Homeostasis in Living

Things Transport in Cells

Thermal Regulation in Organisms

Systems in Organisms

Cycles in Ecosystems

Homeostasis allows organisms to regulate:

Homeostasis in Cells Passive and Active Transport

The Plasma Membrane

Aka the ________________ _____________________

Controls what enters and leaves the cell

______________________ ______________________

Notes About Passive Transport Notes About Active Transport

Osmosis Notes About Osmosis:

Other Types of Cellular Transport

Facilitated Diffusion

Molecular Pump

Endo- and Exo- Cytosis

In Da Club - Membranes & Transport: Crash Course Biology #5 (11:14)

1. What term means “to choose what passes through”?

2. What are the two types of transport?

3. What is the diffusion of water called?

4. What is the balanced level of water called?

5. What gets consumed during active transport?

6. Vesicular transport that moves material outside the cell is called _______________________.

7. Vesicular transport that brings material inside the cell is called ____________________.

8. Which type of transport requires energy?

9. Define hypertonic.

10. Define hypotonic.

11. Define isotonic.

Osmosis Lab

Observation: Fruits and vegetables sprayed with water in the grocery store look better than those that

are not sprayed.

Hypothesis:

Dependent Variable:

Independent Variable:

Procedure (write a very simple procedure):

Results (a data table would be easiest – plan it out):

Conclusions:

Osmosis Case Study

Too Much of A Good Thing

1. What sort of environment (hypotonic, hypertonic, isotonic) did the extra fertilizer create around the roots of the corn?

2. Keeping in mind your answer to the previous question, what do you believe caused the corn plants to wilt

and eventually die? 3. If Michael’s mistake had been caught earlier, is there anything that could have been done to prevent the corn

from dying? 4. Generally, people water their plants with 100% H2O—no solutes added. What sort of environment does this

create around the roots of the plant? 5. Briefly explain why plants generally thrive in this sort of environment.

Too Little Too Late

1. What problem did the distilled water in the patient’s bloodstream create? 2. What happed to the patient’s blood cells as a result? 3. Considering the function of red blood cells, why did the patient’s oxygen levels fall? 4. After Tom made his error, is there anything that could have been done to save the patient’s life?

Endotherms Ectotherms

Thermoregulation

Thermoregulation in Animals 4:07

Thermoregulation Lab

Observation: Many animals use insulation to help regulate heat.

Problem: Construct a soup can that will retain heat from 100 ml of hot water.

Design:

Results:

Improvements:

Human Systems and Homeostasis

System:

Digestive System Excretory System

Circulatory System Respiratory System

Biogeochemical Cycles

Carbon Cycle Hydrologic Cycle

Nitrogen Cycle Phosphorus Cycle

The O2 Blues

1. Why is the transport of matter necessary for the survival of different ecosystems?

2. The atmosphere is full of oxygen and every water molecule contains an oxygen atom. How is

possible for aquatic systems to be anoxic?

3. What is eutrophication?

4. What are ways that oxygen is used in aquatic ecosystems?

5. How have hypoxic conditions developed in the Gulf of Mexico?

6. What are some of the effects of these hypoxic conditions?

7. How have hypoxic conditions developed in Long Island Sound?

8. What are some of the effects of these hypoxic conditions?

9. How have hypoxic conditions developed in the Chesapeake Bay?

10. What are some of the effects of these hypoxic conditions?