1. Do Now /16
NEW SEATS! Find your new seat in the blue binder.
Copy down this week’s homework and leave out your planner to be stamped.
Monday
Tuesday
Wednesday
Thursday
Friday
-Study for Learning Check ( ) (10/19)
-Read Embryonic Development pg and reading questions (10/19)
-Finish SF 2.4
-Study for Learning Check ( )
No HW
-Read Plant and Animal Cells the Same But different pg and reading questions (10/25)

2. Blood Cells Red Blood Cells: White Blood Cells:
Bowl shaped and flexible to move through blood vessels (veins and arteries)
Deliver oxygen to the body and remove carbon dioxide
White Blood Cells:
Irregular shape with pseudopodia that help trap invaders
Protect body from invaders

3. Compact Bone Cells Dense and tightly grouped together
Provide support for itself and organism

4. Root Cells Cells are long a tubular Absorb water Anchor the plant
Vascular tissue: xylem and phloem in the middle of the specimen
Xylem moves water and minerals
Phloem moves simple sugars

5. Skeletal Muscle Cells Long and look like fibers bundled together
Pull on tendons attached to bones
Aid in voluntary movement: walking, bending etc.

6. Adipose Cells Large and round cells Make and store fat
Provide insulation to prevent heat loss
Provide protection and support around organs
Store energy

7. Leaf Cells Guard cells regulate stoma
Stoma exchange oxygen and carbon dioxide
Stoma let out water vapor for transpiration
Open during the day
Closed at night

8. Nerve Cells Elongated with branching fibers
Send and receive electrical and chemical messages around body
Dendrites receive signals
Axons send signals to other cells

9. Plant Epidermal Cells Make up outer layer of plant’s body
Act as a boundary
Absorb water and minerals
Protect against transpiration
Regular gas exchange for photosynthesis and cellular respiration

11. Reminder HW: Study for Learning Check (SF 2.3-2.4) (10/19)
PUSH IN YOUR CHAIR!!!

12. Do Now 10/17 2. Clubs please put a textbook at your lab station
Hearts grab Embryonic Development worksheet for whole table group.
2. Clubs please put a textbook at your lab station

13. EMBRYONIC DEVELOPMENT

14. VOCABULARY EMBRYO ZYGOTE FETUS
ORGANISM DEVELOPING BY DIVIDING AND SPECIALIZING CELLS TO FORM THE BASIC BODY PLAN
ZYGOTE
A FERTILIZED EGG, AND THE FIRST FEW CELL DIVISIONS
FETUS
ORGANISM BODY PLAN IS COMPLETE, AND CONTINUES TO GROW AND DEVELOP

15. STEM CELLS VS. DIFFERENTIATED CELLS
EARLY CELLS ARE UNDIFFERENTIATED IN THE EMBRYO
MAY BECOME ANY TYPE OF CELL
CERTAIN GENES ARE TURNED ON OR OFF IN CERTAIN CELLS
THIS DETERMINES WHAT KIND OF CELL IT BECOMES
WHEN EACH CELL DIVIDES, IT MAKES DIFFERENTIATED CELLS LIKE ITSELF
DIFFERENTIATED

17. Differentiated Cells then organize into forming complex tissues, and tissues organize to become organs and systems.
What organ would the intestinal cells form? What system?
What organ would cardiac cells form? What system?

18. EARLY ANIMAL EMBRYOS LOOK SIMILAR WITH GILL SLITS AND LIMB BUDS
Notochord (spine)
Gill Slits
Limb Buds
Eye
Early animal embryos look very similar because most animals have a common ancestor. The gill slits develop into gills in a fish but just become the neck in a chicken. The limb buds become different types of limbs in different animals, depending on what they are adapted for (flying, swimming, walking, etc) They become fins in a fish, but wings in a chicken. Fish and birds both evolved from the same prehistoric animal. The early eye, spine and tail are present in most embryos. Yes, you once had a tail.
We might also point out the drawing/labeling conventions used here are the same as their microscopy conventions.
Tail

19. HOMOLOGOUS STRUCTURES similar in position, structure, and evolutionary origin but not always the same function.
Human Dog Bird Whale
The forearm of a human is used for lifting, but functions as a weight-bearing leg in a dog. In a bird, these same bones give the wing light but strong structure, but shorter and bulkier for strength in a whale flipper because it pushes against water, not air.

20. Reminder HW: Study for Learning Check (SF 2.3-2.4) (10/19)
Finish Reading Questions
PUSH IN YOUR CHAIR!!!

21. Do Now 10/18 2. Keep reading questions with you.
Spades please grab SF 2.4 for your lab group
2. Keep reading questions with you.

22. SF 2.4 Mouse Alligator Zebrafish Chicken Human Notochord (spine)
Gill Slits
Limb Buds
Eye
Tail

27. Reminder HW: Study for Learning Check (SF 2.3-2.4) (10/19)
Finish SF 2.4
PUSH IN YOUR CHAIR!!!

28. Take out Embryonic Development Reading questions and a correcting pen.
Do Now /19
Take out Embryonic Development Reading questions and a correcting pen.

29. Cell Differentiation:
Stem Cells:
Undifferentiated cells. They can become any specialized type of cell.
Cell Differentiation:
The process of stem cells becoming specific specialized cells due to certain genes becoming activated (turned on) and other becoming deactivated (turned off).
Common Ancestor:
An early organism that two different modern organisms descended from over many many generations, through the process of evolution.
Embryo:
The early development stages of an organism, after fertilization.
Homologous:
similar in position, structure, and evolutionary origin but not always the same function.

30. How do stem cells lead to the development of an embryo?
Many stem cells differentiate to become all different specialized cells. These specialized cells continue to develop all the different tissues and structures of the developing organism.
How do specialized cells lead to unique species?
The structures that develop from the specialized cells differ depending on the unique needs of that organism to be adapted to its unique environment.
Why do so many embryos look similar during early stages of development?
Embryos of different organisms may look similar because they evolved from a common ancestor, so early development is the same as this common ancestor’s development.

31. Why do you think some structures change on certain animals and not on others?
Some structures change or disappear because they won’t be needed by the organism when it is fully developed. Other structures continue to develop because they will be needed for the organism’s survival.

32. Why do unicellular organisms divide (perform cell division)?
What determines the size of a multicellular organism? Is it the size of the cells or the number of cells?
The size of an organism is determined mostly by the number of cells, NOT the size of those cells.
Why do unicellular organisms divide (perform cell division)?
Unicellular organisms divide to reproduce.
Why do multicellular organisms cells divide?
The cells of multicellular organisms divide to make more cells for repair or growth.
Your new puppy starts to get bigger in size. Explain what is happening to cause this.
Puppies grow when their cells increase in number. The larger an organism is, the more cells it has.

33. Plickers!
Quiz Time

34. Reminder
HW:
None
PUSH IN YOUR CHAIR!!!

35. Take out a book or homework and silently read.
Do you need more order forms? Donation sheets? Magazine of magazines?
Turn in day is OCT 26th (Next Thursday)

36. Do Now /20
Spades please collect Plant and Animal Cells reading questions for your table group.
Clubs please put a text book at your lab station.

37. Plant and Animal Cells: The Same, but Different

38. Review Life would not exist without cells—cell theory
Basic unit of life
All living things are made of cells
Cells make more cells
Cells have tiny structures inside of them called organelles
Cells can do everything other living organisms can do:
Grow
Take in energy/matter
Respond
Reproduce

39. Prokaryotic Smaller and simpler than Eukaryotic cells
Thousands could fit on the tip of a pin
Bacteria and Archea
Can still perform all functions
Cell Membrane—controls what enters and leaves
Cytoplasm—suspend materials in cells
Ribosomes—proteins are made for cell functions
DNA—determines traits

40. Eukaryotic Larger All multicellular organisms
Unicellular organisms except for Bacteria and Archea
Cells are larger and more complex
Have specialized structures and nucleus

41. Typical Eukaryotic Organelles
Nucleus—control center, holds DNA
Nucleolus—creates ribosomes
Cell Membrane—controls what enters and leaves
Ribosomes—make protein
Cytoplasm—suspends other organelles
Endoplasmic Reticulum (ER)—distributes proteins and other substances between nucleus and cytoplasm
Mitochondria—break down food molecules to make usable energy

42. Typical Eukaryotic Organelles Continued
Vacuoles—store water, food or waste
Golgi Bodies—package ER products and distribute throughout cell
Only in animal cells:
Lysosomes—digest food molecules, remove waste, protect cell from invaders

43. Plant Cell Organelles In addition, plants have specific organelles:
Cell Wall—rigid outer layer that supports the cell
Chloroplast—filled with chlorophyll they photosynthesize
Central Vacuole—large storage organelle for support, stores water, sugar, starch and protein

44. Reminder
HW:
Read Plant and Animal Cells Pg reading questions (10/25)
PUSH IN YOUR CHAIR!!!