Biology Unit 1 Quiz

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1. Define Antigen.

  • Protein on the surface of a foreign cell, which causes an immune response
  • A cell that remains in the blood allowing a faster, more rapid resonse next time
  • White blood cell with a large nucleus responsible for the immune response
  • Disease causing microorganism
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2. Which of these statements about phosphlipids is true?

  • The head is hydrophilic & the tail is hydrophobic
  • Both the head and the tail are hydrophilic
  • The tail is hydrophilic & the head is hydrophobic
  • Both the head and tail are hydrophobic

3. Which of these is not a function of lipids?

  • Protection
  • To absorb water into the cell
  • Insulation
  • Form plasma membranes

4. Which 2 monosaccharides are made when sucrase breaks down sucrose?

  • Glucose & Fructose
  • Glucose & Lactose
  • Glucose & Glucose
  • Glucose & Galactose

5. Which of these statements about osmosis is false?

  • When water moves into a plant cell, it bursts
  • When water moves out of a cell, it shrinks
  • There is equal water potentials when the overall net movement is zero
  • The kidneys help regulate water levels



Sucrose is not a reducing sugar. Fructose is a reducing sugar. 

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