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Study Guide – Ponds, Cells, and Protists
Lesson 4 & 12 – Ponds
1. What is an ecosystem? A defined area where living and non-living things interact.
2. List 5 organisms you might find in a pond. Answers vary, possible answers: Daphnia, frog, Lemna, dragonfly,
amoeba, paramecium, euglena etc.
3. What is a habitat? A place where an organisms’ needs are met.
4. Describe how your pond changed over time.
The leaves and hay broke down, more living things were present, number of Lemna, amount of water.
5. Explain how organisms got into your pond.
They were attached to the leaves, straw, and soil in their cyst form, when they had the right conditions they came back
to life in the ponds. They also could have been in the existing pond water.
Lesson 7: Cells
6. What is the difference between prokaryotic and eukaryotic cells?
Prokaryotic cells don’t have membrane bound structures such as nucleus and eukaryotic cells do.
7. What is an organelle? A small structure in a cell that performs a function.
8. List all the organelles we discussed.
Nucleus, cytoplasm, cell membrane, cell wall, chloroplast, ER, Golgi Body, ribosome, lysosome, chromosome, plastid,
mitochondrion, vacuole.
9. What is the function of the nucleus? It holds the DNA and controls the function of the cell.
10. What is the function of the cell membrane? The cell membrane encloses the cell and allows things in and out of the
cell.
11. What is the function of cytoplasm? Cytoplasm fills the cell and supports the organelles.
12. What is the function of a vacuole? The vacuole stores food, water, or waste for the cell.
13. What are the differences between plant and animals cells:
Plant Cells:
Cell wall
Chloroplast
Plastid
Large vacuole
Animal Cells:
Small vacuoles
Irregular shape
14. What is the function of a chloroplast? The chloroplast is where photosynthesis takes place.
15. What is photosynthesis? When carbon dioxide, water, and light are combined to make glucose and oxygen.
Lesson 11—Protists
16. List the 3 main characteristics of protists:
They can be plant-like and/or animal-like, they’re mostly single-celled organisms with a nucleus, and most are aquatic.
17. Describe amoeba: An irregularly shaped aquatic organism that changes shape to move and feed.
a. Structure for movement Pseudopod
18. Describe paramecium: A “slipper” or oval-shaped organism that lives in freshwater. It is one of the most complex
single-celled organisms.
a. Structure for movement Cilia
19. Describe euglena: A bright green organism without a cell-wall that lives in ponds and pools of water, especially those
with lots of chemicals in them. They use their eyespot to find the brightest areas of the environment to
photsynthesize.
a. Structure for movement Flagellum
20. Describe volvox: A round aquatic organism that is green in color.
a. Structure for movement Flagella
Note: Completing only the studying guide is NOT SUFFICIENT. You will also need to study: labs, reading questions,
notes in comp. book, microscope drawing guidelines, and microscope rules (you will be using a microscope for part of
the test).