* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project
Nawal Said 4/20/16 5th hour All cells have some parts in common. The parts are Plasma membrane – It is the “skin” of the cell. Cytoplasm- The protoplasm inside a cell. Ribosomes- these are structures in the cytoplasm. Protein is made here. DNA- DNA holds genetic directions that cells need to make proteins. All cells live in things that are alive. The Parenchyma plant cell is cubeshaped . It is loosely packed It has thin walls It contains chloroplasts This plant cell is elongated. Collenchyma is more flexible than fibers. They grow with surrounding tissue. During their development, the collenchyma cells have walls which are mainly cellulosic. Cellulosic- a chain of linked sugar molecules that give wood its strength. These types of cells are hard and fragile. Sclerenchyma develop a secondary wall that is made of lignin. Lignin makes it hard. This plant cell is waterproof. This is empty at maturity and dead. Muscle cells are accountable for moving an animal’s limbs and organs Can be skeletal , cardiac, or smooth muscle cells. Skeletal cells are the most common type of muscle cells. Muscle cells are long and shaped like a tube. Main cells of nervous system. Nerve cells receive and deliver messages and signals to the owner or animal. Neuron is another name for nerve cell. Main portion of a nerve cell is the cell body. The white thing in the middle is a white blood cell of an animal. The red ones are red blood cells of an animal. Are split into white and red blood cells. Red blood cells are 99 % of all blood cells. Red blood cells are the only ones with no nucleus. White animal cells help fight off bacteria and sicknesses. Plant cell A plant cell is larger. Can’t change its shape. Nucleus is on one side in the peripheral cytoplasm Lysosomes are rare. Animal cell An animal cell is smaller. Can change its shape. Nucleus usually lies in the Centre Lysosomes always there in animal cells. To sum it up, all cells have some parts in common. They are plasma membrane, cytoplasm DNA, and Ribosomes. Some plant cells are parenchyma, collenchyma, and sclerenchyma . Some animal cells are nerve cells, blood cells, and muscle cells. Though there are many differences between plant and animal cells, here is one: plant cells are larger and animal cells are usually smaller.