Test
Molecular Biology - All About That H20. (IB)
Este test tiene tipos de pregunta que se abren en el reproductor de siempre.
Preguntas del test (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.
- AVerdadero
- BFalso
4Having a slight potential charge is called. Being [blank_start]polar[blank_end].
- Apolar
5The hydrogen bond in a water molecule is weak.
- AVerdadero
- BFalso
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.
- AVerdadero
- BFalso
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.
- AVerdadero
- BFalso
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.
- AVerdadero
- BFalso
Información
- Descripción
- IB preparation for a unit of molecular biology under the sub-heading of water.
- Autor
- Imani :D
- Idioma
- English
- Visitas
- 87
- Etiquetas
- Valoración
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