Exploring Diffusion and Osmosis Concepts

What is the primary function of mitochondria in cells?

• To store genetic information

• To produce energy

• To control cell division

• To transport nutrients

Tags

NGSS.HS-LS1-7

What is diffusion?

• Movement of large particles using energy

• Movement of water across a membrane

• Movement of particles from high to low concentration

• Movement of particles from low to high concentration

Which of the following is an example of diffusion?

• Food coloring spreading in water

• Water moving through a membrane

• Oxygen being used in mitochondria

• Carbon dioxide being produced

What is osmosis?

• Movement of water and dissolved materials through cell membranes

• Movement of particles from high to low concentration

• Movement of large particles using energy

• Movement of particles without energy

Which statement is true about osmosis?

• It requires energy from the cell

• It does not involve water

• It is not a type of diffusion

• It always involves materials crossing a membrane

What is passive transport?

• Movement of materials using energy

• Movement of materials without energy

• Movement of large particles

• Movement of water only

What is active transport?

• Movement of materials against the usual flow of diffusion

• Movement of water only

• Movement of materials without energy

• Movement of small particles only

What percentage of a cell's energy is used for active transport?

• 10%

• 30%

• 40%

• 20%

What do mitochondria need to produce energy?

• Carbon dioxide and water

• Food and carbon dioxide

• Food, oxygen, and water

• Oxygen and carbon dioxide

What is the waste product of energy production in mitochondria?

• Oxygen

• Water

• Carbon dioxide

• Glucose