1. Do Now: Biology Review 1.Which human body system unit did you find the most difficult this year? 2.Which one did you find the least difficult? HW: Study for 20 min. each night to prepare for the final exam. Units we studied: Digestion, Circulation, Excretion, Respiration, Nervous, Endocrine, Muscular, & Skeletal

2. Biology Review Today

3. Homeostasis Cell membrane

4. Iodine molecules were small (diffused into the baggie), starch molecules were too big, (did not diffuse into water) Chemical change (color changed)

5. Energy Tissue growth & repair Energy, insulation & protection Fats

6. PHYSICAL BREAKING DOWN OF FOOD!! Occurs in the mouth and stomach.

7. CHEMICALLY BREAKING DOWN FOOD BY ENZYMES (amylase in mouth, pepsin in stomach) Mouth Stomach and the Small Intestine Small Intestine Increases absorption of nutrients

8. a. Which part of the blood is responsible for carrying OXYGEN around the body? b. What is the liquid portion of the blood called? c. What is the disease fighting portion of the blood called? d. What helps your blood clot? e. In which blood vessel does DIFFUSION of oxygen and carbon dioxide take place? f. Which blood vessel transports blood AWAY from the heart? g. Which blood vessel transports blood TO the heart? Red Blood Cells Plasma White Blood Cells Capillaries Arteries Veins Platelets 5. CIRCULATORY SYSTEM

9. R. Atrium R. Ventricle L. Atrium L. Ventricle Left atrium and ventricle Right atrium and ventricle Capillaries

11. Cell respiration Gas exchange Capillaries Diffusion Remember, inside the capillaries, there are red blood cells waiting to pick up the oxygen to carry it back to the heart, where it will go to the body.

12. e. Below is the pathway of air in the respiratory system. Fill in the missing organs: Nose  ___________  Larynx  ____________  Bronchi  ____________  Alveoli PharynxTracheaBronchioles

13. Carbon dioxide, heat, water, urea, and salt Sweat cools off the body!

14. Label each part of the Urinary System Diagram:

15. Sensory Neuron --> Interneuron --> Motor Neuron This system coordinates with the Muscular system when you are in danger!! b. Name the 3 parts of the brain: Cerebrum, Cerebellum, Medulla

16. Hormones

17. a.Bones are living ___________________ b.Bones make blood cells _________________ c.Bones do not store minerals like calcium and phosphorus ______________ True False

18. Pivot, Hinge, Ball & Socket True Bone 3

19. Reference Material to Complete this Study Sheet: Life Science Units Each Body System: Notes, Dittos, Labs, Quizzes, Tests, and the Internet (as a last resort!) *Please plan to devote 20 minutes per night to studying for your science final exams!