Biology - Unit 3 Test Review

Biology - Unit 3 Test Review

by Jimmy Sweeney

Osmosis and diffusion​

​

​Some terms to remember

• ​​Concentration​

• Solute

• ​Solvent

Open Ended

Let's say we each have a glass of orange juice. Your orange juice is more concentrated than mine. What does that mean?

Open Ended

What are some things that are dissolved in orange juice?

Open Ended

What is the thing doing the dissolving in orange juice?

• The solute (thing dissolved) - sugar, citric acid, salt

• ​Solvent - water

• ​Concentration​ - amount of solute dissolved per amount of water

  • ​similar to density

  • ​more concentrated orange juice is more orange juicey / less watered-down

​In orange juice...

Multiple Choice

I have a 200 mL of water and I mix 5 grams of salt into it. Which is the solvent?

• glass

• spoon

• salt

• water

Multiple Choice

I have a two glasses, each with 200 mL of water. I mix 5 grams of salt into Glass A and 10 grams of salt into Glass B. Which glass of water has a higher concentration of salt?

• Glass A

• Glass B

• both have equal concentration