Cell Transport

Cell membranes are composed of:

• Phospholipid bilayers

• Lipid sheets

• Carbohydrates

• Nitrolipid trilayers

Cell membranes allow specific materials to pass through it, but not other materials, so it's referred to as:

• Permeable

• Impermeable

• Selectively permeable

• Porous

Passive transport across a cell membrane

• does not require cellular energy.

• requires cellular energy.

• uses ATP.

• requires glucose.

Tags

NGSS.HS-LS2-3

Which of the following is a form of passive transport:

• Pinocytosis

• Phagocytosis

• Endocytosis

• Osmosis

The cell membrane is referred to as a fluid mosaic model because

• it has a tile-like structure.

• it has a uniform surface consisting only of lipids.

• it has a phospholipid bilayer with embedded proteins and carbohydrates that look like a mosaic.

• it is primarily made of proteins.

Refers to the natural movement of a substance from areas of high concentration to areas of low concentration

• Diffusion

• Disolution

• Dissolving

• Dismemberment

Diffusion of water

• Mitosis

• Osmosis

• Hydroponics

• Hydrophobic

Osmosis across a cell membrane occurs through

• proteins called aquaporins

• proteins called hydropores

• carbohydrates called aquaporins

• cellular fissures

Osmosis is a form of:

• Passive transport

• Active transport

• Formative transport

• Isotonic transport

Which of the following is a form of active transport where a cellular membrane envelopes material to take it into the cell

• Osmosis

• Endocytosis

• Protein pump

• Facilitated diffusion