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

Biology Review Today

Homeostasis

Cell membrane

Iodine molecules were small(diffused into the baggie), starch molecules were too big, (did not diffuse into water)

Chemical change (color changed)

EnergyTissue growth & repair

Energy, insulation & protection

Fats

PHYSICAL BREAKING DOWN OF FOOD!!

Occurs in the mouth and stomach.

CHEMICALLY BREAKING DOWN FOOD

BY ENZYMES (amylase in mouth, pepsin in stomach)

Mouth Stomach

Mouth Stomach and the Small Intestine

Small Intestine

Increases absorption of nutrients

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

R. Atrium

R. Ventricle

L. Atrium

L. Ventricle

Left atrium and ventricle

Right atrium and ventricle

Capillaries

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.

e. Below is the pathway of air in the respiratory system. Fill in the missing organs:

Nose ___________ Larynx ____________ Bronchi ____________

Alveoli

Pharynx Trachea Bronchioles

Carbon dioxide, heat, water, urea, and salt

Sweat cools off the body!

Label each part of the Urinary System Diagram:

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

Hormones

a. Bones are living ___________________

b. Bones make blood cells _________________

c. Bones do not store minerals like calcium and phosphorus ______________

True

True

False

Pivot, Hinge, Ball & Socket

True

Bone

Bone

3

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!