Quiz
Molecular Biology - All About That H20. (IB)
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Questions in this quiz (20)
1Water's unique properties come down to it's molecular structure. Label this water molecule and its' charges.
- AOxygen
- Bnegatively charged
- CHydrogen
- DSlight positive charge
- ECovalent Bond
- FIonic Bond
2Water has a unique charge causing it to possess strange properties. Among these are...?
- AIt can dissolve salt
- BIt's solid can float in it's liquid form
- CIt forms hydrogen bonds
- DIt has cohesive properties
- EIt has adhesive properties
3Water molecules are polar and the bonding between the atoms involve the sharing of electrons. These electrons are shared equally.
- ATrue
- BFalse
4Having a slight potential charge is called. Being [blank_start]polar[blank_end].
- Apolar
5The hydrogen bond in a water molecule is weak.
- ATrue
- BFalse
6[blank_start]Surface tension[blank_end] is caused by the [blank_start]cohesive[blank_end] nature of [blank_start]hydrogen[blank_end] bonding, resisting the penetrating of its' surface.
- ASurface tension
- Bcohesive
- Cadhesive
- Dhydrogen
- Eoxygen
- Fnitrogen
7Adhesion is defined by the property of "sticking" to [blank_start]other polar molecules[blank_end].
- Aother polar molecules
- Bitself
- Cnothing
8Glucose is soluble in water. Therefore it is [blank_start]hydrophilic[blank_end].
- Ahydrophilic
9All lipids are hydrophobic.
- ATrue
- BFalse
10Organic substances are defined by having the element [blank_start]carbon[blank_end] present.
- Acarbon
11Water is a good [blank_start]solvent[blank_end].
- Asolvent
- Bsolute
12Things can float on water because it is [blank_start]dense[blank_end].
- Adense
13The amount of energy needed to turn liquid water into water vapour (gas), is called: The [blank_start]Latent[blank_end] [blank_start]Heat[blank_end] of [blank_start]Vaporisation[blank_end].
- ALatent
- BHeat
- CVaporisation
14Water is [blank_start]slow[blank_end] to change temperature.
- Aslow
- Bfast
15When water freezes, molecules [blank_start]expand[blank_end] causing less [blank_start]hydrogen[blank_end] bonds to exist, causing the water to be less [blank_start]dense[blank_end] therefore ice floats on water.
- Aexpand
- Bhydrogen
- Cdense
16Water has...
- AA high latent heat of vaporisation
- BA low latent heat of vaporisation
- Clow viscosity
- Dhigh viscosity
- Esurface tension
17Not all metabolites are soluble.
- ATrue
- BFalse
18Materials with an affinity for water are described as [blank_start]hydrophilic[blank_end].
- Ahydrophilic
19Because water is [blank_start]slow[blank_end] to change it's temperature, aquatic environments [blank_start]can[blank_end] exist in cold climates because the ice [blank_start]floats[blank_end] to the [blank_start]tops[blank_end] of bodies of water. Water also aids in the transport of water in plants by the [blank_start]xylem[blank_end] vessels as well as the transportation of minerals through the blood, through narrow [blank_start]capillaries[blank_end] in the circulatory system.
- Aslow
- Bfast
- Ccan
- Dcannot
- Efloats
- Fsinks
- Gtops
- Hbottoms
- Ixylem
- Jphloem
- Kcapillaries
- Larteries
- Mveins
20Water breaks easily under tension.
- ATrue
- BFalse
Information
- Description
- IB preparation for a unit of molecular biology under the sub-heading of water.
- Author
- Imani :D
- Language
- English
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- 89
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