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.
- Which phase of cellular respiration occurs in the mitochondria?
- How are mitochondria used in cellular respiration?
- What membrane in the mitochondria does cellular respiration occur on?
- What part of the mitochondria creates more space for cellular respiration?
- Which of the following best describes the role the double membrane plays in the mitochondria?
- Is nucleus double membrane?
- Does the nucleolus contain chromatin?
- Why is a double membrane important?
- Why do organelles have double membranes?
- Do organelles have double membranes?
- What 3 organelles have a double membrane?
- Do all organelles have double membrane?
Which phase of cellular respiration occurs in the mitochondria?
Stages of Cellular Respiration Glycolysis occurs in the cytosol of the cell and does not require oxygen, whereas the Krebs cycle and electron transport occur in the mitochondria and do require oxygen.
How are mitochondria used in cellular respiration?
Mitochondria produce energy through the process of cellular respiration. The mitochondria take food molecules in the form of carbohydrates and combine them with oxygen to produce the ATP. They use proteins called enzymes to produce the correct chemical reaction.
What membrane in the mitochondria does cellular respiration occur on?
Cellular respiration occurs in the double-membrane organelle called the mitochondrion. The folds in the inner membrane are called cristae.
What part of the mitochondria creates more space for cellular respiration?
The fluid contained in the mitochondria is called the matrix. 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.
Which of the following best describes the role the double membrane plays in the mitochondria?
Which of the following best describes the role the double membrane plays in the mitochondria? The double membrane structure creates two sets of membranes to embed proteins into for cellular respiration. The double membrane structure creates an interior space to store mitochondrial DNA separate from the nucleus.
Is nucleus double membrane?
A nuclear membrane is a double membrane that encloses the cell nucleus. The nuclear membrane includes an array of small holes or pores that permit the passage of certain materials, such as nucleic acids and proteins, between the nucleus and cytoplasm.
Does the nucleolus contain chromatin?
Figure 1. The nucleus stores chromatin (DNA plus proteins) in a gel-like substance called the nucleoplasm. The nucleolus is a condensed region of chromatin where ribosome synthesis occurs.
Why is a double membrane important?
The membranes create two compartments. The intermembrane space, as implied, is the region between the inner and outer membranes. It has an important role in the primary function of mitochondria, which is oxidative phosphorylation. The matrix contains the enzymes that are responsible for the citric acid cycle reactions.
Why do organelles have double membranes?
The inner membrane is loaded with the proteins that make up the electron transport chain and help generate energy for the cell. The double membrane enclosures of mitochondria and chloroplasts are similar to certain modern-day prokaryotes and are thought to reflect these organelles’ evolutionary origins.
Do organelles have double membranes?
Besides the nucleus, two other organelles — the mitochondrion and the chloroplast — play an especially important role in eukaryotic cells. These specialized structures are enclosed by double membranes, and they are believed to have originated back when all living things on Earth were single-celled organisms.
What 3 organelles have a double membrane?
Mitochondria and plastids, including chloroplasts, have double membranes and their own DNA.
Do all organelles have double membrane?
Generally, eukaryotic cells have double-membrane-bounded organelles , including the nucleus, mitochondria, and chloroplasts.
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