Cell Structure and Tissue Types Quiz

Cell Structure and Tissue Types

• Enzymes catalyze reactions by binding substrates to their active sites, temporarily changing shape.
• Plasma membrane is extremely thin (6nm - 10nm) and composed of lipids, proteins, and carbohydrates.
• Transport processes include diffusion, osmosis, facilitated diffusion, active transport, endocytosis, and exocytosis.
• Osmotic flow depends on the tonicity of the solution: isotonic, hypotonic, or hypertonic.
• The nucleus is the control center of the cell, surrounded by a double membrane and contains nuclear pores.
• Microvilli increase the surface area of the plasma membrane, found on cells that absorb materials.
• Cilia are long extensions of the plasma membrane, used for movement or sensing.
• Ribosomes manufacture proteins and exist as free or fixed types.
• Endoplasmic reticulum is a network of intracellular membranes with functions like synthesis, storage, transport, and detoxification.
• Mitochondria provide energy for the cell through energy-producing reactions.
• Tumors can be benign or malignant, with the latter spreading through invasion and metastasis.
• Cellular differentiation occurs when specific genes are turned off, resulting in specialized cells and tissues.
• Epithelial, connective, muscle, and nervous tissues are the four major tissue types in the body, each with specific characteristics and functions.

Cell Structure and Tissue Types

• Enzymes catalyze reactions by binding substrates to their active sites, temporarily changing shape.
• Plasma membrane is extremely thin (6nm - 10nm) and composed of lipids, proteins, and carbohydrates.
• Transport processes include diffusion, osmosis, facilitated diffusion, active transport, endocytosis, and exocytosis.
• Osmotic flow depends on the tonicity of the solution: isotonic, hypotonic, or hypertonic.
• The nucleus is the control center of the cell, surrounded by a double membrane and contains nuclear pores.
• Microvilli increase the surface area of the plasma membrane, found on cells that absorb materials.
• Cilia are long extensions of the plasma membrane, used for movement or sensing.
• Ribosomes manufacture proteins and exist as free or fixed types.
• Endoplasmic reticulum is a network of intracellular membranes with functions like synthesis, storage, transport, and detoxification.
• Mitochondria provide energy for the cell through energy-producing reactions.
• Tumors can be benign or malignant, with the latter spreading through invasion and metastasis.
• Cellular differentiation occurs when specific genes are turned off, resulting in specialized cells and tissues.
• Epithelial, connective, muscle, and nervous tissues are the four major tissue types in the body, each with specific characteristics and functions.