Podcast Beta
Questions and Answers
What is the primary component of thick filaments?
Which of the following best describes intermediate filaments?
In what form is carbohydrate usually stored within cells?
Which of the following structures serves as the major site for lipid storage in the body?
Signup and view all the answers
What type of filament is formed from actin?
Signup and view all the answers
Which of the following staining methods is used to visualize glycogen in tissues?
Signup and view all the answers
Which type of intermediate filament is specifically found in epithelial cells?
Signup and view all the answers
Why can't lipids be demonstrated by standard H&E staining?
Signup and view all the answers
What is one primary function of ribosomes in a cell?
Signup and view all the answers
Where are ribosomes primarily formed within the cell?
Signup and view all the answers
Which type of ribosomes is associated with the rough endoplasmic reticulum (rER)?
Signup and view all the answers
What are microtubules primarily composed of?
Signup and view all the answers
How do microtubules change their length?
Signup and view all the answers
Which part of the ribosome is occupied by the newly formed polypeptide chain?
Signup and view all the answers
What is the size range of ribosomes?
Signup and view all the answers
Which form of ribosomes is primarily found in immature cells like stem cells?
Signup and view all the answers
What structure is responsible for the formation of cilia?
Signup and view all the answers
Which of the following statements correctly describes centrioles?
Signup and view all the answers
What is the main function of cilia on the cell surface?
Signup and view all the answers
Each centriole has a specific structure made up of microtubules. How many triplets of microtubules make up one centriole?
Signup and view all the answers
What is the role of the basal body in cilia formation?
Signup and view all the answers
Why are centrioles not found in non-dividing cells such as RBCs and nerve cells?
Signup and view all the answers
Which component grows upward to form the shaft of a cilium?
Signup and view all the answers
How are cilia structurally important for their function?
Signup and view all the answers
Study Notes
Cell Organelles
- Centrioles are small cylindrical structures found near the nucleus in an area called the centrosome.
- Centrioles are involved in cell division and the formation of cilia and flagella.
- Cilia are hair-like projections that move fluids and particles along the cell surface.
- Cilia develop from centrioles and consist of a shaft, a basal body, and rootlets.
- Flagella are long cilia that provide motility, such as the tail of a sperm cell.
-
Filaments are thread-like structures that contribute to the cytoskeleton, maintaining cell shape.
- Microfilaments are thin filaments made of actin, found in muscle and microvilli.
- Intermediate filaments have a diameter of 8-10nm and come in various types found in different cell types.
- Thick filaments are made of myosin and are found in skeletal muscle.
Cell Inclusions
-
Stored food includes carbohydrates and lipids.
- Carbohydrates are stored as glycogen in the liver and muscles.
- Lipids are stored as droplets or globules, primarily in fat cells.
- Pigments are colored substances found in cells.
Non-Membranous Cell Organelles
-
Ribosomes are small organelles responsible for protein synthesis.
- Free ribosomes are scattered in the cytoplasm.
- Polyribosomes are groups of ribosomes connected by mRNA.
- Attached ribosomes are bound to the endoplasmic reticulum.
-
Cytoskeleton is a network of filaments that gives the cell its shape and allows for movement.
- Microtubules are hollow tubes made of tubulin that provide structural support and participate in intracellular transport.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Explore the fascinating world of cell organelles and inclusions in this quiz. Learn about the roles of centrioles, cilia, flagella, and various types of filaments, as well as the importance of stored food like carbohydrates and lipids. Test your knowledge on the structures that maintain cell function and shape.
