5. draw exactly what you see for each magnification (zoom - in) level:
four circles labeled 4x, 10x, 40x, 100x
most of these cells are red blood cells. you will see a different - looking cell that is larger and has a dark shape in it. this is white blood cell and it functions to protect your body against disease. if you are sick, you will need more white blood cells to protect your body.
6. if you were fighting an infection, would you have more or less white blood cells? why?
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7. compare: how did the blood cells look different to the plant cells (color, shape, and size)?
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choose other slides to explore under the microscope!
8. explore and draw other slides. write the magnification (zoom - in) and name below.
three circles labeled __x with slide name: below each

Question

Accepted Answer

### Question 6
# Brief Explanations:
When fighting an infection, the body needs to defend against pathogens. White blood cells (WBCs) function to protect the body from disease. So, to combat the infection, the body produces more WBCs to fight off the invading microbes.
# Answer:
You would have more white blood cells. Because white blood cells protect the body against disease, and during an infection, the body needs more of them to fight off the invading pathogens (like bacteria or viruses) causing the infection.

### Question 7
# Brief Explanations:
- **Color**: Blood cells (red blood cells) are typically red (due to hemoglobin), while plant cells may have green (from chlorophyll in chloroplasts) or other colors depending on the plant, but many plant cells are colorless or have varied hues from pigments.
- **Shape**: Red blood cells are biconcave discs (no nucleus in mature RBCs), white blood cells have irregular shapes (and a nucleus). Plant cells have a rigid, rectangular or polygonal shape due to the cell wall.
- **Size**: Red blood cells are smaller (about 7 - 8 μm in diameter), white blood cells are larger (10 - 15 μm or more), and plant cells (e.g., parenchyma) are generally larger (10 - 100 μm) and have a more defined, larger structure with a central vacuole in many cases.
# Answer:
- **Color**: Blood cells (especially red blood cells) are red (from hemoglobin), while plant cells may be green (with chlorophyll) or other colors, or colorless.
- **Shape**: Blood cells (RBCs: biconcave disc; WBCs: irregular) lack a rigid cell wall, so they are more flexible in shape. Plant cells have a rigid, box - like (polygonal/rectangular) shape due to the cell wall.
- **Size**: Blood cells (RBCs ~7 - 8 μm, WBCs ~10 - 15 μm) are generally smaller than many plant cells (e.g., typical plant parenchyma cells ~10 - 100 μm), and plant cells often have a large central vacuole that contributes to their size/shape.

### Question 8
(This is a practical exploration question, so here's a sample response for illustration. The actual drawing and details depend on the slides observed.)

For example:

1. First circle (magnification: 4x, Slide name: Onion Epidermis)
   - Draw: Rectangular cells with distinct cell walls, maybe some cytoplasm and nucleus visible (if stained).
2. Second circle (magnification: 10x, Slide name: Cheek Cells)
   - Draw: Irregular - shaped cells (animal cells) with a nucleus, no cell wall, and a more "blob - like" appearance.
3. Third circle (magnification: 40x, Slide name: Leaf Palisade Cells)
   - Draw: Elongated, closely packed cells with green chloroplasts visible (if the leaf is from a green plant), and a cell wall.

# Answer:
- First slide: Magnification: $4\times$, Slide name: Onion Epidermis (Draw rectangular plant cells with cell walls)
- Second slide: Magnification: $10\times$, Slide name: Cheek Cells (Draw irregular - shaped animal cells with a nucleus)
- Third slide: Magnification: $40\times$, Slide name: Leaf Palisade Cells (Draw elongated plant cells with chloroplasts and cell walls)

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