Chapter 3 Part 2 Study

guide

Question # 1Think about the Carrot Lab. Draw a quick picture about how the water moved while the carrot was in the salt water cup.

Question # 1 AnswerThink about the Carrot Lab. Draw a quick picture about how the water moved in the while the carrot was in the salt water cup.

Answer-

Question # 2- 2 pointsWhat happened when we added a few drops of food coloring to the cup of water?

How did the dye move through the water?

Question # 2 AnswerWhat happened when we added a few drops of food coloring to the cup of water?

ANSWER- Concentrated at the top of the glass.

How did the dye move through the water?

ANSWER- Moved downward until it DIFFUSED evenly throughout the glass

Question # 3When put in certain solutions, an animal cell could burst. What type of solution would cause this?

Question # 3 AnswerWhen put in certain solutions, an animal cell could burst. What type of solution would cause this?

Answer- Hypotonic

Question # 4Explain the main difference between passive and active transport.

Question # 4 AnswerExplain the main difference between passive and active transport.

ANSWER- Passive transport requires NO energy and moves molecules from high to low concentration. Active Transport REQUIRES energy and moves molecules against the concentration gradient.

Question # 5What occurs when a cell is put in an isotonic solution?

Question # 5 AnswerWhat occurs when a cell is put in an isotonic solution?

ANSWER- Molecules move across the cell membrane in a process called DYNAMIC EQUILIBRIUM. If 1 molecule moves in, 1 moves out. If 3 move, 3 move out and so on.

Question # 6Why do plants wilt in the summer?

Question # 6 AnswerWhy do plants wilt in the summer?

ANSWER- There is a greater concentration of water inside plants than outside, so in effort to reach equilibrium the plant moves water out of the plant cells causing the cells to not be as stable.

Question # 7What organelles are involved in endocytosis?

Question # 7 AnswerWhat organelles are involved in endocytosis?

ANSWER- The cell membrane folds inward creating a VESICLE that then fuses with a LYSOSOME, which helps to break down the vesicle and it’s contents.

Question # 8- 2 pointsIn Day Two of the Egg Lab we put the egg in corn syrup, what happened to the egg?

What type of solution is Corn Syrup?

Question # 8 AnswerIn Day Two of the Egg Lab we put the egg in corn syrup, what happened to the egg?

ANSWER- Water moved out of the egg bc of the difference in concentration causing the egg to shrink.

What type of solution is Corn Syrup?

ANSWER- HYPERTONIC

Question # 9- 2 pointsWhat happened when the egg was placed in distilled water?

What type of solution was the distilled water?

Question # 9- 2 AnswerWhat happened when the egg was placed in distilled water?

ANSWER- Water moved into the egg bc of the difference in concentration causing the egg to grow.

What type of solution was the distilled water?

ANSWER- HYPOTONIC

Question # 10There are two forms of endocytosis, what are they?

Question # 10 AnswerThere are two forms of endocytosis, what are they?

ANSWER- Phagocytosis and Pinocytosis

Question # 11What is the main difference between Pinocytosis and Phagocytosis?

Question # 11 AnswerWhat is the main difference between Pinocytosis and Phagocytosis?

ANSWER- Pinocytosis- process of taking liquid into the cell by engulfing it in the membrane.

Phagocytosis- Type of endocytosis where cells engulf large particle. Literally means “Cell Eating”

Question # 12How do nerve cells use active transport in order to function correctly?

Question # 12 AnswerHow do nerve cells use active transport in order to function correctly?

ANSWER- Nerve cells require a higher concentration of potassium than sodium, so it pumps 3 Na atoms out for every 2 K atoms that enter the cell.

Question # 13- 2 PointsWhat type of white blood cell aids the body in fighting infections?

How does this process occur?

Question # 13- 2 AnswerWhat type of white blood cell aids the body in fighting infections?

ANSWER- Macrophages

How does this process occur?

ANSWER- Occurs through the process of Phagocytosis

Question # 14How do transport proteins that are pumps differ from those that are channels?

Question # 14 AnswerHow do transport proteins that are pumps differ from those that are channels?

ANSWER- Pumps require energy to move molecules against a concentration gradient and can change shape upon binding. Channels do not change shape do not require energy.

Question # 15 Explain the difference between diffusion and osmosis.

Question # 15 Answer Explain the difference between diffusion and osmosis.

ANSWER- Osmosis is the movement of only water molecules from an area of high to low concentration. Diffusion is the movement of fluid or gas from an area of high to low concentration.

Tie Breaker!!!!!What was the score of the Varsity football game vs McKinley at Halftime??

Tie Breaker!!!!!What was the score of the Varsity football game vs McKinley at Halftime??

ANSWER- 35-0 PERRY!!!