Warm – up 8/18-19/2015

- Essentials: stem cell research rubric.- Warm-Up:

- Sit with your group for the debate. You will have 20 minutes to collaborate with each other.

Agenda DOL: Scholars will be able to understand ethically debates around stem

cell research and identify tissue types. Homework: continue reading Chap. 5, Connective tissue IP,

Debate reflection essay (1pg. Double spaced, pen)

- Announcements:- Reflection due and Lab on Thurs/Fri- Connective Tissue IP due Monday- Test August 28th

HeLa Cellshttps://www.youtube.com/watch?v=y38pgPY6Zq0

A HeLa cell (also Hela or hela cell) is a cell type in an immortal cell line used in scientific research. It is the oldest and most commonly used human cell line.

The line was derived from cervical cancer cells taken from Henrietta Lacks, a patient who eventually died of her cancer on October 4, 1951.

Article on Henrietta Lacks

HeLa Cells Debate Intro

https://www.youtube.com/watch?v=y38pgPY6Zq0

http://science.howstuffworks.com/life/cellular-microscopic/hela-cell.htm

Rules of Debate

Timer set for 30 minutes Counts as a quiz grade! Review rubric!

Debate Reflection

For homework tonight, I want you to write a reflection paper of our debate.

Your responses must be thoughtful and reflective

IB Traits: REFLECTIVE, COMMUNICATOR

4 types of tissues

1. epithelial tissue 2. connective tissue 3. muscle tissue 4. nervous tissue

Epithelial tissue includes…

1. layers of cells that cover internal or external surfaces

2. glands

Some important characteristics are…

1. cells are close together 2. a free surface exposed to environment

or internal chamber/passageway. 3. attachment to basement membrane

provides barrier 4. no blood vessels (avascular) 5. continually replaced and regenerated

Functions of epithelia…

1. Provide physical protection 2. Control permeability

What comes in and out 3. provide sensation 4. produce specialized secretions

Exocrine= secretions released to surface of skin

Endocrine= secretions released as hormones into tissue fluid & blood

Warm – up 8/20-21/2015

- Essentials: Epithelial Chart, Cheek cell lab, exit ticket slip - Warm-Up:

- Turn in your reflective essay (staple to rubric)- Label the tissue types (Tissues IP)

Agenda DOL: Scholars will be able to identify epithelial and tissue types by cell

structures. Lab: Cheek cells and epithelial layers

Homework: Tissue Poster Reading Chap. 5, Connective tissue IP

- Announcements:- Quiz Monday- Connective Tissue IP due Monday- Tissue Posters (DUE WEDNESDAY)- Test August 28th / Review on Wednesday

Epithelial cells are classified by amount of layers and shape…

Simple = one layer

stratified = multiple layers

Pseudostratified = looks like multiple layers

Squamous = thin/flat

Cuboidal = shaped like a cube or hexagon (6)

Columnar = long and skinny

Ciliated = contain cilia

LAYERS SHAPE

An example…

One layer with tall and skinny cells Simple columnar

Multi-layered and square shaped Stratified cuboidal

Pseudostratified Ciliated Columnar Location: respiratory tract (nasal cavity,

larynx, trachea, bronchi) Function: cilia moves mucus across the

surface of the cells, protection

Glands

Endocrine glands – secrete hormones directly into the bloodstream Hormones are chemical messengers that

influence cells in the rest of the body Exocrine glands – use different processes

to release secretions Ex: sweat glands, mammary glands,

salivary glands

The purposes of Connective Tissue…

Bind (hold things together) Support & protect Fill spaces Store fat Produce blood cells

Locations: Widely distributed throughout the

body Facts:

Good blood supply Farther apart than epithelial cells Connected with matrix

Exit Tickets

1. a single layer of cells that are thin and flat are called:2. a multi-layered group of cells that are long and skinny are:3. a single layer of square cells4. What connective tissue is responsible for storage of energy?

SHOUT OUTS!

Warm – up 8/20-21/2015

- Essentials: Types of epithelial tissue, sheet of legal paper, quiz sheet, Tissue review packet (1per table) CLASS SET!

- Warm-Up: - At your table review types of tissues and their function. 5 minutes- QUIZ TODAY!

Agenda DOL: Scholars will be able identify tissue types and relate its structure to function by location.

Homework: Tissues posters (quiz grade)

- Announcements:- Test August 28th

- Test review Wednesday come prepared!

Classification of Connective Tissue1. Connective tissue proper

a. Loose connective tissuei. Areolarii. Adiposeiii. Reticular

b. Dense connective tissue

2. Supporting connective tissuea. Cartilageb. Bone

3. Fluid connective tissuea. Blood

1.a. Loose Connective Tissue lies under skin, connect it to organs,

provides blood supply The body’s “packing material”

1.a.i. Areolar

Function: Protects tissues and organs, binds epithelia to deeper tissue

Location: dermis (skin)

1.a.ii. Adipose

Function: stores energy, insulates & cushions

Location: subcutaneous layer (deep to skin), surrounding organs

1.a.iii. Reticular

Function: provides support to lymphatic system organs

Location: spleen, lymph nodes, thymus, bone marrow

1.b. Dense Connective Tissue very STRONG, used to bind parts

together Function: attaches bone to bone

(ligaments), muscle to bone (tendon) Location: ligaments, tendons

1.b. Dense Connective Tissue

Ligaments Connects BONE to BONE

Tendons Connect MUSCLES to bone

2.a. Cartilage

Function: Protects, absorbs shock (in joints)

Location: tip of nose, ends of long bones, intervertebral discs, external ear

2.b. Bone

very rigid, heals quicker than cartilage Function: provides support (more than

cartilage) and levers for movement Location: bones of the body

3.a. Blood

Function: helps transport and maintain internal environment

Location: blood vessels, heart

Tissue Rotations and Cheek cell Lab

Station Expectations

One group at each station 2 min at each station Rotate clockwise

Tissue Posters

Four types of tissue Location of tissue Purpose/function of each tissue Classification of tissue Memory Device (How you will remember each

type) Drawing of each type of tissue Creativity/color Neatness

This will count as a quiz grade!