Cell Transport

Osmosis is a form of ______________. 

• Passive Transport
• Active Transport

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

Molecules diffusing with the concentration gradient through a protein channel is...

• Facilitated Diffusion
• Simple Diffusion
• Active Transport
• Osmosis

In a nerve cell, ATP energy is used to pump sodium (Na) out of the cell and potassium (K) into the cell. This is an example of...

• Facilitated Diffusion
• Simple Diffusion
• Active Transport
• Osmosis

This cellular structure is responsible for regulating the movement of substances in and out of cells to maintain homeostasis.

• mitochondria

• endoplasmic reticulum

• cell membrane

• Golgi apparatus

Tags

NGSS.HS-LS1-3

The cell membrane

• regulates what enters/leaves cell
• helps maintain homeostasis
• keeps contents of cell in place
• all of the above

Tags

NGSS.MS-LS1-2

What is diffusion?

• when molecules move 
• when molecules move from a high concentration to a low concentration

• no movement 
• molecules move everywhere

The cell membrane is selectively permeable, which means...

• All materials can enter and leave the cell
• Certain things can enter while others cannot
• The cell manually sorts through all materials
• Only certain cells can interact with the cell.

An internal balance in a cell or organism is

• selective permeability

• homeostatsis

• cellular transport

• fluid mosaic model

Tags

NGSS.HS-LS1-3