Cell Organization Grade 8 Science A presentation by

Cell Organization Grade 8 Science A presentation by Miss Walker

• Cells are the basic building block of all living things. • All living things are composed of cells. • All cells come from pre-existing cells.

Blood Cells Nerve Cells Asparagus cells Variety Human of Cells Muscle Cells Bladder Cells Onion Cells Epithelial Cells

Cells Tissues cell cell cell cell cell cell Similar cells are organized into tissues.

Nerve Tissue A tissue is a group of cells Bone Tissue that are similar in shape and function. Areolar tissue: Connective tissue that surrounds organs and lies under the skin. Muscle Tissue Connective Tissue found at Elastic Cartilage tissue the ends found in the human ear. of Epithelial bones. Connective Tissue

Tissue A Tissue B Organ Tissue C Tissue D Tissues are often organized into larger structures called organs.

Organs Human Heart Lungs Human spleen

Organ Systems are groups of organs that have related functions. For example, the circulatory system includes the heart; arteries that carry blood from the heart to the tissues; capillaries where nutrients and wastes are exchanged; and veins that carry blood and wastes from the tissues back to the heart. Nerve tissue, blood, epithelial tissue, connective tissue, and muscle tissue are all found in the circulatory system.

Circulatory System Organs in the system Capillary Vein Heart Tissues in the organs Epithelial Blood Cells in the tissues Nerve Connective Muscle

Listening and Viewing Quiz Grade 8 Science

1. ) What word can be used to fill in all of the blanks? ü_____ are the building blocks of all living things. üAll living things are composed of _____. üAll _______ come from pre-existing ________.

2. ) List three types of cells that were shown in the presentation.

3. ) Cells that are similar in shape and function are organized into _______.

4. ) List 3 types of tissues that were shown in the presentation.

5. ) Different kinds of tissues are often organized into larger structures called _____.

6. ) List three different organs that were shown in the presentation.

7. ) ________ are groups of organs that have related functions.

8. ) List three different organ systems found in the human body.

9. ) Put the following terms in order from smallest to largest. • Organ system • Cell • Tissue

10. ) There at least five different kinds of tissues in the circulatory system. List three.

The End