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WorksheetsCell Cycle
Total questions: 23
Worksheet time: 23mins
When is G1?
A
B
C
D
When is DNA replication taking place?
A
B
C
D
What happens in G2?
DNA replication
The supercoiling of DNA
The cell double checks the duplicated chromosomes
The organelles duplicate
What are the stages of interphase?
G1, G0, S and G2
G1, G2 and G0
S, G1, G2, M
M, G1, G0
Which best describes mitosis?
Nuclear division producing four daughter cells
Reduction nuclear division producing four daughter cells
Nuclear division producing two identical daughter cells
Nuclear division producing four identical daughter cells
What happens in prophase?
Supercoiling of chromosomes, nucleolus disappears, nuclear membrane disintegrates and centrioles release spindle microtubules
Spindle microtubules attach to the kinetochore on the centromere and the chromosomes line up on the metaphase plate
The spindle microtubules condense and the sister chromatids separate to opposite poles
The chromosomes uncoil, the nucleolus re-appears, the nuclear membrane forms and a cleavage furrow develops
What happens in metaphase?
The spindle microtubules condense and the sister chromatids separate to opposite poles
The chromosomes uncoil, the nucleolus re-appears, the nuclear membrane forms and a cleavage furrow develops
Supercoiling of chromosomes, nucleolus disappears, nuclear membrane disintegrates and centrioles release spindle microtubules
Spindle microtubules attach to the kinetochore on the centromere and the chromosomes line up on the metaphase plate
What happens in anaphase?
The spindle microtubules condense and the sister chromatids separate to opposite poles
Spindle microtubules attach to the kinetochore on the centromere and the chromosomes line up on the metaphase plate
The chromosomes uncoil, the nucleolus re-appears, the nuclear membrane forms and a cleavage furrow develops
Supercoiling of chromosomes, nucleolus disappears, nuclear membrane disintegrates and centrioles release spindle microtubules
What happens in telophase?
Spindle microtubules attach to the kinetochore on the centromere and the chromosomes line up on the metaphase plate
The chromosomes uncoil, the nucleolus re-appears, the nuclear membrane forms and a cleavage furrow develops
Supercoiling of chromosomes, nucleolus disappears, nuclear membrane disintegrates and centrioles release spindle microtubules
The spindle microtubules condense and the sister chromatids separate to opposite poles
During which stage does the cell surface area to volume ratio decrease?
Cytokinesis
Telophase
Interphase
Metaphase
Which cell shows anaphase?
A
B
C
D
Which phase of mitosis is X?
Anaphase
Metaphase
Prophase
Telophase
What is happening at D?
Prophase
Metaphase
Anaphase
Telophase
What is happening at C?
Metaphase
Prophase
Anaphase
Telophase
Which tissue sample has the highest mitotic index?
A
B
C
D
What molecules form the cleavage furrow in animals?
Actin and myosin
Phosphate and cellulose
Pectin and cellulose
Actin and pectin
Which two substances form the middle lamella and cell wall during cytokinesis of a plant cell?
Actin and myosin
Pectin and cellulose
Actin and cellulose
Pectin and myosin
Cyclins are proteins and control the cell cycle, place the four cyclins in the correct order:
D, E, A, R
D, E, A, B
D, E, E, R
B, E, A, D
Which letter represents the cyclin that promotes the formation of spindle microtubules?
A
B
C
D
Which letter represents the cyclin that triggers the cell moving from G0 to G1?
A
B
C
D
Which letter represents the cyclin that prepares the cell for DNA replication?
A
B
C
D
Which letter represents the cyclin that activates DNA replication?
A
B
C
D
Which processes are involved in the development of cancer?
I. Mutations occur in oncogenes.
II. Oncogenes prevent cancer.
III. Oncogenes affect cell cycle regulatory proteins.
I and II only
I and III only
II and III only
I, II and III
