Diffusion, osmosis and Active Transport

How do the particles move in diffusion?

• From a region of low concentration to a region of high concentration

• From a region of high concentration to a region of low concentration

• From a region of low concentration to a region of low concentration

• From a region of high concentration to a region of high concentration

How long does diffusion last?

• Until the concentration of particles in the system is equal

• (Select this answer and I swear i'll make it harder for you in the assessment task)

• Until a region in the system has a greater concentration of particles than the other

• Until the particles disappear from the system

During osmosis

• water moves from high to low concentration
• large or oddly shaped molecules move across a cell membrane
• water moves when energy is used
• proteins are built

_______ regulates what enters and leaves a cell.  

• Cell Membrane
• Nucleus
• Mitochondria
• Cytoplasm

Tags

NGSS.MS-LS1-2

Which way will the water molecules move during osmosis?

• Out of the cell, so the cell shrinks.
• Out of the cell, so the cell swells.
• Into the cell, so the cell shrinks.
• Into the cell, so the cell swells.

The movement of substances across a cell membrane without the use of energy by the cell

• passive transport

• active transport

• osmosis

• cellular respiration

Process by which the cell membrane removes material that is too large to pass through the membrane.

• Endocytosis
• Exocytosis
• Transport
• Respiration

Process in which particles move from less crowded (low concentration) to more crowded (high concentration) using energy

• Passive Transport
• Cellular Respiration
• Active Transport
• Osmosis

The cell below is in a _________ solution.

• Hypotonic
• Hypertonic
• Isotonic

What is the definition of  Selective Permeability?

• The movement of materials across the cell membrane that requires NO ENERGY from the cell.
  
• The movement of materials through (or across) the cell membrane
  
• The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.
• The movement of molecules from an area of high concentration to a area of low concentration