Grade 9 Cells from Cells worksheet
from Gradelings · Name: ______________________
How to explain it
- Before dividing, a cell copies its DNA so each new cell gets a full set.
- Mitosis stages in order: prophase, metaphase, anaphase, telophase.
- Cells divide for growth and healing. Uncontrolled division can cause cancer.
Example: In which stage do the chromosomes line up in the middle? Prophase: chromosomes condense. Next they line up in the middle: metaphase. Answer: metaphase
Question 1
Most of a cell's life is spent in…
- anaphase
- mitosis
- telophase
- interphase
interphase
Hint: Interphase is when the cell grows, does its job and copies its DNA.
Question 2
Why do cells divide?
- To stop working
- To make non-living matter
- To grow, replace old cells and repair damage
- To get smaller
To grow, replace old cells and repair damage
Hint: Cell division lets organisms grow and heal.
Question 3
Put the stages of cell division in order, earliest first.
- 🧬Interphase: DNA is copied
- ➖Metaphase: chromosomes line up
- ⚪Telophase: two new nuclei form
- 🔬Prophase: chromosomes condense
Interphase: DNA is copied → Prophase: chromosomes condense → Metaphase: chromosomes line up → Telophase: two new nuclei form
Hint: Interphase: the cell grows and copies its DNA. Prophase: chromosomes become visible. Metaphase: they line up. Anaphase: they are pulled apart. Telophase: two nuclei form. Then the cell splits.
Question 4
Before a cell divides, the DNA is…
- copied, so each new cell gets a full set
- split into random pieces
- removed from the cell
- destroyed
copied, so each new cell gets a full set
Hint: DNA replication ensures each daughter cell receives complete instructions.
Question 5
How are plant cells different in the last stage of cell division?
- They skip it.
- They make a new nucleus only.
- They build a new cell plate between the two cells.
- They explode.
They build a new cell plate between the two cells.
Hint: Plant cells have rigid walls, so a cell plate forms and becomes the new wall.
Question 6
Where is the cell's DNA stored in an animal cell?
- in the cell membrane
- in the nucleus
- in the cytoplasm only
- in the mitochondria only
in the nucleus
Hint: The nucleus holds the chromosomes, which are made of DNA.
Question 7
What is the cell cycle?
- The path of blood around the body
- The series of events a cell goes through as it grows and divides
- The life of a plant seed
- The cycle of day and night
The series of events a cell goes through as it grows and divides
Hint: It includes interphase (growing and copying DNA) and mitosis.
Question 8
During which stage do chromosomes line up in the middle of the cell?
- prophase
- anaphase
- metaphase
- telophase
metaphase
Hint: In metaphase, chromosomes line up along the cell's centre before being pulled apart.
Question 9
What are the stages of mitosis in order?
- metaphase, prophase, telophase, anaphase
- prophase, metaphase, anaphase, telophase
- telophase, anaphase, metaphase, prophase
- anaphase, prophase, telophase, metaphase
prophase, metaphase, anaphase, telophase
Hint: A common memory trick is PMAT: Prophase, Metaphase, Anaphase, Telophase.
Question 10
What is a gene?
- A type of cell
- A section of DNA that carries instructions for a trait or protein
- A protein only
- A kind of organ
A section of DNA that carries instructions for a trait or protein
Hint: Genes are the units of heredity: sections of DNA with instructions.
Answer key
- 1. interphase
- 2. To grow, replace old cells and repair damage
- 3. Interphase: DNA is copied → Prophase: chromosomes condense → Metaphase: chromosomes line up → Telophase: two new nuclei form
- 4. copied, so each new cell gets a full set
- 5. They build a new cell plate between the two cells.
- 6. in the nucleus
- 7. The series of events a cell goes through as it grows and divides
- 8. metaphase
- 9. prophase, metaphase, anaphase, telophase
- 10. A section of DNA that carries instructions for a trait or protein
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