10.18.16 Test Guide

1. 1The basic unit of matter is called an [blank_start]atom[blank_end]

   1. Aatom
2. 2What subatomic particles make up atoms?

   1. AIsotopes
   2. BProtons
   3. CParticles
   4. DNeutrons
   5. EMolecules
   6. FElectrons
3. 3PROTONS determine an element's...

   1. AAtomic mass
   2. BAtomic number
   3. CNumber on the periodic table
   4. DAtomic weight
   5. ENucleus's Charge
4. 4Isotopes are...

   1. AAtoms of a DIFFERENT element that have the SAME number of neutrons they contain
   2. BATOMS of a DIFFERENT element that have DIFFERENT number of neutrons
   3. CAtoms of the SAME element that DIFFER in the number of neutrons the contain
   4. DAtoms of the SAME element that have the SAME number of neutrons
5. 5Where in an atom do PROTONS and NEUTRONS lie?

   1. AOrbit
   2. BNucleus
   3. COutside of the atom's orbit
   4. DClose to the circumference of the nuclues
6. 6All atoms of the same element have the same number of...

   1. AElectrons
   2. BNeutrons
   3. CProtons
   4. DMolecules
7. 7What subatomic particle determines what the element is?

   1. AProtons
   2. BNeutrons
   3. CElectrons
   4. DIsotopes
8. 8ELECTRONS orbit around the nucleus of an atom.

   1. AVerdadero
   2. BFalso
9. 9What is the weakest type of chemical bond?

   1. ACovalent
   2. BHydrogen
   3. CIonic
10. 10What element forms chemical bonds?

    1. AOxygen
    2. BCarbon
    3. CHydrogen
    4. DHelium

11. 11COVALENT BONDS are formed when...

    1. AElectrons in an atom are transferred to another atom
    2. BElectrons in an atom are shared
    3. CElectrons in an atom bond with the atom's neutrons
    4. DElectrons travel between the nuclei of both atoms
12. 12IONIC BONDS are formed when...

    1. AElectrons are “stolen” from one atom and taken to the next
    2. BElectrons are shared between atoms
    3. CSome of the atom's electrons are transferred to another atom
    4. DAnother atom destroys its own protons to weaken its bond
13. 13The number of NEUTRONS and ELECTRONS in an atom are usually always the same.

    1. AVerdadero
    2. BFalso
14. 14How many types of substances make a CHEMICAL ELEMENT?

    1. A1
    2. B2
    3. C3
    4. D4
15. 15Why are atoms NEUTRAL despite having charged particles?

    1. ASame amount of PROTONS and ELECTRONS balance out the charge in an atom
    2. BSame amount of PROTONS and NEUTRONS balance out the charge in an atom
    3. CDifferent amounts of PROTONS and ELECTRONS maintain stability in an atom
    4. DDifferent amounts of ELECTRONS and NEUTRONS balance out the charges in an atom
16. 16How are isotopes identified?

    1. AAtomic number
    2. BAtomic mass
    3. CAtomic balance
    4. DAtomic neutrality
17. 17Atomic [blank_start]mass[blank_end] is the [blank_start]weighted[blank_end] average of the masses of an element's [blank_start]isotopes[blank_end]

    1. Amass
    2. Bnumber
    3. Cweight
    4. Dmeasured
    5. Eweighted
    6. Fdivided
    7. Gelectrons
    8. Hneutrons
    9. Iprotons
    10. Jisotopes
18. 18WEIGHTED in Biology/Chemistry/Physics means the [blank_start]abundance[blank_end] of each [blank_start]isotope[blank_end] in [blank_start]nature[blank_end] is considered when the average is calculated

    1. Aabundance
    2. Black
    3. Cisotope
    4. DElectron
    5. EProton
    6. FNeutron
    7. Gnature
    8. Hsimilarities
    9. Idifferences
19. 19Why do all isotopes of an element have the same chemical properties?

    1. ABecause they have DIFFERENT numbers of PROTONS
    2. BBecause they have ALMOST EQUAL amounts of MOLECULES
    3. CBecause they have DIFFERENT numbers of NEUTRONS
    4. DBecause they SHARE the same number of ELECTRONS
20. 20A chemical compound is formed when [blank_start]2+[blank_end] elements are combined chemically

    1. A0-1
    2. B1-2
    3. C2+
    4. D2-3
21. 21The formula for table salt is [blank_start]NaCl[blank_end]

    1. ASmCl
    2. BSoCl
    3. CNaCl
    4. DSiCl
22. 22Sodium is a [blank_start]metal[blank_end] and chloride is a [blank_start]gas[blank_end].

    1. Agas
    2. Bmetal
    3. Cgas
    4. Dmetal
23. 23An ion is an atom that is...

    1. ANegatively charged
    2. BPositively charged
    3. CNeutrally charged
24. 24An atom that loses electrons has a negative charge.
    

    1. AVerdadero
    2. BFalso
25. 25A [blank_start]triple[blank_end] [blank_start]covalent[blank_end] bond is formed when [blank_start]six[blank_end] electrons are shared.

    1. Acovalent
    2. Bionic
    3. Csingle
    4. Dtriple
    5. Edouble
    6. Ftwo
    7. Gsix
    8. Hfour
26. 26In a [blank_start]water[blank_end] molecule, each [blank_start]hydrogen[blank_end] atom forms a [blank_start]single[blank_end] covalent bond.
    

    1. Ahydrogen
    2. Bwater
    3. Chydrogen
    4. Dcarbon
    5. Esingle
    6. Fdouble
27. 27The slight attractions that develop between oppositely charged region of nearby particles are called
    [blank_start]Van der Waals forces[blank_end]
    

    1. AVan der Waals forces
28. 28Acidic solutions are [blank_start]compounds[blank_end] that form [blank_start]H+ ions[blank_end] in solution.

    1. Acompounds
    2. BH+ ions
29. 29Water molecules are polar because of [blank_start]uneven[blank_end] distribution [blank_start]between[blank_end] their two poles (the [blank_start]negative[blank_end] attracts [blank_start]oxygen[blank_end] and the positive attracts [blank_start]hydrogen[blank_end] atoms).

    1. Auneven
    2. Bequal
    3. Cpositive
    4. Dnegative
    5. Eoxygen
    6. Fhydrogen
    7. Goxygen
    8. Hhydrogen
    9. Ibetween
    10. Joutside of
    11. Karound
30. 30Substances that combine physically form [blank_start]mixtures[blank_end], while substances that combine chemically form [blank_start]compounds[blank_end].

    1. Amixtures
    2. Bcompounds
31. 31Acidic solutions have lesser concentrations of H+ ions than pure water.

    1. AVerdadero
    2. BFalso
32. 32Basic solutions produce...

    1. AOH- (hydroxide) ions
    2. BSmall amounts of H+ ions
    3. CO- ions
    4. DHO- ions
33. 33[blank_start]Acidic[blank_end] solutions have pH levels below [blank_start]7[blank_end], and even from [blank_start]1[blank_end] to [blank_start]3[blank_end].

    1. AAcidic
    2. B7
    3. C1
    4. D3
34. 34The polar, neutral WATER molecule has an equal amount of protons and electrons, [blank_start]10[blank_end] each.

    1. A10
35. 35The attraction between the hydrogen atom on [blank_start]water[blank_end] molecule and the [blank_start]oxygen[blank_end] atom on another water molecule is an example.
    

    1. Awater
    2. Boxygen
36. 36The two forms of attraction are [blank_start]co[blank_end]hesion and [blank_start]ad[blank_end]hesion.

    1. Aco
    2. Bad
37. 37An evenly (molecule) mixed mixture is called a [blank_start]solution[blank_end].

    1. Asolution
38. 38The greatest solvent in the world is [blank_start]water[blank_end].

    1. Awater
39. 39Suspension is mixtures of...

    1. AWater and dissolved material
    2. BWater and undissolved material
    3. CWater and partly dissolved material
40. 40The solute the substance that is dissolved in the solution.

    1. AVerdadero
    2. BFalso
41. 41The pH scale indicates the concentration of [blank_start]H+ ions[blank_end] in a [blank_start]solution[blank_end].

    1. Asolution
    2. BH+ ions
42. 42A solution with a pH of 4 has [blank_start]40[blank_end] [blank_start]H+[blank_end] [blank_start]ions[blank_end], while one with a pH of 5 has [blank_start]50[blank_end],

    1. A40
    2. B50
    3. CH+
    4. Dions
43. 43Basic solutions have pH levels [blank_start]high[blank_end]er than [blank_start]7[blank_end], and especially from [blank_start]11[blank_end] to [blank_start]14[blank_end].

    1. A7
    2. B11
    3. C14
    4. Dhigh
44. 44Buffers are [blank_start]weak[blank_end] [blank_start]acids/bases[blank_end] that can react with [blank_start]strong acids[blank_end] to prevent [blank_start]sharp[blank_end], [blank_start]sudden[blank_end] changes in pH.
    

    1. Aweak
    2. Bsharp
    3. Csudden
    4. Dstrong acids
    5. Eacids/bases
45. 45Carbohydrates contain the following atoms...

    1. AOxygen
    2. BHelium
    3. CCarbon
    4. DHydrogen
46. 46Single sugar molecules are also called [blank_start]Monosaccharides[blank_end]
    

    1. AMonosaccharides
47. 47Some monosaccarides are...

    1. AGlucose
    2. BGalactose
    3. CFructose
    4. DGlycogen
48. 48Some polysaccarides are...

    1. AGlucose
    2. BGlycogen
    3. CStarch
    4. DFructose
    5. ECellulose
49. 49What are the main functions of carbohydrates?

    1. AAs an energy suppliant
    2. BTo store starch
    3. CFor strength and rigidity in an animal/plant
50. 50What atoms are lipids made of?

    1. AHelium
    2. BHydrogen
    3. CCarbon
    4. DOxygen
51. 51THe three categories of lipids are...

    1. ASaturated
    2. BUnsaturated
    3. CMonosaturated
    4. DPolyunsaturated
52. 52When glycerol is combined with [blank_start]fatty acids[blank_end] a lipid is formed.

    1. Afatty acids
53. 53SATURATED LIPIDS contain one carbon bond, UNSATURATED LIPIDS contain 1+ carbon bonds, while POLYUNSATURATED LIPIDS contain 2+ carbon bonds

    1. AVerdadero
    2. BFalso
54. 54Nucleic acids contain what type of atoms

    1. AHydrogen
    2. BHelium
    3. CCarbon Dioxide
    4. DCarbon
    5. EOxygen
    6. FNitrogen
    7. GPhosporous
55. 55[blank_start]Nucleotides[blank_end] are the monomers of nucleic acids.

    1. ANucleotides
56. 56Nucleic acids are composed of a [blank_start]5-carbon[blank_end] sugar, a [blank_start]phosphate group[blank_end] [blank_start](-PO4)[blank_end], and a [blank_start]nitrogenous[blank_end] base.

    1. Aphosphate group
    2. B(-PO4)
    3. Cnitrogenous
    4. D5-carbon
57. 57Nucleic acids keep genetic information and transport energy.

    1. AVerdadero
    2. BFalso
58. 58RNA ([blank_start]Ribonucleic[blank_end] acid) is made out of [blank_start]ribose[blank_end] sugar and DNA ([blank_start]Deoxyribonucleic[blank_end] acid) is made out of [blank_start]deoxyribose[blank_end] sugar.

    1. Adeoxyribose
    2. BDeoxyribonucleic
    3. Cribose
    4. DRibonucleic
59. 59Proteins are composed of the atoms...

    1. ANitrogen
    2. BHelium
    3. CCarbon
    4. DPhosphorous
    5. EHydrogen
    6. FOxygen
60. 60The monomers of protein are...

    1. ACarbon bonds
    2. BAmino acids
    3. CProtein
    4. DProtein acids
61. 61Proteins
    1)Control the rate of reactions
    2)Regulate cell processes
    3)Form cell membranes
    4)Transport substances in or out of cells
    5)Work with the immune system
    

    1. AVerdadero
    2. BFalso
62. 62Valence electrons have [blank_start]stable[blank_end] or [blank_start]non-reactive[blank_end] [blank_start]shells[blank_end] and determine [blank_start]reactivity[blank_end] on the [blank_start]outer ring[blank_end] of the atom.

    1. Astable
    2. Bnon-reactive
    3. Cshells
    4. Dreactivity
    5. Eouter ring

Descripción

9th grade Biology (9) Test sobre 10.18.16 Test Guide, creado por Afia Oduro-Manu el 22/09/2016.

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Afia Oduro-Manu

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Creado el 22 sep 2016 · actualizado el 24 oct 2016

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