6093: Movement of substances

The picture is an example of _________________.

• osmosis

• facilitated diffusion

• diffusion

• active transport

Where is there a low concentration of dye?

• at the bottom of cup

• in the dye

• at the top of cup

• at the sides of the cup

Which process allows dissolved gases move between the blood and body cells?

• absorption

• respiration

• diffusion

• osmosis

Which of the following statements about diffusion is true?

• substances move from high to low concentration

• diffusion only happens across a partially permeable membrane

• water moves from high to low water potential

• substances move from low to high concentration

Osmosis is the movement of _____________ across a partially permeable membrane.

• food molecules

• oxygen molecules

• water molecules

• energy

Where is the highest water potential?

• in the flower

• cannot be determined by picture.

• in the vase

• in the leaves

Passive transport requires no

• concentration gradients
• osmosis
• motion
• energy

What happens during osmosis?

• water molecules moves from high to low concentration without the use of energy

• water molecules moves from high to low concentration with the use of energy

• water molecules moves from high to low water potential without the use of energy

• water molecules move from high to low water potential with the use of energy

Which of the following substances passes through the plasma membrane   through the process of osmosis?

• glucose
• water
• protein
• sodium

Plasma membranes are selectively permeable. This means

• anything can pass in and out

• the membrane regulates the passage of the material in and out of the cell

• glucose cannot enter the cell

• cholesterol cannot enter

Tags

NGSS.MS-LS1-2