Bacteria Brainstorm ^🔗

Structure of a Bacterium ^🔗

• Glue the diagram into the centre of a page
• We will make notes around the outside

Movement ^🔗

• Most movement is achieved using the flagellum for swimming
• Some movement can be achieved using pili (twitching)

Respiration ^🔗

• Bacteria do aerobic respiration which requires oxygen
• Occurs in the plasma membrane of the bacteria
• $C_{6}H_{12}O_{6} + O_{2} \rightarrow CO_{2} + H_{2}O + energy$
• There have been some bacteria that do anaerobic respiration (without oxygen) but this is less common

Sensitivity ^🔗

• As we will show tomorrow, bacteria are sensitive to their environment
• They can be killed by altering environmental factors such as: oxygen availability, temperature, water availability, food availability, and chemicals that break down their cellular structure

Growth ^🔗

• Growth is a way to produce the materials required for reproduction
• For example, bacteria make proteins in small organelles called ribosomes which can be found near the nucleus
• Proteins are used for everything from respiration to building the plasma membrane and everything in between

Reproduction ^🔗

• Like fungi, bacteria reproduce through binary fission
• In this process the bacteria makes a clone of itself
• Some bacteria undergo a process of conjugation where they swap some genetic material with another through direct physical contact
• Some other bacteria simply scoop up miscellaneous DNA floating around the environment

Excretion ^🔗

• The processes of excretion is called exocytosis
• Byproducts of cellular life processes are captured in vesicles
• These vesicles fuse with the plasma membrane before releasing their contents to the outside of the cell
• Sketch a quick diagram of this process

Nutrition ^🔗

• Nutrients are brought into the cell via a process called endocytosis
• The nutrients are captured into vesicles and transported around the cell to the required area
• Sketch a quick diagram of this process

Ngohe / Task ^🔗

• Use your device to research the purpose of the cellular structures that we did not discuss
  • Cytoplasm
  • Cell wall
  • Cell capsule
  • Nucleoid
  • Plasmids