Cell Organelle Notes-Answers.pdf | Study notes Cell Biology | Docsity - Free Printable
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Step-by-step solution for: Cell Organelle Notes-Answers.pdf | Study notes Cell Biology | Docsity
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Show Answer Key & Explanations
Step-by-step solution for: Cell Organelle Notes-Answers.pdf | Study notes Cell Biology | Docsity
Let’s go through each row in the table and check if the information is correct or needs fixing — especially since one entry has a big mistake.
---
1. Cytoplasm
- Function: “material inside the cell membrane—not including the nucleus” → ✔ Correct.
- Location: “Between the cell membrane & the nucleus” → ✔ Correct.
- Found in Plant or Animal: “Both” → ✔ Correct.
→ This row is fine.
---
2. Cytosol
- Function: “Jelly-like substance that fills the cell & surrounds the organelles” → ✔ Mostly correct, but note: cytosol is actually the *liquid part* of the cytoplasm (without organelles). But for basic level, this is okay.
- Location: “Between the cell membrane & the nucleus” → ✔ Same as cytoplasm — acceptable at this level.
- Found in Plant or Animal: “Both” → ✔ Correct.
→ This row is acceptable for middle school level.
---
3. Nucleus
- Function: “The center of the atom which contains the protons and neutrons; in cells, structure that contains the cell's genetic material (DNA) and controls the cell's activities”
⚠️ BIG MISTAKE HERE!
It says “center of the atom” — that’s wrong! The nucleus is NOT part of an atom in this context — we’re talking about *cells*, not atoms. In cells, the nucleus holds DNA and controls the cell. The phrase “center of the atom” belongs to atomic physics, not biology.
✔ Fix: Remove “The center of the atom which contains the protons and neutrons;” — it doesn’t belong here.
Corrected function should be:
> “Structure that contains the cell's genetic material (DNA) and controls the cell's activities”
- Location:
- Animal: “Right in the center of the cell” → ✔ Generally true.
- Plant: “off to the side of the vacuole” → ✔ Also generally true because plant cells have large central vacuoles that push the nucleus to the side.
- Found in Plant or Animal: “Both” → ✔ Correct.
→ So only the function needs correction.
---
4. Nuclear Envelope
- Function: “Layer of two membranes that surrounds the nucleus of a cell” → ✔ Correct.
- Location: “Between the nucleus & cytoplasm (outside of the nucleus)” → ✔ Correct — it’s the boundary around the nucleus.
- Found in Plant or Animal: “Both” → ✔ Correct.
→ This row is fine.
---
5. Chromatin
- Function: “Granular material visible within the nucleus; consists of DNA tightly coiled around proteins” → ✔ Correct.
- Location: “Inside the nucleus” → ✔ Correct.
- Found in Plant or Animal: “Both” → ✔ Correct.
→ This row is fine.
---
6. Chromosome
- Function: “Threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next” → ✔ Correct.
- Location: “Inside the nucleus” → ✔ Correct (during interphase; they condense during division, but still considered nuclear).
- Found in Plant or Animal: “Both” → ✔ Correct.
→ This row is fine.
---
Only one error: In the Nucleus row, under Function, remove the part about “center of the atom...”. That’s mixing up biology with chemistry/physics.
---
Final Answer:
The only incorrect part is in the "Nucleus" row under "Function". It should NOT say “The center of the atom which contains the protons and neutrons;” — that is wrong. The corrected function is: “Structure that contains the cell's genetic material (DNA) and controls the cell's activities.” All other rows are correct.
---
1. Cytoplasm
- Function: “material inside the cell membrane—not including the nucleus” → ✔ Correct.
- Location: “Between the cell membrane & the nucleus” → ✔ Correct.
- Found in Plant or Animal: “Both” → ✔ Correct.
→ This row is fine.
---
2. Cytosol
- Function: “Jelly-like substance that fills the cell & surrounds the organelles” → ✔ Mostly correct, but note: cytosol is actually the *liquid part* of the cytoplasm (without organelles). But for basic level, this is okay.
- Location: “Between the cell membrane & the nucleus” → ✔ Same as cytoplasm — acceptable at this level.
- Found in Plant or Animal: “Both” → ✔ Correct.
→ This row is acceptable for middle school level.
---
3. Nucleus
- Function: “The center of the atom which contains the protons and neutrons; in cells, structure that contains the cell's genetic material (DNA) and controls the cell's activities”
⚠️ BIG MISTAKE HERE!
It says “center of the atom” — that’s wrong! The nucleus is NOT part of an atom in this context — we’re talking about *cells*, not atoms. In cells, the nucleus holds DNA and controls the cell. The phrase “center of the atom” belongs to atomic physics, not biology.
✔ Fix: Remove “The center of the atom which contains the protons and neutrons;” — it doesn’t belong here.
Corrected function should be:
> “Structure that contains the cell's genetic material (DNA) and controls the cell's activities”
- Location:
- Animal: “Right in the center of the cell” → ✔ Generally true.
- Plant: “off to the side of the vacuole” → ✔ Also generally true because plant cells have large central vacuoles that push the nucleus to the side.
- Found in Plant or Animal: “Both” → ✔ Correct.
→ So only the function needs correction.
---
4. Nuclear Envelope
- Function: “Layer of two membranes that surrounds the nucleus of a cell” → ✔ Correct.
- Location: “Between the nucleus & cytoplasm (outside of the nucleus)” → ✔ Correct — it’s the boundary around the nucleus.
- Found in Plant or Animal: “Both” → ✔ Correct.
→ This row is fine.
---
5. Chromatin
- Function: “Granular material visible within the nucleus; consists of DNA tightly coiled around proteins” → ✔ Correct.
- Location: “Inside the nucleus” → ✔ Correct.
- Found in Plant or Animal: “Both” → ✔ Correct.
→ This row is fine.
---
6. Chromosome
- Function: “Threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next” → ✔ Correct.
- Location: “Inside the nucleus” → ✔ Correct (during interphase; they condense during division, but still considered nuclear).
- Found in Plant or Animal: “Both” → ✔ Correct.
→ This row is fine.
---
Summary of Corrections Needed:
Only one error: In the Nucleus row, under Function, remove the part about “center of the atom...”. That’s mixing up biology with chemistry/physics.
---
Final Answer:
The only incorrect part is in the "Nucleus" row under "Function". It should NOT say “The center of the atom which contains the protons and neutrons;” — that is wrong. The corrected function is: “Structure that contains the cell's genetic material (DNA) and controls the cell's activities.” All other rows are correct.
Parent Tip: Review the logic above to help your child master the concept of cell organelles and their functions worksheet.
