CAIE A-Level Biology AS 5.2.2 Cell Structures in Mitosis Questions
Identify the structures that organise chromosome movement during mitosis, using each question and its mark scheme as evidence.
- Syllabus
- 2028–2030
- Course
- Biology 9700
- Level
- AS
Exam points
- Identify the cell structures involved in mitosis and explain their roles in chromosome movement.
CAIE A-Level Biology AS 5.2.2 Cell Structures in Mitosis Questions question 1
[Maximum number: 2]
The root apical meristem is a region of undifferentiated cells in the root tips of plants. Mitosis occurs in this region.
Describe the behaviour of the nuclear envelope during mitosis.
two from disassembles / breaks down / disintegrates / AW, at, prophase ;
A prometaphase
re-forms / re-assembles / AW, after anaphase / at telophase ;
if m p 1 and 2 not gained, one mark can be awarded for knowledge of disassembles and then reassembles
detail ;
e.g.
breakdown into vesicles
re-forms from vesicles / vesicles fuse to form new membranes
re-forms around both sets of (daughter) chromosomes
Question 2
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