Educational worksheet on cells for students to complete, featuring questions about cell structure and function.
Worksheet titled "Cells" with fill-in-the-blank questions about cell biology, including topics like cell types, organelles, and cell functions.
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Show Answer Key & Explanations
Step-by-step solution for: DOC) Bill Nye Genes Video Worksheet | Jayla Crockett - Academia.edu
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Show Answer Key & Explanations
Step-by-step solution for: DOC) Bill Nye Genes Video Worksheet | Jayla Crockett - Academia.edu
Let’s go through each question one by one. I’ll think carefully and check my answers before giving you the final list.
---
1. Three things that are found in all cells:
All living cells — whether plant, animal, or bacteria — have these basic parts:
- Cell membrane (controls what goes in/out)
- Cytoplasm (jelly-like stuff inside where reactions happen)
- Genetic material (DNA — tells the cell how to work)
✔ So:
A. Cell membrane
B. Cytoplasm
C. DNA (or genetic material)
---
2. Three things found ONLY in some types of cells (not all):
These are special features only certain cells have:
- Cell wall → plants, fungi, bacteria (not animals!)
- Chloroplasts → only plant cells and some protists (for photosynthesis)
- Large central vacuole → mostly plant cells
✔ So:
A. Cell wall
B. Chloroplasts
C. Large central vacuole
*(Note: You could also say “mitochondria” but those are actually in almost ALL eukaryotic cells — so better to pick things truly limited to some cell types.)*
---
Now let’s do the fill-in-the-blanks:
3. All living things are made up of ________.
→ Cells! That’s the basic unit of life.
✔ Answer: cells
---
4. A collection of cells working together to make one type of job is called a ________.
→ That’s a tissue! Like muscle tissue or nerve tissue.
✔ Answer: tissue
---
5. ________ use sunlight to make food.
→ Only organisms with chloroplasts can do this — mainly plants and algae.
✔ Answer: Plants (or “Plant cells” — but since it says “use sunlight”, probably meaning whole organisms)
Wait — looking at context, this is about cells. But sentence says “______ use sunlight...” — likely refers to organisms. Still, in cell biology context, we might say “Plant cells”.
But let’s see next questions — they’re all about cell structures. Hmm.
Actually, re-reading: “________ use sunlight to make food.” — This is describing an ability. In biology, we say “Photosynthetic organisms” or simply “Plants”. But since this is a cell worksheet, maybe they want “Chloroplasts”? No — chloroplasts don’t “use” sunlight — they contain the machinery. The *cell* uses them.
Best answer here: Plant cells
But wait — standard phrasing in middle school bio: “Plants use sunlight to make food.”
I think for consistency with level, go with:
✔ Answer: Plants
*(If teacher expects “plant cells”, that’s okay too — but “plants” fits better grammatically.)*
---
6. Only ________ (plant/animal) cells have a cell wall.
→ Plant cells have cell walls; animal cells do not.
✔ Answer: plant
---
7. The cell theory states that cells are the ________ of the basis of life.
Wait — wording seems off. Standard cell theory says:
“Cells are the basic unit of structure and function in living things.”
So blank should be: basic unit
But sentence says: “the ________ of the basis of life” — that sounds redundant. Maybe typo? Probably meant: “cells are the ________ of life” or “basic building blocks”.
Looking at common versions:
“The cell is the basic unit of life.”
So perhaps: basic unit
✔ Answer: basic unit
*(Assuming slight wording error in worksheet.)*
---
8. Cells come from other cells through ________. They must reproduce and divide.
→ Process is called cell division. Specifically, mitosis for body cells.
But general term: cell division
✔ Answer: cell division
---
9. Viruses are neither prokaryotic nor eukaryotic because ________.
→ Viruses aren’t cells at all! They don’t have cytoplasm, organelles, or ability to reproduce on their own.
✔ Answer: they are not cells
---
10. Mitochondria are known as the ________ of the cell.
→ Powerhouse! Because they make energy (ATP).
✔ Answer: powerhouse
---
11. The nucleus contains the cell’s ________.
→ DNA / genetic material / chromosomes
✔ Answer: DNA (or “genetic material”)
---
12. Some animals only have ________ cell.
→ Wait — this doesn’t make sense. All animals are multicellular except… actually, no single-celled animals. Protists like amoeba are not animals.
Hmm — maybe typo? Perhaps meant: “Some organisms only have one cell” → unicellular.
Or maybe: “Some animals only have ________ cells” — still unclear.
Wait — look again: “Some animals only have ________ cell.”
Possibility: Maybe it’s “Some organisms only have one cell” — but it says “animals”.
Another idea: Perhaps it’s referring to red blood cells in mammals — which lack nuclei? But that’s not “only have”.
Wait — maybe it’s miswritten. Common fact: “Some organisms are unicellular” — but again, not animals.
Hold on — perhaps it’s: “Some animals only have ________ cells” meaning specialized cells? Doesn’t fit.
Alternative interpretation: Maybe it’s “Some animals only have [one type of] cell” — no, false.
Wait — I recall: Human red blood cells don’t have nuclei — but that’s not “only have”.
Perhaps it’s a trick? Or typo for “organisms”?
Given context, most likely intended question:
“Some organisms only have one cell.” → Unicellular organisms.
But it says “animals”. Animals are all multicellular.
Unless... there are no unicellular animals. So maybe answer is “no” or “zero”? Not helpful.
Wait — another thought: Maybe it’s “Some animals only have ________ cell” meaning during early development? No.
Let me skip and come back.
Actually — upon second look, perhaps it’s: “Some animals only have ________ cells” — still vague.
Wait — maybe it’s “Some animals only have somatic cells” — no.
I think there may be a typo. Best guess based on common curriculum:
Perhaps meant: “Some organisms only have one cell.” → Then answer: one
But since it says “animals”, and all animals are multicellular, maybe answer is “many” — but that contradicts “only have”.
Alternatively — perhaps it’s “Some animals only have ________ type of cell” — no.
Wait — here’s a possibility: In some contexts, people say “some animals only have epithelial cells” — no.
I think safest bet: Assume it’s a mistake, and they mean “organisms”. So:
✔ Answer: one
*(With note: If strictly “animals”, then none — but that’s unlikely for this level.)*
---
13. Do all cells have genes?
→ Yes! All living cells have DNA, which contains genes.
Even bacteria have genes. Viruses have genetic material but aren’t cells.
So for cells — yes.
✔ Answer: Yes
---
14. ________ will tell us what to do.
→ Genes! Or DNA. Instructions for making proteins, controlling cell activities.
✔ Answer: Genes (or “DNA”)
---
15. Cells are the ________ of life.
→ Basic unit
✔ Answer: basic unit
---
16. Organs are ________.
→ Made of tissues working together. Example: heart, liver.
✔ Answer: made of tissues
---
17. ________ need water daily to keep our bodies functioning properly.
→ Humans? Organisms? Since previous questions are about cells, but this is broader.
Probably: Humans or We
But in science context: Living things or Organisms
Most accurate: All living things
But simple answer: We
✔ Answer: We *(assuming human perspective)*
---
18. Our skin is made up of many different types of ________.
→ Tissues! Epithelial, connective, etc.
✔ Answer: tissues
---
19. ________ is the only way to see a cell.
→ Microscope!
✔ Answer: Using a microscope
---
20. ________ would work best to fight infection and disease.
→ White blood cells! Part of immune system.
✔ Answer: White blood cells
---
21. The only kinds of cells that cannot be replaced are ________.
→ Nerve cells (neurons) in humans — generally don’t regenerate after damage.
Also, heart muscle cells to some extent — but neurons are classic example.
✔ Answer: nerve cells (or “neurons”)
---
Now let’s compile all answers neatly.
Final check: Did I miss any? Let’s count.
Questions 1–21 covered.
For Q12, I went with “one” assuming typo. If teacher insists on “animals”, then technically no animal is unicellular — but that would make question invalid. So “one” is best educational answer.
Similarly, Q5: “Plants” is fine.
Q7: “basic unit” — even if wording awkward.
Okay — ready for final answer.
──────────────────────────────────────
Final Answer:
1. A. Cell membrane
B. Cytoplasm
C. DNA
2. A. Cell wall
B. Chloroplasts
C. Large central vacuole
3. cells
4. tissue
5. Plants
6. plant
7. basic unit
8. cell division
9. they are not cells
10. powerhouse
11. DNA
12. one
13. Yes
14. Genes
15. basic unit
16. made of tissues
17. We
18. tissues
19. Using a microscope
20. White blood cells
21. nerve cells
---
1. Three things that are found in all cells:
All living cells — whether plant, animal, or bacteria — have these basic parts:
- Cell membrane (controls what goes in/out)
- Cytoplasm (jelly-like stuff inside where reactions happen)
- Genetic material (DNA — tells the cell how to work)
✔ So:
A. Cell membrane
B. Cytoplasm
C. DNA (or genetic material)
---
2. Three things found ONLY in some types of cells (not all):
These are special features only certain cells have:
- Cell wall → plants, fungi, bacteria (not animals!)
- Chloroplasts → only plant cells and some protists (for photosynthesis)
- Large central vacuole → mostly plant cells
✔ So:
A. Cell wall
B. Chloroplasts
C. Large central vacuole
*(Note: You could also say “mitochondria” but those are actually in almost ALL eukaryotic cells — so better to pick things truly limited to some cell types.)*
---
Now let’s do the fill-in-the-blanks:
3. All living things are made up of ________.
→ Cells! That’s the basic unit of life.
✔ Answer: cells
---
4. A collection of cells working together to make one type of job is called a ________.
→ That’s a tissue! Like muscle tissue or nerve tissue.
✔ Answer: tissue
---
5. ________ use sunlight to make food.
→ Only organisms with chloroplasts can do this — mainly plants and algae.
✔ Answer: Plants (or “Plant cells” — but since it says “use sunlight”, probably meaning whole organisms)
Wait — looking at context, this is about cells. But sentence says “______ use sunlight...” — likely refers to organisms. Still, in cell biology context, we might say “Plant cells”.
But let’s see next questions — they’re all about cell structures. Hmm.
Actually, re-reading: “________ use sunlight to make food.” — This is describing an ability. In biology, we say “Photosynthetic organisms” or simply “Plants”. But since this is a cell worksheet, maybe they want “Chloroplasts”? No — chloroplasts don’t “use” sunlight — they contain the machinery. The *cell* uses them.
Best answer here: Plant cells
But wait — standard phrasing in middle school bio: “Plants use sunlight to make food.”
I think for consistency with level, go with:
✔ Answer: Plants
*(If teacher expects “plant cells”, that’s okay too — but “plants” fits better grammatically.)*
---
6. Only ________ (plant/animal) cells have a cell wall.
→ Plant cells have cell walls; animal cells do not.
✔ Answer: plant
---
7. The cell theory states that cells are the ________ of the basis of life.
Wait — wording seems off. Standard cell theory says:
“Cells are the basic unit of structure and function in living things.”
So blank should be: basic unit
But sentence says: “the ________ of the basis of life” — that sounds redundant. Maybe typo? Probably meant: “cells are the ________ of life” or “basic building blocks”.
Looking at common versions:
“The cell is the basic unit of life.”
So perhaps: basic unit
✔ Answer: basic unit
*(Assuming slight wording error in worksheet.)*
---
8. Cells come from other cells through ________. They must reproduce and divide.
→ Process is called cell division. Specifically, mitosis for body cells.
But general term: cell division
✔ Answer: cell division
---
9. Viruses are neither prokaryotic nor eukaryotic because ________.
→ Viruses aren’t cells at all! They don’t have cytoplasm, organelles, or ability to reproduce on their own.
✔ Answer: they are not cells
---
10. Mitochondria are known as the ________ of the cell.
→ Powerhouse! Because they make energy (ATP).
✔ Answer: powerhouse
---
11. The nucleus contains the cell’s ________.
→ DNA / genetic material / chromosomes
✔ Answer: DNA (or “genetic material”)
---
12. Some animals only have ________ cell.
→ Wait — this doesn’t make sense. All animals are multicellular except… actually, no single-celled animals. Protists like amoeba are not animals.
Hmm — maybe typo? Perhaps meant: “Some organisms only have one cell” → unicellular.
Or maybe: “Some animals only have ________ cells” — still unclear.
Wait — look again: “Some animals only have ________ cell.”
Possibility: Maybe it’s “Some organisms only have one cell” — but it says “animals”.
Another idea: Perhaps it’s referring to red blood cells in mammals — which lack nuclei? But that’s not “only have”.
Wait — maybe it’s miswritten. Common fact: “Some organisms are unicellular” — but again, not animals.
Hold on — perhaps it’s: “Some animals only have ________ cells” meaning specialized cells? Doesn’t fit.
Alternative interpretation: Maybe it’s “Some animals only have [one type of] cell” — no, false.
Wait — I recall: Human red blood cells don’t have nuclei — but that’s not “only have”.
Perhaps it’s a trick? Or typo for “organisms”?
Given context, most likely intended question:
“Some organisms only have one cell.” → Unicellular organisms.
But it says “animals”. Animals are all multicellular.
Unless... there are no unicellular animals. So maybe answer is “no” or “zero”? Not helpful.
Wait — another thought: Maybe it’s “Some animals only have ________ cell” meaning during early development? No.
Let me skip and come back.
Actually — upon second look, perhaps it’s: “Some animals only have ________ cells” — still vague.
Wait — maybe it’s “Some animals only have somatic cells” — no.
I think there may be a typo. Best guess based on common curriculum:
Perhaps meant: “Some organisms only have one cell.” → Then answer: one
But since it says “animals”, and all animals are multicellular, maybe answer is “many” — but that contradicts “only have”.
Alternatively — perhaps it’s “Some animals only have ________ type of cell” — no.
Wait — here’s a possibility: In some contexts, people say “some animals only have epithelial cells” — no.
I think safest bet: Assume it’s a mistake, and they mean “organisms”. So:
✔ Answer: one
*(With note: If strictly “animals”, then none — but that’s unlikely for this level.)*
---
13. Do all cells have genes?
→ Yes! All living cells have DNA, which contains genes.
Even bacteria have genes. Viruses have genetic material but aren’t cells.
So for cells — yes.
✔ Answer: Yes
---
14. ________ will tell us what to do.
→ Genes! Or DNA. Instructions for making proteins, controlling cell activities.
✔ Answer: Genes (or “DNA”)
---
15. Cells are the ________ of life.
→ Basic unit
✔ Answer: basic unit
---
16. Organs are ________.
→ Made of tissues working together. Example: heart, liver.
✔ Answer: made of tissues
---
17. ________ need water daily to keep our bodies functioning properly.
→ Humans? Organisms? Since previous questions are about cells, but this is broader.
Probably: Humans or We
But in science context: Living things or Organisms
Most accurate: All living things
But simple answer: We
✔ Answer: We *(assuming human perspective)*
---
18. Our skin is made up of many different types of ________.
→ Tissues! Epithelial, connective, etc.
✔ Answer: tissues
---
19. ________ is the only way to see a cell.
→ Microscope!
✔ Answer: Using a microscope
---
20. ________ would work best to fight infection and disease.
→ White blood cells! Part of immune system.
✔ Answer: White blood cells
---
21. The only kinds of cells that cannot be replaced are ________.
→ Nerve cells (neurons) in humans — generally don’t regenerate after damage.
Also, heart muscle cells to some extent — but neurons are classic example.
✔ Answer: nerve cells (or “neurons”)
---
Now let’s compile all answers neatly.
Final check: Did I miss any? Let’s count.
Questions 1–21 covered.
For Q12, I went with “one” assuming typo. If teacher insists on “animals”, then technically no animal is unicellular — but that would make question invalid. So “one” is best educational answer.
Similarly, Q5: “Plants” is fine.
Q7: “basic unit” — even if wording awkward.
Okay — ready for final answer.
──────────────────────────────────────
Final Answer:
1. A. Cell membrane
B. Cytoplasm
C. DNA
2. A. Cell wall
B. Chloroplasts
C. Large central vacuole
3. cells
4. tissue
5. Plants
6. plant
7. basic unit
8. cell division
9. they are not cells
10. powerhouse
11. DNA
12. one
13. Yes
14. Genes
15. basic unit
16. made of tissues
17. We
18. tissues
19. Using a microscope
20. White blood cells
21. nerve cells
Parent Tip: Review the logic above to help your child master the concept of bill nye video worksheet.
