The long cellular extensions that propel cells are called flagella and cilia. They are composed of microtubules and are used by cells for movement and sensory functions. Flagella are typically longer and found singly or in small numbers, while cilia are shorter and found in large numbers on the cell surface.
Cilia are the motile cellular extensions found in large numbers in some epithelial cells. These hair-like structures help move fluid and particles along the cell surface, aiding in processes such as mucociliary clearance in the respiratory tract.
The small bumps shown in the photomicrograph are likely to be cellular protrusions called microvilli. Microvilli are found on the surface of some epithelial cells and serve to increase their surface area for absorption and secretion of substances.
Root hairs are extensions of root epidermis cells that help increase the surface area of the root for improved absorption of water and nutrients from the soil.
Microvilli are slender extensions of the plasma membrane that increase its surface area. They are found in cells involved in absorption, such as in the small intestine, where they help in increasing the efficiency of nutrient absorption.
The short extensions of the cell wall are called microvilli. They are found on the surface of some cells and serve to increase surface area for absorption and secretion of substances.
cilia
Cilia are cellular projections that move substances along the surface of epithelial cells. They beat in a coordinated manner to propel mucus and other substances across the epithelial surface, aiding in functions such as mucus clearance in the respiratory tract.
The long cellular extensions that propel cells are called flagella and cilia. They are composed of microtubules and are used by cells for movement and sensory functions. Flagella are typically longer and found singly or in small numbers, while cilia are shorter and found in large numbers on the cell surface.
Cilia are the motile cellular extensions found in large numbers in some epithelial cells. These hair-like structures help move fluid and particles along the cell surface, aiding in processes such as mucociliary clearance in the respiratory tract.
Yes, a higher surface area to volume ratio is more efficient for cellular activity because it allows for faster exchange of substances with the environment, such as nutrients and waste products. This is important for processes like cellular respiration and nutrient uptake.
Cilia and flagella are the cellular organelles located on the cell surface that protrude from the cell and beat or vibrate. They are involved in various cellular functions such as movement, sensing the environment, and moving substances across the cell surface.
Microvilli
Cilia are hair-like structures found on the surface of many cells in the body. They play a role in moving fluids over the cell surface, such as in the respiratory tract to clear mucus and in the reproductive system to move eggs through the fallopian tubes. Cilia are composed of microtubules and are anchored in a structure called the basal body.
True. Microvilli are fine hairlike extensions on the surface of some cells that increase the cell's surface area for absorption and secretion.
Molten substances that appear at the surface of the Earth include lava, which is molten rock that flows out of volcanoes during eruptions, and magma, which is molten rock beneath the Earth's surface. These molten substances can solidify into igneous rock as they cool.
Microvilli are small, finger-like projections on the surface of a cell membrane that increase its surface area. This allows for greater absorption and secretion of molecules such as nutrients or enzymes. Microvilli are especially prominent in cells involved in absorption, such as in the cells lining the small intestine.