1. Biology I Mr. Nettles

2. Agenda- Wednesday, August 24, 2011

Warm Up 5 min

Review Activity 10 min

Daily Lesson 20 min

Wrap Up (in teams) 10 min

Begin Homework 15 min

3. Todays Objectives

I will define the words:vacuole, cell wall, chloroplast, and centriole.

I will define and describe the primary organelles of eukaryotic cells.

I will articulate the differences between plant and animal cells.

4. Warm-Up

Define organelle.

Identify two differences between the ER and the Golgi apparatus.

Which organelle is responsible for breaking down dying organelles and food particles within cells?

5. Review : Come up with a school-related analogy for the different parts of the cell

Nucleus - Central Office

Nucleolus -Guidance Office

Cytoplasm - ?

Cell membrane - ?

Ribosome - ?

Endoplasmic Reticulum - ?

Golgi apparatus - ?

Mitochondria - ?

Lysosomes - ?

6. Plant Cells vs. Animal Cells 7. Vacuoles(what they both have)

Definition :

• fluid-filled sac

• • Small in animal cells

• • Large in plant cells

Function :

• Used to store materials needed by the cell like water, food and enzymes

• • Supports heavy structures like leaves and flowers in plants

8. Organelles found ONLY in Plants: Cell Walls Chloroplasts 9. Cell Wall

Definition :

• A rigid layer that surrounds the cell membrane

Function :

• To provide support and protection for the cell

• • The cell walls of multiple cells can attach to one another to support the organism

• • Cell walls are made of different materials depending on the organism

*Note:Cell wallsare also foundin prokaryotic cells .

10. Cell wall 11. Chloroplasts

Definition:

• Are organelles that have adouble membraneandstacks of disc-like shapes containing chlorophyll

Function :

• Use energy from the sunlight to make food for the cell through the process of photosynthesis

• • Chlorophyll gives plants their green color

• • Like mitochondria because it provides energy

12. Chloroplast 13. PLANT CELL Cell wall Large vacuole Chloroplast 14. Organelle found ONLY in Animals: Centrioles 15. Centrioles

Definition:

• Are barrel-shaped organelles composed mostly of microtubules

Function :

• Organize and transfer chromosomes and other organelles during Meiosis and Mitosis

• Serve as the construction point for cellular microtubules

*Note:Centriolesare also foundin some prokaryotic cells .

16. Centriole 17. Small vacuole Centriole 18. Wrap-Up

Get in teams of two or three people.

Take out a sheet of paper to write your answers.

In the questions that follow, your team needs to Name that Organelle.

19. Question 1

Im a real powerhouse

Thats plain to see

I break down food

To release energy

What am I? ______________________

20. Question 2

Im strong and stiff

Getting through me is tough

Im found only in plants

But I guess thats enough

What am I? _____________________

21. Question 3

Im the brain of the cell

Or so they say

I regulate cell activities

From day to day

What am I? ____________________

22. Question 4

Found only in plant cells,

Im green as can be

I make food for the plant

Using the suns energy

What am I? ______________________

23. Question 5

Im a series of tubes

Found throughout the cell

I transport proteins

And other things as well

What am I? ___________________

24. Question 6

Im full of holes

Flexible and thin

I control what gets out

And what comes in

What am I? _________________

25. Question 7

Proteins are made here

Even though Im quite small

You can find me in the cytoplasm

Or attached to E.R.s wall

What am I? ______________________

26. Question 8

Ive been called a storage tank

By those with little taste

Im a sac filled with water

Food, enzymes, or waste

What am I? ______________________

27. Question 9

Since I contain many enzymes,

I can digest an injured cell;

And can break down a large molecule

Into a smaller one as well

What am I? ______________________