70
Lesson 70 of 84 · Heredity
ExperimentChromosomes: Packages of DNA (Part 4)
What You'll Learn
Cell organelles each have specific functions. The mitochondria produce energy, the ribosome makes proteins, the endoplasmic reticulum processes molecules, and the Golgi apparatus packages them.
Key Words
- mutation
- natural selection
Materials Needed
- ruler
- scissors
- microscope (or magnifying glass)
- slides
- onion skin
Safety First
- Use materials only as directed in the experiment.
- Keep small objects away from young children.
- Work in a well-ventilated area when using vinegar or other strong-smelling substances.
Steps
Step 1 — Read
Read and learn: Cell organelles each have specific functions. The mitochondria produce energy, the ribosome makes proteins, the endoplasmic reticulum processes molecules, and the Golgi apparatus packages them.
Step 2 — Do
Create a labeled diagram of what you built or observed.
Step 3 — Observe
Compare the before and after states.
Step 4 — Record
Write your conclusion: did the results match your hypothesis?
Check Your Understanding
Question 1
1 of 3How many chromosomes do human body cells have?