Let’s go through each question one by one, using what we know about plant and animal cells.
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1. Identify the structure labelled B, which is a justification for considering diagram 1 as a plant cell?
Diagram 1 is labeled “Plant Cell”. Structure B points to the outermost layer of that cell — which is thick and rigid. In plant cells, this is the
cell wall, which animal cells don’t have. So B =
Cell Wall.
✔ Answer:
Cell Wall
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2. The structure labeled A is present in all prokaryotic and eukaryotic cells. The structure is ......
Structure A points to the very thin outer boundary of both cells (inside the cell wall in the plant cell). This is the
cell membrane — it controls what goes in and out of the cell. All living cells have this.
✔ Answer:
Cell Membrane
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3. The organelle labeled F is responsible for life on this planet and animal cells lack this organelle. The organelle is......
F points to green oval structures inside the plant cell only. These are
chloroplasts — they do photosynthesis, making food and oxygen for life on Earth. Animal cells don’t have them.
✔ Answer:
Chloroplast
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4. This is the physical basis of life where all organelles are present. The site labeled C is ...
C points to the jelly-like stuff filling the cell — where everything floats around. That’s the
cytoplasm.
✔ Answer:
Cytoplasm
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5. The structure labeled E is called “CPU of the cell” where the genetic material resides. It is the .....
E points to the big round thing with dots inside — that’s the
nucleus. It holds DNA and controls the cell — like a CPU!
✔ Answer:
Nucleus
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6. The structure labeled G give rise to spindle fibers and exclusively seen in animal cell. The structure is called ......
G points to two small dots near the nucleus in the animal cell — these are
centrioles. They help during cell division by forming spindle fibers. Plant cells usually don’t have them.
✔ Answer:
Centriole
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7. The organelle H is the “power house of the cell” in all eukaryotes where ATP is synthesized. The organelle ......
H points to bean-shaped structures with folds inside — found in both cells. These are
mitochondria — they make energy (ATP).
✔ Answer:
Mitochondrion (or Mitochondria)
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8. It is the site of synthesis of secretory proteins. The organelle labeled I is ....
I points to stacked flattened sacs near the nucleus — that’s the
Golgi apparatus. It packages and ships proteins made by the cell.
✔ Answer:
Golgi Apparatus
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9. It is the site of lipid biosynthesis and drug detoxification. The organelle labeled J is ...
J points to network of tubes — that’s the
smooth endoplasmic reticulum (SER). It makes lipids and helps break down toxins.
✔ Answer:
Smooth Endoplasmic Reticulum
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10. Unlike animal cells, plant cells possess cell wall and large vacuole. In the diagram, it is labeled as ......
The large empty-looking space in the plant cell is the
vacuole — stores water and keeps the cell firm. Labeled as
D.
✔ Answer:
D
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Final Answer:
1. Cell Wall
2. Cell Membrane
3. Chloroplast
4. Cytoplasm
5. Nucleus
6. Centriole
7. Mitochondrion
8. Golgi Apparatus
9. Smooth Endoplasmic Reticulum
10. D
Parent Tip: Review the logic above to help your child master the concept of labeling plant and animal cells worksheet.
