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