Practice identifying specialized cells, explaining their jobs, and connecting cell structures to functions in living things.
Read each problem carefully. Use complete sentences when explaining your thinking. Show your work in the space provided.
How cell structures help cells perform specific functions
Biology - Grade 6-8
- 1
A red blood cell has a flexible shape and no nucleus. Its main job is to carry oxygen through the bloodstream. Explain how these features help it do its job.
- 2
A nerve cell, also called a neuron, has long branches that connect to other cells. What job does this shape help the nerve cell perform?
- 3
Muscle cells contain many mitochondria. Explain why muscle cells need so many mitochondria.
- 4
Root hair cells in plants have long, thin extensions that reach into the soil. What substances do root hair cells absorb, and how does their shape help?
- 5
A leaf cell that performs photosynthesis contains many chloroplasts. What is the job of the chloroplasts in this specialized cell?
- 6
White blood cells protect the body from disease. Some white blood cells can change shape and surround germs. Explain how this ability helps the body.
- 7
Sperm cells have a tail-like flagellum and many mitochondria near the base of the tail. How do these structures help sperm cells carry out their job?
- 8
An egg cell is much larger than many other animal cells and contains stored nutrients. Why is this important for its function?
- 9
Skin cells are flat and fit closely together. What job does this arrangement help skin cells perform?
- 10
Ciliated cells line parts of the respiratory system. They have tiny hair-like structures called cilia that move back and forth. What job do ciliated cells perform?
- 11
Xylem cells in plants are tube-like cells that help move water upward from the roots. Explain how their structure supports this function.
- 12
Guard cells are found around tiny openings in leaves called stomata. They can change shape to open or close the stomata. Why is this important for the plant?
- 13
Compare a nerve cell and a red blood cell. Describe one way their structures are different and explain how each difference matches its job.
- 14
A student says, "All cells in a multicellular organism do the same job because they all have cell membranes and cytoplasm." Explain why this statement is incorrect.
- 15
Choose one specialized cell from this worksheet and write a short explanation of how its structure is related to its function.