Question: Which Is The Largest Cell In Human Body Class 9?

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..

Which blood cell is largest in size?

MonocytesMonocytes are the largest cells of the blood (averaging 15–18 μm in diameter), and they make up about 7 percent of the leukocytes.

Which is the smallest animal cell?

Mycoplasma gallicepticumThe smallest cell is Mycoplasma gallicepticum. It is about 10 micrometer in size. The largest cells is an egg of ostrich.

Who is the longest cell?

– In the human body, the nerve cell is the longest cell. Nerve cells are also called neurons that are found in the nervous system. They can be up to 3 feet long.

Which cell is largest cell in human body?

ovumThe largest cell is ovum in the human body. The ovum also called egg cell is the reproductive cell in the female body. Ovum is 20 times bigger than the sperm cells and has a diameter of about 0.1 mm.

Who 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 is the longest nerve cell?

The longest axons in the human body are those of the sciatic nerve, which run from the base of the spinal cord to the big toe of each foot. The diameter of axons is also variable. Most individual axons are microscopic in diameter (typically about one micrometer (µm) across).

Which is the largest and longest cell in human body?

The human egg (ovum) is the largest cell in the body and a nerve cell is the longest cell in the human body. The sperm is the smallest cell in human biology, but also one of the most complex.

Is nerve cell the largest cell in human body?

Different shapes and sizes are due to different functions performed by different cells. … The longest cell is the nerve cell. The largest cell in the human body is female ovum. Smallest cell in the human body is male gametes, that is, sperm.

Which is the largest cell in animal?

ostrich eggThe largest cell is an ostrich egg, it is about 15cm to 18 cm long and wide.

What is the largest organ in the body?

Skin is the human body’s largest organ. Body organs aren’t all internal like the brain or the heart. There’s one we wear on the outside. Skin is our largest organ—adults carry some 8 pounds (3.6 kilograms) and 22 square feet (2 square meters) of it.

What is Plasmolysis?

: shrinking of the cytoplasm away from the wall of a living cell due to outward osmotic flow of water.

What is the second largest cell in the human body?

Largest one is NERVE CELL.Second largest is OVUM/EGG.Longest cell is NERVE CELL.Smallest one is Granule Cell of the Cerebellum (remember in context of volume sperm is)World’s smallest cell is PPLO( Mycoplasma)World’s largest cell is Ostrich eggs.

Is ostrich egg a cell?

Technically, the yolk of an ostrich egg is one cell though it is rather specially adapted. All the nucleotide material is contained in a small volume at the edge of the yolk. The bulk is a supply of `raw material’ that the cells of the growing embryo use to assemble the cells of the ostrich chick.