Podcast
Questions and Answers
What term is used to describe a group of similar cells that perform a specific function?
What term is used to describe a group of similar cells that perform a specific function?
- Tissue (correct)
- Cellular cluster
- Body system
- Organ
Which of the following is NOT a human organ?
Which of the following is NOT a human organ?
- Leaf (correct)
- Lung
- Brain
- Heart
What process involves cells becoming specialized for particular functions?
What process involves cells becoming specialized for particular functions?
- Cell division
- Cell differentiation (correct)
- Protein synthesis
- Gene replication
What is the function of xylem vessels in plants?
What is the function of xylem vessels in plants?
How do the genes influence the specialization of cells?
How do the genes influence the specialization of cells?
Flashcards
Tissue
Tissue
A group of similar cells working together to perform a specific function.
Organ
Organ
A structure composed of different tissues that work together to perform a specific function.
Cell Differentiation
Cell Differentiation
The process by which cells specialize and develop unique functions, controlled by genes.
Genes and Specialization
Genes and Specialization
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What are some examples of specialized cells?
What are some examples of specialized cells?
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Study Notes
Cell Differentiation
- Cells specialize in different roles depending on their location in an embryo
- Example roles include nerve cells in the spinal cord, and epidermal cells in skin
- Differentiation is controlled by genes
- Cells become specialized to carry out particular functions throughout the organism
Cells, Tissues, and Organs
- Cells with similar functions are grouped together as tissues
- Example tissues include muscle tissue, blood, nervous tissue, and epithelium
- A collection of tissues working together to perform a specific function is called an organ
- Examples of organs in humans are leaves, roots, stems, and flowers in plants.
Cell Growth and Development
- Cells take in food and building materials to grow and increase in size
- This growth occurs through repeated processes
- This growth and development continue throughout the life cycle of the organism
Mitosis and Gene Expression
- All the cells in the body have the same genes
- Cells function differently because they produce different proteins
- Different genes code for making different proteins
- Some genes are switched on or off to create different types of cells
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