The shape of a cell dictates the function of that cell. This is more pertinent to animal cells that, unlike plant cells, do not have a rigid cell wall. A misshapen cell cannot properly perform its intended function.Know More
Cells are the essential building blocks of all living things. Neurons are a prime example of a cell with a specific shape that perform a single but vital function. They are long and thin with many branches. They have a very distinctive appearance with a long, trailing axon with branches at the end and a neuron surrounded by branching dendrites. Their function is to carry electrical signals to and from the body and the brain.
Size as well as shape plays a crucial role in cell function. A cell must be big enough to contain all the essentials, which include DNA strands, protein, and survival and reproductive structures. However, the cell must be small enough to have a large enough surface area in relation to volume to absorb enough nutrients to support its functions and to dispose of waste products. Larger cells have a larger surface area. However, large cells have less surface area in relation to volume than their smaller counterparts.Learn more about Cells
Pollen grains carry the sexual cells of plants from one flower to another. According to Pacific Union College, plants produce cells that give rise to pollen in each of four pollen sacs residing on each of the flower's anthers. Each pollen-producing cell divides, producing four discrete pollen grains. The sperm cells found in the pollen fertilize the ova found in female flowers, initiating development of the new plant.Full Answer >
The main function of muscle cells is to produce contractions of the muscle. Impulses are sent through the nervous system along the muscle cells and cause the muscle to contract.Full Answer >
The main function of mitochondria is the production of ATP through cellular respiration. Other functions of mitochondria include heat production, programmed cell death, regulation of the metabolic activity in a cell and the storage of calcium.Full Answer >
The two main functions of the genetic material in a cell, also known as DNA, are gene expression and replication. DNA accomplishes gene expression by providing the instructions necessary for cell machinery to make proteins. Replication occurs when the DNA makes a copy of itself for incorporation into a new cell.Full Answer >