The important point is that the surface area to the volume ratio gets smaller as the cell gets larger. Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume.
Answer:
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
Persons with Blood Type A have A type antigens and B type antibodies.
Answer:
Plant cells have chloroplasts because they make their own food. Plant cells have a cell wall so that they do not burst when the central vacu
ole fills up with water. ... Each organelle has it's own specific fun
ction to help the cell survive. The nucleus of a eukaryotic cell directs the cell's activities and stores DNA.
Explanation:
Answer and Explanation:
Function of the skeletal muscle:
Skeletal muscles move the body. Its compression pull on ligaments, which are appended to bones. In the event that withdrawal of the muscle makes the muscle abbreviate, the bone and, in this way, the movement of the body part occurs.
Structure of the skeletal muscle:
It's appended deep down and shapes a particular organ of muscle tissue, veins, ligaments, and nerves that covers our bones and permits movement. Skeletal muscles frequently exist two by two, whereby one muscle is the essential mover and different goes about as an antagonist.