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water concentration is below what is found in a cell’s cytoplasm. Water will tend to move out of the cell, down its concentration gradient → Cell shrivels

• Hypotonic

• Hypertonic

• IsotonicO

• Osmosis

water concentration is above what is found in a cell’s cytoplasm. Water will tend to move into a cell, down its concentration gradient → Cell swells

• Hypotonic

• Hypertonic

• Isotonic

• Osmosis

equal water concentrations to what is found in a cell’s cytoplasm → Cell stays the same

• Hypotonic

• Hypertonic

• Isotonic

• Osmosis

Examples of Active Transport

• Exocytosis

• Endosytosis

• Osmosis

• Molecular Pumps

Examples of passive transport

• Diffusion

• Osmosis

• Facilitated diffusion

• Molecular Pumps

When molecules gave to move against the concentration gradient

• active transport

• osmosis

• passive transport

• homeostasis

The diffusion of water across the cell membrane

Water molecules move down a concentration gradient, from high [ ] to an area of low [ ]

• hydroponics

• cell transport

• osmosis

• molecular diffusion

This requires no extra energy by the cell because molecules move from high concentration (squished together) to low concentration (spread out) areas down the concentration gradient.

• active transport

• osmosis

• passive transport

• cell membrane

The need of an organism to maintain and regulate constant or stable internal conditions.

• cell transport

• hydrosis

• osmosis

• homeostasis

What does selectively permeable mean?

• Unable to penetrate

• Movement of molecules in the nucleous and the cell membrane

• certain substances can move across the cell membrane freely, while others must move through a “gate"

• No cell membrane is present