EVERYDAY SCIENCE

SCIENCE

ZOOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which cells in sponges are responsible for nutrient transport and transporting a sperm to an egg?
A
porocytes
B
pinacocytes
C
choanocytes
D
amoebocytes
Explanation: 

Detailed explanation-1: -Amoebocytes carry out several special functions: they deliver nutrients from choanocytes to other cells, give rise to eggs for sexual reproduction, deliver phagocytized sperm from choanocytes to eggs, and can transform into other cell types.

Detailed explanation-2: -Amoebocytes in sponges are motile, amoeba-like cells that transport nutrients between cells, transform into other cell types, and enable sexual reproduction. In other words, amoebocytes function to help sponges eat, grow, and reproduce.

Detailed explanation-3: -Archaeocytes. Archaeocytes are very important to the functioning of a sponge. These cells are totipotent, which means that they can change into all of the other types of sponge cells. Archaeocytes ingest and digest food caught by the choanocyte collars and transport nutrients to the other cells of the sponge.

Detailed explanation-4: -In sponges, amebocytes, also known as archaeocytes, are cells found in the mesohyl that can transform into any of the animal’s more specialized cell types.

Detailed explanation-5: -Choanocytes are specialized cells with a single flagellum surrounded by a microvilli net. Amoebocytes are sponge cells that can carry nutrients to other sponge cells. Choanocytes and amoebocytes are present in sponges.

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