inner mitochondrial membrane leaked protons?

The process involves pumping of protons across the mitochondrial membrane and the proton gradient this forms drives the synthesis of ATP. … Proton leak will increase oxygen consumption (uncoupled respiration, UCR) and the energy will be dissipated as heat instead of being trapped as ‘useful energy’, i.e. ATP (Fig. 1).