The Cell Membrane & Microorganisms

Which of the following is the cell membrane not made up of?

• Proteins

• Phospholipids

• Carbohydrates

• Cholesterols

• DNA

What is one function of proteins in the cell membrane?

True or false: atoms/molecules/solutes naturally move to areas of lower concentration to areas of higher concentration

• True

• False

What two processes are occurring in this image?

True or false: these two processes require energy to occur

• True

• False

Which of the following is not a microorganism?

• Bacteria

• Fungi

• Cat

• Protists

Does this curve match the total growth of microbe cells as nutrient concentration increases, or the rate of growth of microbe cells as nutrient concentration increases?

• Total growth

• Rate of growth

Microbes that prefer basic environments (pH > 8) are called:

• Acidophiles

• Neutrophiles

• Alkaliphiles

• Psychrophiles

Which of the following is not a beneficial role of microorganisms?

• Phytoplankton producing oxygen

• Bacteria and fungi digesting food in the stomachs of animals

• Genetically modified bacteria used to produce insulin

• Refrigeration used to slow microbe metabolic activity