Cells, microbes and microscopy

Which type of cell is smaller in size and simpler?

• Prokaryotic cell

• Eukaryotic cell

Prokaryotes contain....

• Nucleus and cell wall

• Plasmid and Flagellum

• Chloroplasts and Plasmids

• Mitochondria and Nucleus

I contain membrane bound organelles and divide by the process of mitosis. What am I?

• Eukaryote

• Prokaryote

• Bacteria

What is the correct function of mitochondria?

• Where most of the chemical reactions occur.

• Houses DNA and controls what happens in the cell.

• Contains chlorophyll which absorbs light energy for photosynthesis.

• Aerobic respiration takes place, releasing energy for the cell.

Which statement about specialised cells is true?

• All cells contain different DNA and this is how they are special.

• All cells contain the same DNA, however they may have different components and structure for a specific role.

• Specialised cells only occur in animals/humans.

• Specialised cells contain no DNA.

Once animal cells have specialised, they can no longer differentiate.

• True

• False

Who invented the first electron microscope?

• Hans and Zacharias Janssen

• Robert Hooke

• Anton van Leeuwenhoek

• Ernst Ruska

Which type of microscope has a lower magnification of approx. x1500 and resolution of 0.2μ/ 200nm.

• Light microscope

• Electron microscope

When preparing onion cells, what is used to stain them?

• Water

• Beetroot juice

• Iodine

• They do not need staining

Which part of a light microscope adjusts the focus of the image?

• Coarse adjustment knob

• Fine adjustment knob

• Stage

• Arm