HOMEOSTASIS LESSON 3

• Biologie
• Middelbare school
• havo
• Leerjaar 3

HAVE READY

- YOUR QUIZ

- YOUR NOTES

CHECKLIST CHAPTER 2:

- STATES

- SOLUTE /SOLVENTS

- DIFFUSION

- OSMOSIS

- TONICITY

- PLASMOLYSIS / TURGID

- ACTIVE TRANSPORT

TODAY:

- EXCRETION

- KIDNEYS

- DIALYSIS

- REVIEW

KIDNEYS:

- YOUR KIDNEYS FILTER YOUR BLOOD AND PRODUCE URINE.

- THEY REGULATE TE LEVELS OF WATER IN YOUR BLOOD PLASMA AND USE OSMOSIS AND DIFFUSION TO CONTROL THESE LEVELS

NEGATIVE FEEDBACK

1. RETURNS TO NORMAL LEVELS
2. RESTORES THE EQUILIBRIUM
3. AMPLIFIES THE LEVELS

WHAT IS AN EXAMPLE OF POSITIVE FEEDBACK:

1. SHIVERING WHEN YOU ARE COLD
2. A FEVER
3. SWEATING WHEN YOU ARE WARM

WHAT HORMONE CONVERTS SUGAR INTO GLYCOGEN?

1. INSULIN
2. PANCREAS
3. GLUCAGON
4. LIVER

WHERE IS GLYCOGEN STORED

1. IN THE FATS
2. IN THE LIVER
3. IN THE KIDNEYS
4. IN THE PANCREAS

SHIVERING IS AN EXAMPLE OF ...

1. NEGATIVE FEEDBACK
2. POSITIVE FEEDBACK

YOU BECOME PALE FROM VASODILATION..

1. TRUE
2. FALSE