Starter quiz
- What is the name of the substance that carries the genetic information in cells?
- ATP
- DNA ✓
- glucose
- oxygen
-
Which sub-cellular structure is not present in this bacterial cell?- ribosomes
- cell membrane
- nucleus ✓
- cytoplasm
-
- What is a unicellular organism?
- An organism made up of many cells.
- A cell with only one function.
- An organism made up of only one cell. ✓
- An organism with only one nucleus.
-
- What is the correct symbol for micrometres?
- mm
- m
- nm
- µm ✓
-
- What is the function of the cell wall in many cells?
- The cell wall allows substances to enter and exit the cell.
- The cell wall is where many chemical reactions take place.
- The cell wall provides structure and gives the cell its shape. ✓
- The cell wall controls the activities of the cell.
-
- Which cell is not eukaryotic?
plant cell
animal cell
yeast cell
bacterial cell ✓
Exit quiz
- Which of the following would you usually find in a prokaryotic cell?
- chloroplasts
- mitochondria
- ribosomes ✓
- nucleus
-
- Where is the DNA found in prokaryotic cells?
- nucleus
- cell wall
- cytoplasm ✓
- flagellum
-
- Bacterial cell walls are usually made up of which substance?
- cellulose
- peptidoglycan ✓
- amylase
- glycogen
-
- What is the process by which bacterial cells divide?
- mitosis
- meiosis
- binary fission ✓
- photosynthesis
-
- Match the term to its correct definition.
- plasmid⇔Short ring of DNA that can cause variation when transferred. ✓
- prokaryotic⇔A type of cell with no nucleus, usually between 1-5 µm in length. ✓
- eukaryotic⇔A type of cell with a nucleus, usually between 5-100 µm in length. ✓
- nucleus⇔A membrane bound sub-cellular structure that usually contains DNA. ✓
- Which statements below are true?
- During binary fission, the DNA splits in half.
- Two genetically identical cells are produced during binary fission. ✓
- Prokaryotic cells are usually more complex than eukaryotic cells.
- Prokaryotic cells usually contain a cell wall, cytoplasm and a cell membrane. ✓
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Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- Bacteria are prokaryotic organisms.
- Common features of prokaryotic cells include the cell membrane, cytoplasm and cell wall.
- Prokaryotic cells do not have a nucleus; they store their genetic material in the cell cytoplasm.
- The genetic material is stored in one looped chromosome.
- Extra genetic material can be stored in small loops called plasmids.
Common misconception
All bacterial cells looks like the bacterial cell model.
Bacteria can come in different shapes and sizes, this will be outlined within the slide deck.
Keywords
Prokaryotic - A type of cell with no membrane bound nucleus; DNA is free floating in the cytoplasm.
Plasmid - Small ring of DNA found in the cytoplasm of prokaryotic cells.
Binary fission - The form of cell division that bacteria use to replicate.
Eukaryotic - A type of cell that contains a membrane bound nucleus; the DNA is usually found inside.
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