They need to fit in through even the smallest capillaries
To maximise the surface area for absorbing oxygen, the shape is called biconcave.
circulatory (red blood cells are a distorted shape instead of circular)
The shape of the chief cells of the smooth muscles is cigar shaped.
Animal cells are circular. Plant cells are rectangular.
No - they have very different shapes in order to perform their specific functions. Nerve cells are long with branched 'dendrites' at the end. There are many different blood cells, one of which - red blood cells - are almost circular with an indent in the middle.
smooth muscle cells are spindle shaped
The shape of the human red blood cells is that it is biconcave in shape.
The shape of the chief cells of the frogs red blood cells is that they are biconcave in shape.
The red blood cells that transport oxygen in the blood are circular in shape with the center compressed - kind of like a donut, but where the hole would be is a "well" of tissue. It is shaped like this because this shape increases the surface area of the cell and allows it to carry more oxygen. The shape makes it more efficient.
the red cell is responsible for carrying oxygen to the cells of the body and taking up carbon dioxide and returning it to the lungs so it can be released from the body. red blood cells a circular and biconcave in shape ,they are are elastic and so can pass through any small capillaries making the blood flow easy They turn red from oxygen reacting with the hemoglobin in them. A sickler's red blood cells are semi-circular.
White blood cells in our body change their shape.
It has more to do with the rigid cell wall in a plant cell allows it to keep shape whereas animal cells can change shape freely. In theory, plant cells are like building blocks that make up the molecular system of a plant, so the inside of a plant is very organized. But, in an animal, the animal is alive and unpredictable, so the cells are very messy and sloppy. In fact, animal cells don't even always have a circular shape, they can be oval or not even make sense at all.
Skeletal muscle cells are kind of shaped like straws. They are long and skinny.