1. Starter: B1 recap Bacteria & Yeast 4/28/2017 Name 3 bacteria
Why are not all bacteria pathogens?
Explain how bacteria can be killed by antibiotics
Give one way a bacterium is different to a human cell.
CAF: uses of bacteria
B1 recap

2. Recap: Bacteria Bacteria have no nucleus
Uses
Making yoghurt
Making cheese
Good bacteria in our gut help with digestion
Making medicines e.g. penicillin
Bacteria have no nucleus
DNA is circular and free in the cytoplasm
Rings of DNA called plasmids carry extra genetic info
Flagella (tails) allow the bacteria to move
The slime capsule protects the bacteria
Cell membrane
Slime capsule
Cell wall
Cytoplasm
Genetic material
Plasmids
Flagella

3. Yeast Is YEAST an animal or a plant cell? JUSTIFY your answer.
Food storage granule
Cytoplasm
Cell membrane
Cell wall
Vacuole
Nucleus

4. Yeast Yeast are bigger than bacteria (3-4μm) but still very small
Yeast reproduce by asexual budding
Aerobic respiration makes bread rise
Anaerobic respiration (lack of oxygen) produces ethanol by a process
called fermentation

5. Quick Review: Animal, Plant, Yeast, Bacteria?
List all cell types with a nucleus
List all cell types with a cell wall
List the bits found in all 4 cell types
List the cell types that reproduce asexually

6. How quickly can you complete?
Question Dash
How quickly can you complete?

7. Experiment Apparatus set up: Method
Stretch out the balloon by blowing it up a few times, then lay aside.
Add yeast
Yeast + Sugar
Carbon
Dioxide
Lime
Water

8. Experiment Results table:
Hypothesis – which will blow the balloon up most?
Justify your response.
Tube
Contents
Results A
Yeast + Juice B
Yeast + Juice + Sugar C
Juice + Sugar D
Yeast + Sugar

9. Screaming jelly baby How is this similar to the yeast investigation?
How does this show respiration?
How is this practical different to what happens in your body?

10. Grade A-A* – extended piece of writing
Plenary
Grade A-A* – extended piece of writing
Using knowledge you have gained today and from your previous lesson you must write a short paragraph describing & explaining the key differences and similarities between: Plant Animal Bacterial & Yeast Cells (6 marks)
Exam Tip – to improve your marks in this question you should aim to include the names of as many organelles as you can and try to define their function within a cell.

11. List the 3 parts of a plant cell not found in an animal cell
Draw and fully label a bacterium
List the 3 types of microorganism
Draw and fully label a yeast cell
Name 2 ways bacteria can be useful to people.
Describe how the genetic material is different in a bacteria cell to yeast, animal and plant cells.
Explain how some bacteria become resistant to antibiotics