Welcome to the Quiz!
This quiz contains 10 questions from a mix of 1 subtopics.
What is the primary function of mitochondria?
to synthesise proteins
to produce large quantities of ATP
to store genetic information
to transport molecules across the cell
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Where does the link reaction and the Krebs cycle occur in the mitochondrion?
intermembrane space
inner membrane
outer membrane
matrix
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What is the role of the intermembrane space in mitochondria?
contains mitochondrial DNA
site of the link reaction
space for protons to be pumped into during oxidative phosphorylation
site of the Krebs cycle
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What is the role of mitochondrial DNA?
to code for some of the proteins required for the mitochondrion to function
to control the cell cycle
to synthesise all the proteins in the cell
to store genetic information for the entire cell
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Which of the following is true about the inner membrane of mitochondria?
it separates the contents of the mitochondrion from the rest of the cell
it contains mitochondrial DNA
it contains the proteins involved in oxidative phosphorylation
it is the site of the link reaction and the Krebs cycle
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What is the role of mitochondrial ribosomes?
to store genetic information
to control the cell cycle
to synthesise proteins within the mitochondria
to transport molecules across the mitochondrial membranes
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What is the benefit of having a small intermembrane space in mitochondria?
it increases the surface area for proteins involved in oxidative phosphorylation
it allows for faster transport of molecules across the mitochondrial membranes
it provides more space for the link reaction and the Krebs cycle
it allows the proton concentration gradient to build up quickly
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Which of the following is true about the outer membrane of mitochondria?
it contains mitochondrial DNA
it separates the contents of the mitochondrion from the rest of the cell
it contains the proteins involved in oxidative phosphorylation
it is the site of the link reaction and the Krebs cycle
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What is the relationship between the number of mitochondria and a cell's energy requirements?
all cells have the same number of mitochondria regardless of energy requirements
cells with higher energy requirements have more mitochondria
cells with higher energy requirements have fewer mitochondria
the number of mitochondria is not related to a cell's energy requirements
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What is the role of enzymes in the matrix of mitochondria?
to pump protons into the intermembrane space
to catalyse reactions in the link reaction and the Krebs cycle
to synthesise ATP
to transport molecules across the mitochondrial membranes
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