Identify Tissues Under Microscopy
Use visible microscope features such as fibers, layers, spaces, and cell shape to identify tissue.
- Use a reference chart: Indicators and microscope features must be compared to a known guide.
- Structure and function: Students connect visible features to what tissues or molecules do.
Prerequisites are inferred: pending teacher review.
Re-learn the skill with worked practice and clear examples.
Match the visible feature to the tissue type: packed sheet = epithelial, scattered cells in a matrix = connective, fibers = muscle, cell body with extensions = nervous.
A slide shows a few cells spread far apart inside a large amount of background matrix. Which tissue type is shown?
Approved| Tissue type | What it looks like under the microscope |
|---|---|
| Epithelial | Cells packed tightly into a continuous sheet that lines a surface, with almost no space between cells |
| Connective | A few scattered cells spread out in a large background material (matrix); includes bone (hard matrix) and blood (liquid matrix) |
| Muscle | Long fiber-shaped cells; skeletal muscle = parallel striped (striated) fibers, cardiac muscle = branching fibers that connect to each other |
| Nervous | A cell body with long thin extensions (like wires) reaching out from it |
- A.Epithelial tissue
- B.Connective tissue
- C.Muscle tissue
- D.Nervous tissue
Show the worked solution ▾
Answer: B. Connective tissue
- Step 1: Name the feature: The key feature is scattered cells sitting in a large background material (matrix).
- Step 2: Look it up in the table: The table lists 'scattered cells in a matrix' under connective tissue: the same row that includes bone and blood.
Why it's right: Scattered cells in a matrix is the defining look of connective tissue, the group that includes bone and blood.
- A: Epithelial tissue is a packed sheet, not scattered cells.
- C: Muscle is fiber-shaped, not scattered cells in a matrix.
- D: Nervous tissue is a cell body with extensions, not scattered cells in a matrix.
Aligned to BRE: identify tissue type from microscopy · reading level ~grade 9
- In Unit 1.2 Master the Morgue, this skill turns class evidence into a result another person can check.
Fill these in as you work through the lesson.
- Tissue (a group of similar cells doing one job):
- Epithelial tissue (packed sheet that lines or covers):
- Connective tissue (scattered cells in a matrix (bone, blood)):
- Muscle tissue (fibers that contract):
- Nervous tissue (cell body with long extensions):
- Matrix (the background material cells sit in):
- Striated (striped):
A tightly packed sheet of cells is tissue. Scattered cells in a matrix (including bone and blood) is tissue. Striped or branching fibers are tissue. A cell body with long extensions is tissue.
- Which tissue type has cells packed into a continuous sheet with almost no space between them?
- Bone and blood are both which tissue type, even though one is hard and one is liquid?
- How can you tell cardiac muscle from skeletal muscle by looking at the fibers?
A slide shows long striped fibers lying parallel to each other, with no branching. Name the tissue type and give the visible feature that decided it. (Answer: skeletal muscle: parallel striated fibers that do not branch.)