What is the difference between intracellular and extracellular?
Intracellular- inside the cell
Extracellular- outside the cell
Explain facillitated diffusion. Does it require ATP?
Using a protein to help move large materials
Give an example of a
Negative Feedback Loop
Positive Feedback Loop
Draw a negative feedback loop and a positive feedback loop. Label.
What is letter D?
Phospholipid.
What does semi-permeable mean?
Only certain things are allowed to enter / exit.
Give an example of passive transport:
1. Diffusion
2. Osmosis
3. Facilitated Diffusion
Why is homeostasis important?
Draw:
Concentration gradient
Against the concentration gradient
What is letter B?
Protein
List the 4 molecules in the cell membrane and what their job is.
1. Carbs- lookout / cell recognition
2. Proteins- move things into the cell
3. Phospholipids- structure
4. Cholesterol- keep the shape
Explain the two types of Endocytosis:
Phagocytosis
Pinocytosis
Phagocytosis-cell eating
Pinocytosis- cell drinking
Give an example of how an animal can maintain its internal body temperature?
1. Evaporative Cooling
2. Behavior
3. Insulation
Draw each type of cell:
Isotonic
Hypertonic
Hypotonic
What is letter I?
Cholesterol
Why is the cell membrane called the fluid-mosaic model?
1. It has a fluid-like movement
2. It is made up of many different parts.
Give an example of Active Transport.
Endocytosis, exocytosis, Sodium-Potassium Pump
What are the 3 types of homeostasis?
2. Thermoregulation
3. Chemical Regulation
Draw a phospholipid. Label the hydrophilic and hydrophobic region.
What is letter G?
A carbohydrate
Draw a simple cell membrane with all of the components.
Explain facilitated diffusion. Does it require ATP?
What is when a protein helps move a large molecule. No ATP
Explain how saltwater vs. freshwater fish maintain homeostasis.
Draw a:
1. Ecotherm
2. Endotherm
1. Cold blooded
2. Warm blooded
What type of transport is shown and does it require ATP?
Diffusion, no atp.