1. Cells and Tissues

2. Cells and Tissues
Carry out all chemical activities needed to sustain life
Cells are the building blocks of all living things
Tissues are groups of cells that are similar in structure and function

3. Anatomy of the Cell Cells are not all the same
All cells share general structures
Cells are organized into three main regions
_________
_______ __________
Figure 3.1a

4. The Nucleus ________ _______ of the cell
Contains genetic material (_____)
Three regions
__________
_________
Figure 3.1b

5. Nucleoli Nucleus contains one or more nucleoli
Sites _________ production
Ribosomes then migrate to the cytoplasm through ________ ________
The singular of nucleoli is _________

6. Chromatin Composed of _______ and _________
Scattered throughout the nucleus
Chromatin condenses to form _________ when the cell divides

7. Plasma Membrane Barrier for cell contents
Double phospholipid layer (____________)
____________ heads
____________ tails
Also contains protein, _____________, and _______________
PRESS
TO PLAY
MEMBRANE STRUCTURE ANIMATION

8. Plasma Membrane
Figure 3.2

9. Cytoplasm Material outside the nucleus and inside the plasma membrane
__________
Fluid that suspends other elements
Metabolic machinery of the cell
Inclusions
Non-functioning units

10. Cytoplasmic Organelles
Figure 3.4

11. Cytoplasmic Organelles
Ribosomes
Made of ___________ and ______
Sites of _________ synthesis
Found at two locations
Free in the __________
Attached to________endoplasmic reticulum

12. Cytoplasmic Organelles
_________________ ____________(ER)
Fluid-filled _________ for carrying substances
Two types of ER
Rough Endoplasmic Reticulum
Studded with_________
Site where building materials of cellular membrane are formed
Smooth Endoplasmic Reticulum
Functions in _________ synthesis and breakdown, ____ metabolism, and ______________of drugs

13. Cytoplasmic Organelles
_____________ ___________
___________ and packages proteins
Produces different types of packages
Secretory vesicles
Cell membrane components
Lysosomes

14. Golgi Apparatus
Figure 3.6

15. Cytoplasmic Organelles
____________
Contain enzymes that digest nonusable materials within the cell
Membranous sacs of oxidase _______
Detoxify harmful substances
Break down _______ ________ (highly reactive chemicals)
Replicate by pinching in half

16. Cytoplasmic Organelles
_____________
“____________” of the cell
Change shape continuously
Carry out reactions where oxygen is used to break down food
Provides ______ for cellular energy

17. Cytoplasmic Organelles
Cytoskeleton
Network of protein structures that extend throughout the cytoplasm
Provides the cell with an internal framework
Figure 3.7a

18. Cytoplasmic Organelles
Cytoskeleton
Three different types
Microfilaments
Intermediate filaments
Microtubules
Figure 3.7b–d

19. Cytoplasmic Organelles
Centrioles
Rod-shaped bodies made of microtubules
Direct formation of ________ spindle during cell division (__________)

20. Cellular Projections Not found in all cells Used for movement
________ moves materials across the cell surface
Ex: ___________
___________ propels the cell

21. Cell Diversity
Figure 3.8a–b

22. Cell Diversity
Figure 3.8c

23. Cell Diversity
Figure 3.8d–e

24. Cell Diversity
Figure 3.8f–g