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Questions and Answers
What is the primary function of muscle cells?
What is the term for the cells that make up bone tissue?
Which of the following is an example of a small-sized cell?
What is the term for reproductive cells?
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What is the function of nerve cells?
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Which type of muscle cell is found in the heart?
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What is the shape of endothelial cells?
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What is the function of fat cells?
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What is the main function of endothelial cells?
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What type of cells can develop into many different types of cells?
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What is the function of pancreatic cells?
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What is the shape of red blood cells?
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What is the primary function of fat cells?
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What type of cells make up bone tissue?
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Study Notes
Cell Shape
- Cell shape is genetically related to its location and function in the body
- Examples of cell shapes:
- Round: white blood cells
- Elongated: muscle cells
- Spherical: red blood cells
- Spindle shape: endothelial cells
- Branched: nerve cells
Types of Cells
- Stem cells: can develop into many different types of cells
- Blood cells: produced through hematopoiesis, include red blood cells, white blood cells, and platelets
- Fat cells: store lipids for energy, produce and secrete hormones, and release heat energy
- Endothelial cells: found in the lining of blood vessels, lymph vessels, and the heart, control blood fluidity, platelet aggregation, and vascular tone
- Pancreatic cells: synthesize, store, and release insulin into the bloodstream
- Bone cells: osteoblasts, osteoclasts, osteocytes, and osteoprogenitor cells, each with a unique function
- Muscle cells: skeletal, smooth, and cardiac muscle cells, create a pulling force to stabilize or move parts of the body
- Nerve cells: receive and send messages from the body to the brain and back to the body, consist of cell body, axon, and dendrites
- Sex cells: reproductive cells, sperm cell in male and ovum in female
- Cancer cells: differ from normal cells in many ways
Cell Size
- Cell size is variable in living organisms, ranging from 1 micrometer to a few centimeters
- Examples of cell sizes:
- Small size: less than 10 μm, e.g. erythrocytes, lymphocytes
- Middle size: 10 to 30 μm, e.g. chondrocytes, osteoblasts
- Big size: cells over 30 μm, e.g. human ova, ostrich egg
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Description
Explore the genetic relation between cell shape and size with their location and function in the body, including different types of cell shapes.
