Bellwork

• Glue the page you picked up onto page 22 in your journal

Science Fact of the Day:A crocodile's tongue attaches to the roof of its

mouth.

Facilitated Diffusion/Active Transport

• Fill in the blanks as you watch the video

Place your name and class period on the paper I’m giving you and

number it from 1 to 10Title: “Journal Quiz”

1. Which characteristic is shared by all prokaryotes and eukaryotes?

A. Ability to store genetic informationB. Use of organelles to control cell processesC. DNA that is free floating in the cellD. Both types of cells are a similar size

2. Which two structures are common to both prokaryotes and eukaryotes?

A. Cell membrane and nucleusB. Cell membrane and choloroplastsC. Cell membrane and cytoplasmD. Cell wall and cytoplasm

3. Why are prokaryotes smaller than eukaryotes?

A. Because eukaryotes don’t have membrane bound organelles and prokaryotes do

B. Because eukaryotes have membrane bound organelles and prokaryotes don’t

C. Because they are unicellularD. Because they are multicellular

4. Avoli are microscopic air sacks in the lungs of mammals. Which statement best describes

how their structure allows the lungs to function properly?

A. They increase the amount of energy transferred from the lungs to the blood.

B. They increase the flexibility of the lungs as they expand.

C. They increase the volume of the lungs allowing more oxygen to be inhaled.

D. They increase the surface area of the lungs, allowing for more efficient gas exchange.

5. Which of the following equations best represents the endosymbiotic theory?

A. Prokaryote + Eukaryote = EukaryoteB. Eukaryote + Eukaryote = ProkaryoteC. Prokaryote + Prokaryote = EukaryoteD. Prokaryote + Eukaryote = Prokaryote

6. Which of the following do NOT make up the cell membrane?

A. CarbohydrateB. LipidC. DNAD. Protein

7. The cell in the box is pictured in a __________ solution.

A. HypertonicB. IsotonicC. HypotonicD. Sugar

10% salt

2% salt

8. How will the water move in the picture of the cell below?

A. Primarily into the cellB. Primarily out of the cellC. In and out of the cell at the same rateD. It won’t move

10% salt

2% salt

9.Facilitated diffusion occurs when…

A. Molecules move from a high to low concentration across the lipid bilayer

B. Molecules move from a low to high concentration across the lipid bilayer

C. Molecules move from a high to low concentration through a protein channel

D. Molecules move from a low to high concentration across a protein channel

10. The picture below best represents…

A. Simple DiffusionB. OsmosisC. Facilitated DiffusionD. Active Transport

Complete the Transport foldable by the end of class.

• Fold the paper in half.• Label each section a type of molecule transport– Diffusion– Osmosis– Facilitated Diffusion– Active Transport

• Complete the following for each:– At the top, write a definition in your own words for the

transport (be sure to note if it uses energy or not)– Draw a picture across the membrane to represent the

transport—use a book if you are confused.– Color your picture.– This is a grade!