EXAM 1

Phospholipids have a __________ head and __________ tail.

• 1. 1.Hydrophobic 2.Hydrophillic

• 1. 1.Negative 2.Positive

• 1. 1. Hydrophilic 2.Hydrophobic

• 1.Positive 2.Negative

Peripheral proteins are integrated fully into the plasma membrane.

• True

• False

What does the process of passive transport use to allow molecules through the membrane?

• ATP

• Concentration gradient

• Energy

• Other molecules

Molecules will move from an area from _____ concentration to ____ concentration

• 1.Low 2.High

• 1. 1.Highest 2.Smallest

• 1.Negative 2.Positive

• 1.High 2.Low

What molecules can easily pass through the membrane?

• Polar

• Ions

• Amino Acids

• Nonpolar

Passive transport includes

• A.Simple Difussion

• B.Active Transport

• C.Facilitated Difussion

• D. Both A and C

• E. All the above

Channel proteins are either open all the time or gated

• True

• False

What is this process showing? Concentration are going from high to low.

• Active transport

• Passive transport

• Osmosis

• Facilitated Transprt

The cell on the left is said to be

• Hypertonic

• Hydrophillic

• Isotonic

• Hypotonic

What molecules are not transported during active transport?

• Water

• Ions

• Glucose

• Amino Acids