Courses
Courses for Kids
Free study material
Offline Centres
More
Store Icon
Store

What is the colour and shape of white blood cells?

seo-qna
SearchIcon
Answer
VerifiedVerified
368.4k+ views
Hint: White blood cells, or WBCs, are also known as leukocytes or leucocytes. They are immune system cells that are primarily responsible for:
Invading pathogens must be protected and combated.
Encourages the production of the hormone progesterone.
By creating a network of blood arteries within the ovary, they play an important role in the human reproductive system.

Complete answer:
White blood cells (WBC’S)
WBCs are also known as leukocytes.
They act as a barrier to all infections in the human body.
WBC produces antibodies, a type of protein that recognises and fights foreign agents such as fungus, viruses, and bacteria that attack the human body.
The WBC in the cells has granule-like features that can be recognised. Granulocytes do not contain agranulocytes, as their name implies.
WBCs make up one percent of total blood volume and are colourless because they lack haemoglobin.
Shape and colour- The shape of WBCs is uneven. The cells are white in colour, as the name implies.
Lifespan- WBC has a lifetime of \[12 - 20\] days. They're then eliminated by the lymphatic system. Bands or stabs are immature WBCs that are discharged from the bone marrow into the peripheral circulation. WBC has a different lifespan as it becomes older.

Note:
When a cell tries to eliminate foreign particles or pathogens such as bacteria or an infected cell by engulfing them in lytic enzymes, this is known as phagocytosis. During the digestion of food particles, single-celled organisms such as amoeba exhibit this mechanism.
Phagocyte cells in humans defend the body by consuming hazardous organisms such as viruses, bacteria, and other infected/dead cells. Phagocytosis, which is carried out by specific cells such as neutrophils and macrophages, is an important part of the immune system. The immune system keeps infection or pathogens from spreading in the body by killing germs.