1. CELLS
The Basic Unit of Life

2. Cells are living things.
Lamprey

3. Focus Questions-Copy. What is a cell?
How do plant cells and animals cells differ? How are they similar?
How is our school like a cell?
What would happen if one of the parts of a cells was not functioning?

4. Cells make up all living things.

5. Cells Make up Plants

6. Until the invention of the microscope in 1683, scientists knew very little about cells. Today we know that cells are the building blocks of life. These building blocks join together to make living things. Cells are composed of tiny organelles that carry out specific jobs and functions to run the cell. Without the cell parts, the cell would not exist.

7. Robert Hooke discovered the first cells
Robert Hooke discovered the first cells. Cork Cells were thought to have been these cells. Anton von Leeuwenhoek was first to observe one celled living things. Examples of these were bacteria and parameciums.

8. Cell Definition:
The basic unit of life.
Can you think of reasons why cells need nutrition and a good environment?

9. Cells produce tissues Tissues produce organs Organs produce organ systems Organs systems produce organisms Thinking Map?

10. Plants and animals cells have many of the same type of structures
Plants and animals cells have many of the same type of structures. These structures perform the same type of activities. Plants and animals cells have some structures that are not the same. These structures perform different activities, but necessary to it’s particular cell.

11. Why do you think that all students need to have an understanding of the parts of a cell and the differences between the parts found in plant and animal cells?

12. Do comparison to body lesson.
Then discuss parts of a cell.
Then compare to school lesson.
Create a cell
Human Cells-Inv 4

13. Types of Cells:
Prokaryotic-cells without nuclei (bacteria is one common example)
Eukaryotic-more complex cells; contain nuclei

14. Parts of a plant cell Cell Wall Chloroplast Cytoplasm Mitochondrion Endoplasmic Reticuleum Nucleus Vacuole

15. Definitions and plant cell parts.
Cytoplasm-gel like substance found in a cell
Chloroplasts-a green structure in a plant
Cell Wall-a stiff covering that protects plant cells
Nucleus-control center of the cell
Chromosomes-provides direction for cell to follow
Endoplasmic Reticulum-transportation network
Mitchondrion-produces energy in the cell
Vacuole-cell storage sac for food, waste and water

16. Parts of the animal cell and definition.
Vacuole-cell storage sac for food,waste, and water
Mitochondria –produces energy in a cell
Chromosomes-provides direction for cells to follow
Nucleus-control center of a cell
Endoplasmic Reticulum--transporation system
Cytoplasm-gel like substance found in a cell
Cell Membrane-surrounds cell material

17. Cells also carry out diffusion,passive transport active transport and osmosis.
Diffusion-movement of gases from higher concentrations to lower concentrations
Passive Transport-materials do not need energy to move from higher concentration to lower to a lower concentration
Active Transport-materials need energy to move from a higher concentration to lower concentration
Osmosis-water moving from higher concentration to a lower concentration

18. How can one cell develop into a plant or animal?
Mitosis- forms identical cells
Meiosis-one half the number of forms cells with chromosomes