- Which is the longest nerve cell?
- Who discovered cell?
- Is a cell the smallest living thing?
- What is the cell powerhouse?
- Which is the largest cell in living world?
- Who is the smallest cell?
- What is the smallest cell in human body?
- What was the first cell?
- Is a virus a cell?
- Which is the largest and smallest cell?
- Which is largest animal cell?
- Which is longest cell in human body?
- What is the lifespan of RBC?
Which is the longest nerve cell?
The longest axons in the human body, for example, are those of the sciatic nerve, which run from the base of the spine to the big toe of each foot.
These single-cell fibers may extend a meter or even longer..
Who discovered cell?
Robert HookeInitially discovered by Robert Hooke in 1665, the cell has a rich and interesting history that has ultimately given way to many of today’s scientific advancements.
Is a cell the smallest living thing?
The cell is the smallest structural and functional unit of living organisms, which can exist on its own. Therefore, it is sometimes called the building block of life. Some organisms, such as bacteria or yeast, are unicellular—consisting only of a single cell—while others, for instance, mammalians, are multicellular.
What is the cell powerhouse?
Mitochondria – The Powerhouse of the Cell.
Which is the largest cell in living world?
Biologists used the world’s largest single-celled organism, an aquatic alga called Caulerpa taxifolia, to study the nature of structure and form in plants. It is a single cell that can grow to a length of six to twelve inches.
Who is the smallest cell?
Answer: A cell is described as the smallest, basic unit of life in charge of all the processes of life. The Cerebellum’s Granule Cell is the smallest cell in the human body that is between 4 micrometers to 4.5 micrometers long.
What is the smallest cell in human body?
spermThe sperm is the smallest cell in human biology, but also one of the most complex. The egg meanwhile is the largest cell and similarly intricate. Looking further out into the natural world, the diversity of these sex cells, or gametes, is truly remarkable. Most species have two gametes, which we term male and female.
What was the first cell?
That one cell is called the Last Universal Common Ancestor (LUCA). It probably existed around 3.5 billion years ago. LUCA was one of the earliest prokaryotic cells. It would have lacked a nucleus and other membrane-bound organelles.
Is a virus a cell?
Because they can’t reproduce by themselves (without a host), viruses are not considered living. Nor do viruses have cells: they’re very small, much smaller than the cells of living things, and are basically just packages of nucleic acid and protein.
Which is the largest and smallest cell?
The smallest cell is Mycoplasma (PPLO-Pleuro pneumonia like organims). It is about 10 micrometer in size. The largest cells is an egg cell of ostrich. The longest cell is the nerve cell.
Which is largest animal cell?
ostrich eggsLargest animal cell is ostrich eggs measuring about 170*135 mm in diameter.
Which is longest cell in human body?
Neurons or nerve cells can be up to 3 feet long. A typical neuron has a cell morphology called soma, hair-like structures called dendrites and an axon. Neurons are specialized in conveying knowledge throughout the body. The sensory neurons, motor neurons, and interneurons are three types of neurons.
What is the lifespan of RBC?
approximately 115 daysHuman red blood cells (RBC), after differentiating from erythroblasts in the bone marrow, are released into the blood and survive in the circulation for approximately 115 days. In humans and some other species, RBC normally survive in a nonrandom manner.