Passive

Why are water molecules able to enter the egg but NOT the sugar molecules?

• Sugar molecules are too heavy.

• The holes of the semi-permeable membrane were too small to let sugar molecules through.

• Semi-permeable membranes need energy.

• Semi-permeable membranes must be under pressure to work.

What type of transport uses a transport protein?

• Osmosis

• Facilitated diffusion

Osmosis

• diffusion of water molecules through a semi-permeable mebrane from an area of low concentration to an area of high concentration

• the diffusion of particles from an area of high concentration to an area of low concentration

• diffusion of water molecules through a semi-permeable membrane from an area of high concentration to an area of low concentration

• the diffusion of particles from an area of low concentration to an area of high concentration

_______ regulates what enters and leaves a cell.  

• Cell Membrane

• Nucleus

• Mitochondria

• Cytoplasm

Tags

NGSS.MS-LS1-2

Facilitated diffusion requires which of the following to occur?

• Energy in the form of ATP

• A concentration gradient

• Carrier proteins or channels

• Both B and C

Which of the following is an example of passive transport?

• Endocytosis

• Osmosis

• Sodium-potassium pump

• Phagocytosis

Tags

DOK Level 1: Recall

Explain how active transport differs from passive transport.

• Active transport requires energy to move substances against their concentration gradient, while passive transport does not.

• Active transport does not require cellular energy, whereas passive transport does.

• Active transport can only move liquids, while passive transport can move solids and liquids.

• There is no difference; both transport mechanisms are the same.

Tags

DOK Level 2: Skill/Concept

Equilibrium?

• a large  amount of substance on  side of the cell and a small amount on the other side

• a small  amount of substance on  side of the cell and a large amount on the otherside

• equal amount of substance on either side of the membrane  

• no particles on either side of the a cell membrane

Tags

NGSS.MS-LS2-3

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.

Tags

NGSS.MS-LS1-2

Passive Transport means

• Energy is used

• No energy is used

• Energy is created