All components of the electron transport chain are embedded in the ____.
A) mitochondrial inner membrane
B) mitochondrial outer membrane
C) mitochondrial matrix
D) cytoplasmic matrix
Q. 2The organelle responsible for production of most of the metabolic energy (ATP) is the ____.
A) Golgi apparatus
B) endoplasmic reticulum
C) nucleus
D) mitochondrion
Q. 3Enzymes of metabolic pathways within the cytoplasmic matrix are often oriented so that the product of one enzyme is released in close proximity to the next enzyme for which it is a substrate, to facilitate the velocity of the overall pathway. This arrangement includes enzymes of ____.
A) beta-oxidation
B) glycolysis
C) ketone production
D) the Krebs cycle
Q. 4The fluid portion of the cytoplasmic matrix does not contain ____.
A) amino acids
B) glucose
C) carbon dioxide
D) urea
Q. 5In the cell structure, the ____ provides support and controls the movement of cell organelles.
A) endoplasmic reticulum
B) mitochondrion
C) cytoskeleton
D) matrix space
Q. 6Proteins attached to the membrane through hydrophobic interactions and embedded in the membrane are called ____.
A) peripheral proteins
B) rough endoplasmic reticula
C) integral proteins
D) Golgi apparatuses
Q. 7The carbohydrate moieties of the plasma membrane glycoproteins and glycolipids are oriented ____.
A) outwardly, away from the cytoplasmic matrix
B) inwardly, toward the lumen
C) equally inwardly and outwardly to maintain symmetry
D) between the bilayers of the membranes
Quick Reply
