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