MICROANATOMY

BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS

HEMATOPOIESIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why are RBCs unable to synthesize proteins, grow or divide?
A
because they are fragile
B
because they are anucleate
C
because of they are too small
D
because they are too big
Explanation: 

Detailed explanation-1: -Red cells contain neither a nucleus nor RNA (ribonucleic acid, necessary for protein synthesis), so that cell division (mitosis) and production of new protein are impossible.

Detailed explanation-2: -Because of the lack of nuclei and organelles, mature red blood cells do not contain DNA and cannot synthesize any RNA, and consequently cannot divide and have limited repair capabilities.

Detailed explanation-3: -100-120 days. its anucleate condition affect this life span by unabling it to reproduce or repair demage which was caused to it during circulation.

Detailed explanation-4: -Vertebrate red blood cells are anucleate, meaning that their red blood cells lack a nucleus. The red blood cell of many organisms lacks a complete nucleus, while some organisms have a nucleus, but it’s discarded during the maturation of red blood cells.

There is 1 question to complete.