Cell Processes & Levels of organization

May 17th, 2017

Warm-up: Thursday 1. Name an organ system in your body and what its function is. What organs make up this organ system?

2. List the following in order, from simple to complex: cell, organ, tissue, and organ system.

Cell, tissue, organ, organ system

How cells work together study guide 1. Describe osmosis & diffusion. In your answer include how and why particles move. Osmosis is the movement of water through the cell membrane while diffusion is the movement of all other molecules. Particles move from high areas of concentration to low areas of concentration. They move based on the size of the molecules

How cells work together study guide 2. What is homeostasis? How does it help the human body?

Homeostasis an organism's ability to maintain a stable environment. It helps the body by regulating its temperature so it doesn’t get too cold or overheat.

How cells work together study guide 3. What is mitosis? Explain its purpose.

The process in which cells make more body cells. Its purpose is for growth, repair and renewal.

How cells work together study guide 4. What is the difference between mitosis & binary fission?

Mitosis is used with multicellular organisms to create new body cells while binary fission is the process unicellar organisms go through when reproducing into clones of themselves.

How cells work together study guide 5. How are the different levels of organization organized?

cells tissues organsOrgan system organism

How cells work together study guide 6. Identify & explain the four types of tissue and give an example of each.

1. Epithelial - Provides the protective lining to several organs and covers the entire outside of the body.

2. Connective - Provides support & structure; connect one kind of tissue to another.

3. Nerve - Send messages from the brain & spinal cord to all parts of the body.

4. Muscle - Contracts & relaxes to allow the body the perform voluntary and involuntary functions.

How Cells Work Together Flow ChartComplete the graphic organizer with your knowledge of the different levels of organization.

Fill out as much information as you remember.

Level 1: Cells

Level 1: CellDefinition: smallest unit of lifeExamples:

● Cheek lining cells● smooth muscle cells

Illustration:

Level 2: TissueDefinition: specialized cells that are similar in structure and function that join together. Examples: epithelial (protective), connective, nerve & muscle

Illustration:

Level 3: OrganDefinition: 2 or more different tissues that work together. Examples: brain, kidneys, heart, large intestine, etc.

Illustration:

Level 4: Organ SystemDefinition: A group of organs working together to perform a specific function for the organism. Examples: Respiratory System, Digestive System, etc.

Illustration: (See next Slide)

Body Systems

Illustration:

Level 5: OrganismDefinition: a body system that carries out all of the basic functions of life. Examples: frog, humans, mouse, etc. Illustration: (to right)

Directions for Baseball Review: All students will be divided into 2 teams.

Students will “bat” by being asked review questions related to minerals, rocks and the rock cycle, or soil.If they answer the question correctly, students will roll the dice to determine if they take their base/out. If they get the question incorrect the are out and must take a seat.

ES Review Baseball 2: Single 8: Single3: Out 9: Double4: Triple 10: Strike5: Strike 11: Triple6: Homerun 12: Out7: Out

Team Blue Team Orange

Strikes Outs

Question 1: What determines if particles will diffuse through a cell?

SizeLift for Answer

Question 2: What is the purpose of mitosis?

Growth, repair & renewalLift for Answer

Question 4: What are the four types of tissue?

Epithelial, Nerve, Muscle, & Connective Lift for Answer

Question 4: From simple to complex, what are the levels of organization?

Cells, Tissues, Organs, Organ Systems, & Organisms Lift for Answer

Question 5: What is the process the unicellular organisms go through to reproduce?

Binary FissionLift for Answer

Question 6: In a multicellular organism, such as a fish, which of these items is composed of all the others?

a. Tissuesb. Organsc. Cellsd. Organ systems

Question 7: The heart, brain, and stomach are made up of groups of:

a. organellesb. organ systems. c. tissues.

d. blood

Question 8: A group of organs that work together to perform a specific job is called?

a. Organismb. Organ systemsc. Tissuesd. Helper Organs

Question 9: This type of tissue provides the protective lining to several organs and covers the entire outside of the body.

Epithelial Lift for Answer

Question 10: Name the process unicellular organisms go through when reproducing into clones of themselves

Binary Fission Lift for Answer

Question 11: What is the importance of homeostasis?

It helps humans to regulate their body temperature so that we do not

overheat/freeze

Lift for Answer

Question 12: Explain mitosis.

The process of cell division in multicelluar organisms where body cells make more body

cells. Lift for Answer

Question 13: The movement of molecules from areas of higher concentration to areas of lesser concentration is?

Diffusion

Lift for Answer

Question 14: This type of tissue contracts and relaxes to allow voluntary and involuntary movement of your skeleton.

Muscle Tissue

Lift for Answer

Question 15: What process is ability to maintain a stable environment inside the body?

Homeostasis

Lift for Answer