IB Biology A1.1 (SL) Water MCQ

21M.1.SL.TZ1.12

What is the term for the attraction of water molecules to other water molecules?

• A. Surface tension

• B. Capillary action

  
  

• C. Cohesion

  
  

• D. Adhesion

  
  

21M.1.SL.TZ2.7

What property of water accounts for its usefulness as a coolant in sweat?

• A. High specific heat capacity

  
  

• B. High latent heat of vaporization

  
  

• C. High boiling point

  
  

• D. High melting point

  
  

19M.1.SL.TZ1.7

Which substance must be transported in the blood by lipoprotein complexes?

• A. Cholesterol

  
  

• B. Oxygen

  
  

• C. Sodium chloride

  
  

• D. Amino acids

  
  

19M.1.SL.TZ2.6

Where do hydrogen bonds form?

• A. Between the slight negative charge of hydrogen and slight positive charge of oxygen within a water molecule

  
  

• B. Between the slight positive charge of hydrogen and slight negative charge of oxygen within a water molecule

  
  

• C. Between the slight positive charge of hydrogen and slight negative charge of oxygen in different water molecules

  
  

• D. Between the slight negative charge of hydrogen and slight positive charge of oxygen in different water molecules

  
  

18M.1.SL.TZ1.7

Researchers have developed a skin patch which can detect and measure very small concentrations of ions, sugars, amino acids, proteins and hormones which remain when sweat evaporates. What allows the presence of these substances in sweat?

• A. Cohesion

  
  

• B. Hydrophobic interactions

  
  

• C. Solvent properties

• D. Thermal properties

SPM.1A.HL.TZ0.1

What allows the movement of water under tension in the xylem?

• A.  Adhesion of water molecules to dissolved mineral salts

  
  

• B.  Cohesion of water molecules due to hydrogen bonding

  
  

• C.  Adhesion between water molecules due to uneven sharing of charges

  
  

• D.  Cohesion between water molecules and other polar substances

  
  

SPM.1A.SL.TZ0.1

• A

• B

• C

• D

22M.1A.SL.TZ1.6

What are linked by hydrogen bonds?

• A. Hydrogen and oxygen within a water molecule

  
  

• B. Phosphate and sugar within a DNA molecule

  
  

• C. Base and sugar between DNA nucleotides

  
  

• D. Hydrogen and oxygen in different water molecules