Nutrient Mitochondria

Mitochondria have their own ____ and DNA floating in the matrix

• ions

• ATP

• water

• ribosomes

True or False. The Krebs Cycle takes place within the mitochondrial matrix.

• True

• False

Increase the surface area available for ATP synthesis

• cristae

• matrix

• inner membrane

• outer membrane

Which is the best term to describe the shape of a mitochondria?

• Cone shaped

• Rod shaped

• Spherical

• Plesiomorphic

The surrounding envelope of a mitochondria consists of...

• A smooth outer membrane and highly permeable inner membrane.

• A relatively permeable smooth outer membrane only.

• A roughly folded outer membrane with high permeability to small molecules and smooth inner membrane.

• A smooth outer membrane and folded inner membrane.

The inner membrane of the mitochondria is studded with which molecules?

• Integral proteins and ATP dehydrogenase

• ATP synthase molecules

• Lipids and glycolipids

• Cholinesterase inhibitors

Which option correctly describes the relative pH in different parts of the mitochondria.

• Intermembrane space higher; matrix lower

• Matrix higher; intermembrane space lower

• Both are in equilibrium

• Varies depending on environment

Select the option which correctly describes the contents of the mitochondrial matrix.

• Enzymes necessary for Krebs and link reactions, High H+ ion concentration and 70S ribosomes.

• Enzymes necessary for Krebs and link reactions, High H+ ion concentration and mitochondrial DNA.

• small 70S ribosomes, copies of looped mitochondrial DNA and enzymes necessary for Krebs and link reactions.

• small 70S ribosomes, copies of mitochondrial DNA in chromosomes and enzymes necessary for glycolysis.

Select all the features that you might expect to find in a mitochondria.

• Highly folded inner membrane

• Cristae

• Mitochondrial DNA condensed into chromosomes

• Small 70S ribosomes

• Necessary enzymes for Krebs and link reactions.

The difference in pH between the mitochondrial matrix and the intermembrane space is maintained by...

• Glycolysis

• Link Reaction

• Krebs Cycle

• ETC