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10.18.16 Test Guide

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9th grade Biology (9) Quiz on 10.18.16 Test Guide, created by Afia Oduro-Manu on 22/09/2016.
Afia Oduro-Manu
Quiz by Afia Oduro-Manu, updated more than 1 year ago
Afia Oduro-Manu
Created by Afia Oduro-Manu over 7 years ago
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Resource summary

Question 1

Question
The basic unit of matter is called an [blank_start]atom[blank_end]
Answer
  • atom

Question 2

Question
What subatomic particles make up atoms?
Answer
  • Isotopes
  • Protons
  • Particles
  • Neutrons
  • Molecules
  • Electrons

Question 3

Question
PROTONS determine an element's...
Answer
  • Atomic mass
  • Atomic number
  • Number on the periodic table
  • Atomic weight
  • Nucleus's Charge

Question 4

Question
Isotopes are...
Answer
  • Atoms of a DIFFERENT element that have the SAME number of neutrons they contain
  • ATOMS of a DIFFERENT element that have DIFFERENT number of neutrons
  • Atoms of the SAME element that DIFFER in the number of neutrons the contain
  • Atoms of the SAME element that have the SAME number of neutrons

Question 5

Question
Where in an atom do PROTONS and NEUTRONS lie?
Answer
  • Orbit
  • Nucleus
  • Outside of the atom's orbit
  • Close to the circumference of the nuclues

Question 6

Question
All atoms of the same element have the same number of...
Answer
  • Electrons
  • Neutrons
  • Protons
  • Molecules

Question 7

Question
What subatomic particle determines what the element is?
Answer
  • Protons
  • Neutrons
  • Electrons
  • Isotopes

Question 8

Question
ELECTRONS orbit around the nucleus of an atom.
Answer
  • True
  • False

Question 9

Question
What is the weakest type of chemical bond?
Answer
  • Covalent
  • Hydrogen
  • Ionic

Question 10

Question
What element forms chemical bonds?
Answer
  • Oxygen
  • Carbon
  • Hydrogen
  • Helium

Question 11

Question
COVALENT BONDS are formed when...
Answer
  • Electrons in an atom are transferred to another atom
  • Electrons in an atom are shared
  • Electrons in an atom bond with the atom's neutrons
  • Electrons travel between the nuclei of both atoms

Question 12

Question
IONIC BONDS are formed when...
Answer
  • Electrons are “stolen” from one atom and taken to the next
  • Electrons are shared between atoms
  • Some of the atom's electrons are transferred to another atom
  • Another atom destroys its own protons to weaken its bond

Question 13

Question
The number of NEUTRONS and ELECTRONS in an atom are usually always the same.
Answer
  • True
  • False

Question 14

Question
How many types of substances make a CHEMICAL ELEMENT?
Answer
  • 1
  • 2
  • 3
  • 4

Question 15

Question
Why are atoms NEUTRAL despite having charged particles?
Answer
  • Same amount of PROTONS and ELECTRONS balance out the charge in an atom
  • Same amount of PROTONS and NEUTRONS balance out the charge in an atom
  • Different amounts of PROTONS and ELECTRONS maintain stability in an atom
  • Different amounts of ELECTRONS and NEUTRONS balance out the charges in an atom

Question 16

Question
How are isotopes identified?
Answer
  • Atomic number
  • Atomic mass
  • Atomic balance
  • Atomic neutrality

Question 17

Question
Atomic [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]
Answer
  • mass
  • number
  • weight
  • measured
  • weighted
  • divided
  • electrons
  • neutrons
  • protons
  • isotopes

Question 18

Question
WEIGHTED 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
Answer
  • abundance
  • lack
  • isotope
  • Electron
  • Proton
  • Neutron
  • nature
  • similarities
  • differences

Question 19

Question
Why do all isotopes of an element have the same chemical properties?
Answer
  • Because they have DIFFERENT numbers of PROTONS
  • Because they have ALMOST EQUAL amounts of MOLECULES
  • Because they have DIFFERENT numbers of NEUTRONS
  • Because they SHARE the same number of ELECTRONS

Question 20

Question
A chemical compound is formed when [blank_start]2+[blank_end] elements are combined chemically
Answer
  • 0-1
  • 1-2
  • 2+
  • 2-3

Question 21

Question
The formula for table salt is [blank_start]NaCl[blank_end]
Answer
  • SmCl
  • SoCl
  • NaCl
  • SiCl

Question 22

Question
Sodium is a [blank_start]metal[blank_end] and chloride is a [blank_start]gas[blank_end].
Answer
  • gas
  • metal
  • gas
  • metal

Question 23

Question
An ion is an atom that is...
Answer
  • Negatively charged
  • Positively charged
  • Neutrally charged

Question 24

Question
An atom that loses electrons has a negative charge.
Answer
  • True
  • False

Question 25

Question
A [blank_start]triple[blank_end] [blank_start]covalent[blank_end] bond is formed when [blank_start]six[blank_end] electrons are shared.
Answer
  • covalent
  • ionic
  • single
  • triple
  • double
  • two
  • six
  • four

Question 26

Question
In a [blank_start]water[blank_end] molecule, each [blank_start]hydrogen[blank_end] atom forms a [blank_start]single[blank_end] covalent bond.
Answer
  • hydrogen
  • water
  • hydrogen
  • carbon
  • single
  • double

Question 27

Question
The slight attractions that develop between oppositely charged region of nearby particles are called [blank_start]Van der Waals forces[blank_end]
Answer
  • Van der Waals forces

Question 28

Question
Acidic solutions are [blank_start]compounds[blank_end] that form [blank_start]H+ ions[blank_end] in solution.
Answer
  • compounds
  • H+ ions

Question 29

Question
Water 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).
Answer
  • uneven
  • equal
  • positive
  • negative
  • oxygen
  • hydrogen
  • oxygen
  • hydrogen
  • between
  • outside of
  • around

Question 30

Question
Substances that combine physically form [blank_start]mixtures[blank_end], while substances that combine chemically form [blank_start]compounds[blank_end].
Answer
  • mixtures
  • compounds

Question 31

Question
Acidic solutions have lesser concentrations of H+ ions than pure water.
Answer
  • True
  • False

Question 32

Question
Basic solutions produce...
Answer
  • OH- (hydroxide) ions
  • Small amounts of H+ ions
  • O- ions
  • HO- ions

Question 33

Question
[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].
Answer
  • Acidic
  • 7
  • 1
  • 3

Question 34

Question
The polar, neutral WATER molecule has an equal amount of protons and electrons, [blank_start]10[blank_end] each.
Answer
  • 10

Question 35

Question
The 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.
Answer
  • water
  • oxygen

Question 36

Question
The two forms of attraction are [blank_start]co[blank_end]hesion and [blank_start]ad[blank_end]hesion.
Answer
  • co
  • ad

Question 37

Question
An evenly (molecule) mixed mixture is called a [blank_start]solution[blank_end].
Answer
  • solution

Question 38

Question
The greatest solvent in the world is [blank_start]water[blank_end].
Answer
  • water

Question 39

Question
Suspension is mixtures of...
Answer
  • Water and dissolved material
  • Water and undissolved material
  • Water and partly dissolved material

Question 40

Question
The solute the substance that is dissolved in the solution.
Answer
  • True
  • False

Question 41

Question
The pH scale indicates the concentration of [blank_start]H+ ions[blank_end] in a [blank_start]solution[blank_end].
Answer
  • solution
  • H+ ions

Question 42

Question
A 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],
Answer
  • 40
  • 50
  • H+
  • ions

Question 43

Question
Basic 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].
Answer
  • 7
  • 11
  • 14
  • high

Question 44

Question
Buffers 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.
Answer
  • weak
  • sharp
  • sudden
  • strong acids
  • acids/bases

Question 45

Question
Carbohydrates contain the following atoms...
Answer
  • Oxygen
  • Helium
  • Carbon
  • Hydrogen

Question 46

Question
Single sugar molecules are also called [blank_start]Monosaccharides[blank_end]
Answer
  • Monosaccharides

Question 47

Question
Some monosaccarides are...
Answer
  • Glucose
  • Galactose
  • Fructose
  • Glycogen

Question 48

Question
Some polysaccarides are...
Answer
  • Glucose
  • Glycogen
  • Starch
  • Fructose
  • Cellulose

Question 49

Question
What are the main functions of carbohydrates?
Answer
  • As an energy suppliant
  • To store starch
  • For strength and rigidity in an animal/plant

Question 50

Question
What atoms are lipids made of?
Answer
  • Helium
  • Hydrogen
  • Carbon
  • Oxygen

Question 51

Question
THe three categories of lipids are...
Answer
  • Saturated
  • Unsaturated
  • Monosaturated
  • Polyunsaturated

Question 52

Question
When glycerol is combined with [blank_start]fatty acids[blank_end] a lipid is formed.
Answer
  • fatty acids

Question 53

Question
SATURATED LIPIDS contain one carbon bond, UNSATURATED LIPIDS contain 1+ carbon bonds, while POLYUNSATURATED LIPIDS contain 2+ carbon bonds
Answer
  • True
  • False

Question 54

Question
Nucleic acids contain what type of atoms
Answer
  • Hydrogen
  • Helium
  • Carbon Dioxide
  • Carbon
  • Oxygen
  • Nitrogen
  • Phosporous

Question 55

Question
[blank_start]Nucleotides[blank_end] are the monomers of nucleic acids.
Answer
  • Nucleotides

Question 56

Question
Nucleic 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.
Answer
  • phosphate group
  • (-PO4)
  • nitrogenous
  • 5-carbon

Question 57

Question
Nucleic acids keep genetic information and transport energy.
Answer
  • True
  • False

Question 58

Question
RNA ([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.
Answer
  • deoxyribose
  • Deoxyribonucleic
  • ribose
  • Ribonucleic

Question 59

Question
Proteins are composed of the atoms...
Answer
  • Nitrogen
  • Helium
  • Carbon
  • Phosphorous
  • Hydrogen
  • Oxygen

Question 60

Question
The monomers of protein are...
Answer
  • Carbon bonds
  • Amino acids
  • Protein
  • Protein acids

Question 61

Question
Proteins 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
Answer
  • True
  • False

Question 62

Question
Valence 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.
Answer
  • stable
  • non-reactive
  • shells
  • reactivity
  • outer ring
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