Plasma Membrane and Cellular Transport

The movement of a substance across the membrane without any energy from the cell is

• passive transport
• endocytosis
• exocytosis
• active transport

The difference in the concentration of molecules across a space is called the _.

• concentration
• concentration gradient
• diffusion
• equilibrium

When cells take in external fluid, macromolecules, large particles, and other cells, it is a type of active transport called _.

• exocytosis
• Na+/K+ pump
• passive transport
• endocytosis

What process is shown in this image? 

• endocytosis
• exocytosis
• sodium-potassium pump
• diffusion

What will happen to an animal cell if it is placed in a hypotonic solution? 

• It will shrink.
• It will remain the same size.
• It will swell, and possibly burst (lyse).
• It will swell, but will not burst open.

What will happen to a plant cell if it is placed in a hypertonic solution?

• It will burst open (cytolysis).
• It will undergo plasmolysis.
• It will become turgid.
• It will not change.

What is the term for the internal water pressure in a plant cell? 

• turgor pressure
• barometric pressure

_ are cells that allow lysosomes to fuse with the vesicle and destroy the bacteria or virus.

• pinocytes
• ribosomes
• lysosomes
• phagocytes

Which of the following would MOST likely move a substance in active transport? 

• carrier protein
• phospholipid
• lipoprotein
• marker protein

Which organelle helps to offset (reduce) the effects of osmosis in protists?

• vacuole
• cilia
• contractile vacuole
• flagella