Which cells are enucleated?

The correct answer is option 1, i.e. Fat cell. A cell which contains no nucleus is called an enucleated cell, thus the main genetic material, like DNA, is absent in the cell. Ex: RBCs, Fat cells.

What blood cells are enucleated?

All mammals possess enucleated red blood cells whereas erythrocytes of birds, reptiles, amphibians and fish all possess their nuclei. We are very interested in exploring the processes by which mammalian erythroid cells condense and expel their nuclei and asking why other vertebrates do not.

What is enucleated cell give examples?

An enucleated plant cell is sieve tube cells. The sieve tube is an elongated living cell of the phloem which helps in conducting or transporting food in plants (from leaves to fruits and roots). The nucleus of the sieve tube cell gets fragmented and disappears at maturity. So, the correct answer is ‘Sieve tube cell’.

Which mammalian cells are enucleated?

Complete answer: Rat is a mammal and as we know that enucleated erythrocyte is present in all mammals. -Erythrocytes synthesized in the bone marrow after it undergoes a process called enucleation, which means the nucleus is removed, and the absence of the nucleus allows the red blood cells to contain more hemoglobin.

Are red blood cells enucleated?

Enucleated erythrocytes are present in the blood of all mammals, suggesting that enucleation provides an evolutionary advantage.

Why red blood cells are enucleated?

Enucleation is hypothesized to have been selected for during mammalian evolution to enhance blood cell circulation and prevent possible blockage of small capillaries by deformed red cells. The lack of a nucleus is also thought to provide more intracellular space for hemoglobin.

Which blood cell is known as scavenger?

Macrophages are cells in the immune system that belong to the phagocyte family, or so-called scavenger cells.

Which human cell is enucleated Class 9?

Adult human RBCs are enucleated. Complete Answer: The cell without a nucleus is called an enucleated cell.

Are companion cells enucleated?

small, thin walled living, enucleated.

Are platelets enucleated?

In spite of the fact that platelets and erythrocytes are the only enucleated cells in mammals they contain most of the apoptosis machinery of other cells and undergo similar apoptotic processes as nucleated cells except those connected with nuclear and chromatin transformation.

Are monocytes scavenger cells?

Monocytes, which constitute between 4 and 8 percent of the total number of white blood cells in the blood, move from the blood to sites of infection, where they differentiate further into macrophages. These cells are scavengers that phagocytose whole or killed microorganisms and are…

Why are WBC called scavengers in humans?

the scavenger calls are also know as white blood cells help to fight against germs and other foreign bodies which cause diseases.