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

• vacuole
• nucleus
• cell membrane
• cell wall

Tags

NGSS.HS-LS1-3

Food is moved into the cell by ________________________.

• endocytosis
• diffusion
• exocytosis
• osmosis

What type of transport is this?

• facilitated diffusion
• active transport
• diffusion
• osmosis

Tags

NGSS.MS-LS1-2

Active transport requires ______, moves materials from __________________, and goes _______ the concentration gradient.

• No energy, low to high, against
• ATP, high to low, with
• ATP, low to high, with
• ATP, low to high, against

The difference in the concentration of a substance from one location to another is called 

• diffusion
• osmosis
• concentration gradient
• passive transport

A balance that an organism maintains by regulating what goes into and out of the cell.

• Hypertonic
• Homeostasis
• Plasmolysis
• Hypotonic

Tags

NGSS.HS-LS1-3