1. 7th Grade Review

2. Review Questions
Compare and contrast sexual and asexual reproduction. What are the advantages and disadvantages of each?
What is cell theory?
What is the difference between a prokaryotic cell and a eukaryotic cell?
Compare and contrast an animal cell and plant cell.
What is the function of the following cell organelles
Cell Wall, Cell Membrane, Mitochondria, Golgi Bodies, Endoplasmic Reticulum, Lysosome, Ribosome, Nucleus, Vacuole, Chloroplasts, Cytoplasm
What is stimulus and response? Give an example of both an internal and external stimulus.

3. Sexual vs. Asexual Reproduction
2 parents
Egg and Sperm cell necessary
Advantages:
Create diverse offspring
More likely to adapt
Disadvantages:
Time consumed due to courting mate.
Asexual:
1 parent
Offspring are identical copy of parent
Advantages:
Very efficient/less time to reproduce
Disadvantages:
Uniform population
Not going to be able to adapt.

4. Cell Theory
Cells are the building block of life. Simplest form of life.
All living things are composed of cells.
All cells come from pre-existing cells

5. Cells Prokaryote Eukaryote No nucleus Simple organisms Bacteria
cells that have a nucleus
More complex organisms

6. Animal Cell vs. Plant Cell
The Plant Cell contains the following structures that an Animal Cell does not:
Chloroplasts (for photosynthesis)
Cell Wall
Both plant and animal cells have a vacuole but the plant cells vacuole is larger than the animal cell.

7. Organelle Function Cell Wall Rigid outer layer of the plant cell.
Cell Membrane
The gatekeeper. Allows material to pass in and out of the cell.
Mitochondria
The powerhouse of the cell. Gives the cell energy to function.
Golgi Bodies
Packages and distributes material brought from the ER
Endoplasmic Reticulum
The highway. Transports material around the cell.
Lysosome
Cleans the cell. Breaks down food, waste, and worn out parts of the cell.
Ribosome
Makes Protein
Nucleus
Brain of the cell, contains all the genetic material of the cell.
Vacuole
Stores food, waste, etc.
Chloroplasts
Aids in photosynthesis for plant cells
Cytoplasm
Gel-like substance that contains the organelles

8. Stimulus vs. Response
Stimulus- an environmental change that influences the activity of a living organism or one of its parts.
Response- an organisms reaction to the stimulus.
Ex.
Internal Stimulus- stomach growls so you eat.
External Stimulus- a person scares you, so you scream and run away.