Science 8: Biology Unit Review

Which of the following can be pathogens?

• Bacteria only

• Viruses only

• Bacteria and viruses

• Neither bacteria or viruses

Which pathogen is treated with antibiotics?

• virus

• bacteria

• parasite

• fungi

A microbe that can cause harm is known as a

• Pathogen

• Pathogon

• Virus

• Bacteria

A disease that is widespread throughout the globe (world)

• pandemic

• epidemic

• endemic

• outbreak

According to the cell theory...

• All cells have cell walls

• Cells can arise spontaneously

• The cell is the basic unit of structure in organisms

• All cells have a nucleus

Which apparatus is needed to observe most cells?

• a microphone

• a microscope

• a micrograph

• a micrometre

What is the role of the nucleus of the cell?​

• Contains DNA

• It is the eye of the cell

• Controls the movement of the cell

• It controls the movement of substances across the cell membrane

Which organelle is only found in plant cells and allows the plant to photosynthesise its own food using the energy of sunlight as a catalyst?​

• Vacuole

• Nucleus

• Cytoplasm

• Chloroplast

The organism containing only a single cell is called

• unicellular organism

• multicellular organism

• organelle

• all of the above

Within each cell there are a number of specialized structures called __________________ that carry out specific functions.

• Organelles

• Roots

• Fermenters

• Fibres