Topic 2

• What is resolution?

  Minimum distance two objects can be apart for them to appear as separate items.
• How do Transmission Electron Microscopes work?

  Electrons pass through a thin layer of specimen. Parts which absorb them appear darker.
• How do Scanning Electron Microscopes work?

  Beams of electrons from above to build a 3D image.
• What is the homogenate?

  The resultant fluid after homogenation.
• What is the nucleolus?

  A region within the nucleoplasm, which makes rRNA and assembles ribosomes. 
• What is the nucleoplasm?

  The fluid within nucleus.
• What three things are in the stroma?

  Enzymes, DNA, and ribosomes.
• What happens to plasmids during binary fission?

  They are replicated and passed on to daughter cells.
• What are the three steps of binary fission?

  DNA replicates and attaches to membrane, membrane grows and divides the cytoplasm, new cell wall forms.
• What are the three stages of virus replication?

  Inject DNA/RNA into a host cell, host produces proteins and genes, virus particles are assembled.
• How do drugs disrupt the cell cycle? (2)

  Prevent DNA from replicating, Interfere with spindle formation to prevent metaphase.