Active transport involves
Sodium ions
Chemical energy
The movement of water
Simple diffusion
Which of the following functions is carried out by intermediate filaments but not microtubules?
Providing nuclear lamina structure
Movement of structures within the cell
Cell movement
Cell division
The following cytoskeleton component(s) can be dynamic, shrinking and growing by adding and subtracting subunits:
Microtubules and Microfilaments
Microfilaments only
Microtubules and Intermediate filaments
Microtubules only
Which of the following cells might have the most mitochondria?
Bacterium
Cardiac muscle cell
Skin cell
None of these cells have mitochondria
Which does NOT describe the inner membrane of the mitochondria?
Folds to create cristae
Contains components for cellular respiration
Impermeable
Selectively permeable
Where is the starting point of ribosome synthesis?
Nucleolus
Nuclear envelope
Nuclear localization signal
Nuclear pore
How is the phospholipid bilayer oriented?
Tails face inward towards each other
One head layer touches the second tail layer
Head and tails alternate directions within a layer
Heads face inward towards each other
