Starter quiz
- In an animal cell which sub-cellular structure holds the genetic material?
- cytoplasm
- nucleus ✓
- ribosome
- mitochondria
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- DNA is wound up tightly to form which structures?
- ribosomes
- chloroplasts
- chromosomes ✓
- cell membrane
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- Match the keyword to its definition
- cell cycle⇔a series of phases a cell undergoes in order to divide ✓
- cytoplasm⇔a jelly-like liquid where many chemical reactions occur ✓
- cell membrane⇔surrounds the cell and controls what can enter and exit it ✓
- Cell division that produces genetically identical cells is called?
- fertilisation
- reproduction
- mitosis ✓
- meiosis
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- Arrange these in ascending size order from smallest to largest.
- 1⇔DNA
- 2⇔chromosome
- 3⇔nucleus
- 4⇔cell
- 5⇔tissue
- Why does mitosis take place in multicellular organisms?
- reproduction
- growth ✓
- repair ✓
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Exit quiz
- In animals what type of cell division produces genetically identical cells?
- 'mitosis' ✓
- Which of the following does not involve mitosis?
- growth in multicellular organisms
- sexual reproduction in multicellular organisms ✓
- repair of tissues in multicellular organisms
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- Put these stages in order to show what happens during the cell cycle.
- 1⇔cell growth
- 2⇔mitosis: nucelar division
- 3⇔division of cell membrane and cytoplasm
- What happens during cell growth?
- nucleus divides
- chromosomes lines up along the middle of the cell
- DNA and sub-cellular structures are copied ✓
- two genetically identical cells are formed
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- Which statements describe what happens during the second stage of the cell cycle.
- Chromosomes line up along the middle of the cell. ✓
- The cytoplasm and cell membrane divide.
- The nucleus begins to divide. ✓
- DNA and sub-cellular structures are copied.
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- Which statements about the cell cycle are true?
- Two genetically identical daughter cells are produced. ✓
- After cell growth the cell has twice the amount of DNA. ✓
- Daughter cells have different chromosomes to the parent cell.
- Chromosomes are pulled to each end of the cell and then line up in the middle.
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Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- Most cells in multicellular organisms go through different phases that are part of a cell cycle.
- The main phases of the cell cycle are interphase and mitosis.
- During cell interphase, each chromosome is copied, sub-cellular structures are copied.
- During mitosis, chromosome copies line up along the middle of the cell and the nucleus divides.
- After division, the two new cells both have a copy of the same chromosomes.
Common misconception
Chromosomes are halved when the cell splits.
Slides repeatedly address the concept that chromosomes are copied.
Keywords
Cell cycle - The process by which cells divide; this involves a specific set of phases.
Mitosis - A type of cell division that produces genetically identical cells.
Nucleus - A sub-cellular structure that contains the genetic material (DNA); controls the cell activities.
Chromosomes - Tightly coiled strands of DNA that carry the genetic material.
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