25.05.2025 21:58 IB Biology: A1.
1 Water | Blooket
Blooket | Question Set Name
Date
IB Biology: A1.1 Water Class
1. What intermolecular bond is responsible for water's cohesive, adhesive and
thermal properties?
a) Covalent bond b) Hydrogen bond
c) Ionic bond d) Metallic bond
2. Which fluid acts as a coolant in the human body?
a) Tears b) Sweat
c) Urine d) Saliva
3. What property of water helps living organisms maintain their internal body
temperature?
a) Thermal properties b) Adhesive properties
c) Solvent properties d) Cohesive properties
4. Which of the following is not soluble in water?
a) Glucose b) Amino Acids
c) Cholesterol d) Sodium Chloride
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25.05.2025 21:58 IB Biology: A1.1 Water | Blooket
5. What substances are attracted to water and form intermolecular bonds with
water molecules?
a) Insoluble substances b) Hydrophobic substances
c) Non-polar substances d) Hydrophilic substances
6. Which is the correctly annotated diagram of a molecule of water?
a) A b) B
c) C d) D
7. What property of water explains capillary action?
a) Melting point b) Specific heat capacity
c) High boiling point d) Adhesive properties
8. Which of the following statements about the dipolarity of the water molecule
are true? I. Oxygen attracts the shared electrons stronger than hydrogen. II.
Hydrogen atoms are partially negative. III. The shared electrons spend more
time closer to oxygen.
a) I, II, and III b) I and II
c) I and III d) II and III
9. The black-throated loon (Gavia arctica) is a bird that lives near large bodies of
water in cold climates. Which of the following is a correct description of how
the properties of water may make winter temperatures more moderate for the
black-throated loon?
Water has a relatively high specific
Ice floats on water so insulates the
a) heat capacity which buffers the b)
liquid water beneath the ice.
environmental temperature.
Water has a low specific heat capacity Water is dense which enables the
c) d)
which warms the surrounding air. black-throated loon to float.
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10. Which component of blood is mainly composed of water and transports water-
soluble substances to different parts of the body?
a) Blood plasma b) Red blood cells
c) Platelets d) White blood cells
11. Intramolecular?
a) Covalent bond b) Hydrogen bond
c) Ionic bond d) Ester bond
12. Intremolecular?
a) Hydrogen bond b) Covalent bond
c) Ionic bond d) metallic bond
13. What is it called when water molecules stick to eachother?
a) Cohesion b) Adhesion
c) Hydrogen bonding d) Covalent bonding
14. What is it called when water molecules stick to things other than itself?
a) Adhesion b) Cohesion
c) Covalent bonding d) Ionic bonding
15. What is the habitable zone around the sun called?
a) Goldielocks zone b) Habitable area
c) liveble atomosphere
16. What end of a water molecule is slightly positive?
a) Hydrogen end b) Oxygen end
17. A hydrogen bond is a-----bond formed between the positive and negative-----
of adjacent water molecules.
a) Strong, poles b) Weak, poles
c) Weak, atoms d) Strong, atoms
18. The low----- of water allows it to flow easily in the ciculatory system.
a) Viscosity b) Temperature
c) Heat capacity d) Buoyancy
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25.05.2025 21:58 IB Biology: A1.1 Water | Blooket
19. Which statement best explains why water has 'dipolarity'?
A water molecule contains negative
a) A water molecule is polar b)
charges due to the oxygen atom
A water molecule has 2 types of A water molecule contains both
c) d)
positive charges positive and negative charges
20. Which substance is hydrophobic?
a) Lipids b) Starch
c) Phospholipids d) Oxygen
21. Why is cohesion of water molecules high in ponds and in xylem of plants?
Hydrogen atoms allow ionic bonds to Ions within water molecules attract
a) b)
form each other, creating a strong bond
Covalent bonds allow water
H-bonds make water molecules stick
c) d) molecules to stick to each other more
to each other more strongly
strongly
22. Why does water have such a high specific heat capacity, compared to other
molecules of a similar size, like methane?
Some heat is used to break covalent Some heat is also used to break H-
a) bonds, so less is needed to raise the b) bonds, so more is needed to raise the
temperature temperature of water
Some heat is also used to make H- Some heat is used to break covalent
c) bonds, so more is needed to raise the d) bonds, so more is needed to raise the
temperature of water temperature
23. In a water molecule, what is meant by the 'positive pole'?
The area containing more electrons The area containing fewer electrons
a) b)
near its hydrogen atom nuclei near its hydrogen atom nuclei
The area containing no electrons near The area containing fewer electrons
c) d)
its oxygen atom nuclei near its oxygen atom nuclei
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24. Which of the following statements best describes polarity?
Having positively & negatively Having positively & negatively
a) charged shells because of an uneven b) charged ions because of an even
distribution of electrons distribution of electrons
Having positively & negatively charged Having positively & negatively
c) areas because of an even distribution d) charged areas because of an uneven
of electrons distribution of electrons
25. The diagram below shows dotted lines between a group of water molecules.
What do these dotted lines represent?
a) Electrical charges b) Covalent bonds
c) Ionic bonds d) Hydrogen bonds
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