LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

CELL BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which organelle or structure is absent in plant cells?
A
mitochondria
B
Golgi Vesicles
C
microtubules
D
Centrosomes
Explanation: 

Detailed explanation-1: -Hence, centrioles are absent in plant cells.

Detailed explanation-2: -Centrosomes play a vital role in the spindle formation in animals. Hence centrosomes are absent in plant cells but present in animal cells. You can read about the Plant Tissues – Classification, Definition, Types in the given link.

Detailed explanation-3: -The centrosome is an organelle containing two cylindrical structures called centrioles. It is not present in cells of higher plants. Plant cells have simpler microtubule organizing centers for cell division.

Detailed explanation-4: -A unique property of flowering plant cells is that they entirely lack centrosomes, which in animals have a major role in spindle formation. The absence of these important structures suggests that plants have evolved novel mechanisms to assure chromosome segregation.

There is 1 question to complete.