Cell transport

The movement of particles from an area of high to low concentration is known as--

• Passive Transport

• Active Transport

What is it called when large molecules move across the cell membrane from an area of high concentration to an area of low concentration through a protein channel?

• Diffusion

• Osmosis

• Active Transport

• Facilitated Diffusion

Cell membrane transport that occurs without energy is called--

• active transport

• endocytosis

• passive transport

• exocytosis

What is the name of the process in which small molecules move from an area of high concentration to an area of low concentration across the cell membrane

• Diffusion

• Osmosis

• Active Transport

• Facilitated Diffusion

The movement of molecules from low to high is known as

• simple diffusion

• facilitated diffusion

• active transport

• osmosis

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

Which is true about active transport?

• It requires energy
• It does not require energy
• It moves substances down the concentration gradient
• it moves material from high to low concentration

The concentration of water is higher in the soil than in plant root cells. Water moves into root cells of a plant by...

• Facilitated Diffusion
• Simple Diffusion
• Active Transport
• Osmosis

This cell structure helps organisms maintain homeostasis by controlling what substances may enter or leave cells.

• vacuole
• nucleus
• cell membrane
• cell wall

The cell membrane is made mostly of

• phospholipid monolayer and proteins
• phospholipid bilayer and proteins
• proteins and carbohydrates bilayer
• triglycerides and carbohydrates