Body Organization

Body Organization

Objective

List the levels of organization in the body.

Reading Time!!

By groups of 3 you will have 15 mins to read pages 4 to 9. Remember to underline the important ideas. Only read. DO NOT answer the book.

Summary

Cells

The basic unit of structure and function in a living thing.

Structures:

-Cell Membrane

-Nucleus

-Mitochondria

-Cytoplasm

Functions: cells carry on the processes that keep organisms alive.

Tissues

A group of similar cells that perform the same function.

Types:

-Muscle tissue: can contract or shorten. Makes body move.

-Nervous tissue: directs and controls the process. Carry the electrical messages between the brain and other parts of the body.

-Connective tissue: provides support for the body and connects all the parts.

-Epithelial tissue: covers the surfaces of the body. Protects the delicate structures that lie beneath it.

Organs

Is a structure that is made up of different kinds of tissue.

Performs specific functions, but more complex than a tissue.

Systems

A group of organs that work together, carrying out major functions.

Organisms

The last level of organization.

Time to practice

With different groups you will answer the pages 4 to 9 of your books. Remember you must speak English most of the time.

Practice Time

Do you remember? Let's find out how much you remember. Answer the following questions.

Multiple Choice

A specialized cell is a cell that has ...

• the ability to divide

• a specific role to do

• no specific function in the bod

Multiple Choice

The dark structure in the middle of each cell is a

• nucleus

• lysosome

• mitochondria

Multiple Choice

Organs that work together are part of a(n) ________________________.

• cells

• tissue

• organ system

Multiple Choice

A group of tissues that work together is a(n) ______________________.

• cell

• organ

• organ system

Multiple Choice

What is a group of cells that are alike and work together?

• a cell team

• a tissue

• a cell family

Multiple Choice

A group of related tissues that work together to perform a function make up ____.

• a system
• an organism
•  an organ
• a cell

Multiple Choice

The most basic level of human organization is _____.

• an organism
• an organ
• a cell
  
• a tissue

Multiple Choice

The respiratory system includes the lungs. What level of body organization are the lungs?

• A. tissue
• B. organ
• C. cell
• D. organ system

Multiple Choice

A group of cells works together to connect and support various parts of the body. This group of cells can be called a _____.

• an organ
• an organism
• a system
• a tissue

Multiple Choice

The brain is composed, or made of, many different types of cells and tissue. What level of organization is the brain?

• A. organ system
• B. organ
• C. cell
• D. tissue

Multiple Choice

The brain, spinal cord, and nerves are all organs that work together to send messages throughout the body. This is an example of ____.

•  an organ system
• an organ
• a cell
• an organelle

Multiple Choice

Which example below is the most complex part of a multicellular organism?

• A. respiratory system
• B. red blood cell
• C. large intestine
• D. connective tissue

Poll

Did you understand the lesson?

• Yes

• Need extra practice

• Need extra explanation