Question 24
IGCSE_MODEL_QUESTIONS_VOL1
•
2017
•
BIOLOGY
•
objective
Why does a cleavage furrow form during cytokinesis in animal cells, whereas plant cells form a cell plate instead?
Answer Options
Correct Answer
A.
Because animal cells have no rigid cell wall, the actin‑myosin contractile ring can pull the membrane inward to make a cleavage furrow; plant cells have a rigid cell wall, so they build a new wall (cell plate) from vesicles instead.
B.
Because plant cells have a rigid cell wall, they also use an actin‑myosin contractile ring like animal cells, but the wall simply stretches instead of forming a cell plate.
C.
Because both animal and plant cells lack a cell wall, they both use a contractile actin‑myosin ring to divide, producing a cleavage furrow in each.
D.
Because animal cells have a rigid cell wall, they cannot form a cleavage furrow; plant cells lack a cell wall, so they form a cleavage furrow instead.
Correct Answer
A
Correct Option:
Because animal cells have no rigid cell wall, the actin‑myosin contractile ring can pull the membrane inward to make a cleavage furrow; plant cells have a rigid cell wall, so they build a new wall (cell plate) from vesicles instead.
About This Question
This is
Igcse Model Questions Vol1
2017
Biology
Question 24.
It is one of the
objective
questions from the
2017
Igcse Model Questions Vol1
Biology
examination.
Difficulty level:
Easy
.