Afia Oduro-Manu
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9th grade Biology (9) Quiz on 10.18.16 Test Guide, created by Afia Oduro-Manu on 22/09/2016.

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Afia Oduro-Manu
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10.18.16 Test Guide

Question 1 of 62

1

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The basic unit of matter is called an

Explanation

Question 2 of 62

1

What subatomic particles make up atoms?

Select one or more of the following:

  • Isotopes

  • Protons

  • Particles

  • Neutrons

  • Molecules

  • Electrons

Explanation

Question 3 of 62

1

PROTONS determine an element's...

Select one or more of the following:

  • Atomic mass

  • Atomic number

  • Number on the periodic table

  • Atomic weight

  • Nucleus's Charge

Explanation

Question 4 of 62

1

Isotopes are...

Select one of the following:

  • 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

Explanation

Question 5 of 62

1

Where in an atom do PROTONS and NEUTRONS lie?

Select one of the following:

  • Orbit

  • Nucleus

  • Outside of the atom's orbit

  • Close to the circumference of the nuclues

Explanation

Question 6 of 62

1

All atoms of the same element have the same number of...

Select one of the following:

  • Electrons

  • Neutrons

  • Protons

  • Molecules

Explanation

Question 7 of 62

1

What subatomic particle determines what the element is?

Select one of the following:

  • Protons

  • Neutrons

  • Electrons

  • Isotopes

Explanation

Question 8 of 62

1

ELECTRONS orbit around the nucleus of an atom.

Select one of the following:

  • True
  • False

Explanation

Question 9 of 62

1

What is the weakest type of chemical bond?

Select one of the following:

  • Covalent

  • Hydrogen

  • Ionic

Explanation

Question 10 of 62

1

What element forms chemical bonds?

Select one of the following:

  • Oxygen

  • Carbon

  • Hydrogen

  • Helium

Explanation

Question 11 of 62

1

COVALENT BONDS are formed when...

Select one or more of the following:

  • 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

Explanation

Question 12 of 62

1

IONIC BONDS are formed when...

Select one of the following:

  • 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

Explanation

Question 13 of 62

1

The number of NEUTRONS and ELECTRONS in an atom are usually always the same.

Select one of the following:

  • True
  • False

Explanation

Question 14 of 62

1

How many types of substances make a CHEMICAL ELEMENT?

Select one of the following:

  • 1

  • 2

  • 3

  • 4

Explanation

Question 15 of 62

1

Why are atoms NEUTRAL despite having charged particles?

Select one of the following:

  • 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

Explanation

Question 16 of 62

1

How are isotopes identified?

Select one of the following:

  • Atomic number

  • Atomic mass

  • Atomic balance

  • Atomic neutrality

Explanation

Question 17 of 62

1

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Atomic ( mass, number, weight ) is the ( measured, weighted, divided ) average of the masses of an element's ( electrons, neutrons, protons, isotopes )

Explanation

Question 18 of 62

1

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WEIGHTED in Biology/Chemistry/Physics means the ( abundance, lack ) of each ( isotope, Electron, Proton, Neutron ) in ( nature, similarities, differences ) is considered when the average is calculated

Explanation

Question 19 of 62

1

Why do all isotopes of an element have the same chemical properties?

Select one of the following:

  • 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

Explanation

Question 20 of 62

1

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A chemical compound is formed when ( 0-1, 1-2, 2+, 2-3 ) elements are combined chemically

Explanation

Question 21 of 62

1

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The formula for table salt is ( SmCl, SoCl, NaCl, SiCl )

Explanation

Question 22 of 62

1

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Sodium is a ( gas, metal ) and chloride is a ( gas, metal ).

Explanation

Question 23 of 62

1

An ion is an atom that is...

Select one or more of the following:

  • Negatively charged

  • Positively charged

  • Neutrally charged

Explanation

Question 24 of 62

1

An atom that loses electrons has a negative charge.

Select one of the following:

  • True
  • False

Explanation

Question 25 of 62

1

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A ( single, triple, double ) ( covalent, ionic ) bond is formed when ( two, six, four ) electrons are shared.

Explanation

Question 26 of 62

1

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In a ( hydrogen, water ) molecule, each ( hydrogen, carbon ) atom forms a ( single, double ) covalent bond.

Explanation

Question 27 of 62

1

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The slight attractions that develop between oppositely charged region of nearby particles are called

Explanation

Question 28 of 62

1

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Acidic solutions are that form in solution.

Explanation

Question 29 of 62

1

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Water molecules are polar because of ( uneven, equal ) distribution ( between, outside of, around ) their two poles (the ( positive, negative ) attracts ( oxygen, hydrogen ) and the positive attracts ( oxygen, hydrogen ) atoms).

Explanation

Question 30 of 62

1

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Substances that combine physically form , while substances that combine chemically form .

Explanation

Question 31 of 62

1

Acidic solutions have lesser concentrations of H+ ions than pure water.

Select one of the following:

  • True
  • False

Explanation

Question 32 of 62

1

Basic solutions produce...

Select one or more of the following:

  • OH- (hydroxide) ions

  • Small amounts of H+ ions

  • O- ions

  • HO- ions

Explanation

Question 33 of 62

1

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solutions have pH levels below , and even from to .

Explanation

Question 34 of 62

1

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The polar, neutral WATER molecule has an equal amount of protons and electrons, each.

Explanation

Question 35 of 62

1

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The attraction between the hydrogen atom on molecule and the atom on another water molecule is an example.

Explanation

Question 36 of 62

1

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The two forms of attraction are hesion and hesion.

Explanation

Question 37 of 62

1

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An evenly (molecule) mixed mixture is called a .

Explanation

Question 38 of 62

1

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The greatest solvent in the world is .

Explanation

Question 39 of 62

1

Suspension is mixtures of...

Select one of the following:

  • Water and dissolved material

  • Water and undissolved material

  • Water and partly dissolved material

Explanation

Question 40 of 62

1

The solute the substance that is dissolved in the solution.

Select one of the following:

  • True
  • False

Explanation

Question 41 of 62

1

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The pH scale indicates the concentration of in a .

Explanation

Question 42 of 62

1

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A solution with a pH of 4 has , while one with a pH of 5 has ,

Explanation

Question 43 of 62

1

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Basic solutions have pH levels er than , and especially from to .

Explanation

Question 44 of 62

1

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Buffers are that can react with to prevent , changes in pH.

Explanation

Question 45 of 62

1

Carbohydrates contain the following atoms...

Select one or more of the following:

  • Oxygen

  • Helium

  • Carbon

  • Hydrogen

Explanation

Question 46 of 62

1

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Single sugar molecules are also called

Explanation

Question 47 of 62

1

Some monosaccarides are...

Select one or more of the following:

  • Glucose

  • Galactose

  • Fructose

  • Glycogen

Explanation

Question 48 of 62

1

Some polysaccarides are...

Select one or more of the following:

  • Glucose

  • Glycogen

  • Starch

  • Fructose

  • Cellulose

Explanation

Question 49 of 62

1

What are the main functions of carbohydrates?

Select one or more of the following:

  • As an energy suppliant

  • To store starch

  • For strength and rigidity in an animal/plant

Explanation

Question 50 of 62

1

What atoms are lipids made of?

Select one or more of the following:

  • Helium

  • Hydrogen

  • Carbon

  • Oxygen

Explanation

Question 51 of 62

1

THe three categories of lipids are...

Select one or more of the following:

  • Saturated

  • Unsaturated

  • Monosaturated

  • Polyunsaturated

Explanation

Question 52 of 62

1

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When glycerol is combined with a lipid is formed.

Explanation

Question 53 of 62

1

SATURATED LIPIDS contain one carbon bond, UNSATURATED LIPIDS contain 1+ carbon bonds, while POLYUNSATURATED LIPIDS contain 2+ carbon bonds

Select one of the following:

  • True
  • False

Explanation

Question 54 of 62

1

Nucleic acids contain what type of atoms

Select one or more of the following:

  • Hydrogen

  • Helium

  • Carbon Dioxide

  • Carbon

  • Oxygen

  • Nitrogen

  • Phosporous

Explanation

Question 55 of 62

1

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are the monomers of nucleic acids.

Explanation

Question 56 of 62

1

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Nucleic acids are composed of a sugar, a , and a base.

Explanation

Question 57 of 62

1

Nucleic acids keep genetic information and transport energy.

Select one of the following:

  • True
  • False

Explanation

Question 58 of 62

1

Fill the blank spaces to complete the text.

RNA ( acid) is made out of sugar and DNA ( acid) is made out of sugar.

Explanation

Question 59 of 62

1

Proteins are composed of the atoms...

Select one or more of the following:

  • Nitrogen

  • Helium

  • Carbon

  • Phosphorous

  • Hydrogen

  • Oxygen

Explanation

Question 60 of 62

1

The monomers of protein are...

Select one of the following:

  • Carbon bonds

  • Amino acids

  • Protein

  • Protein acids

Explanation

Question 61 of 62

1

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

Select one of the following:

  • True
  • False

Explanation

Question 62 of 62

1

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Valence electrons have or and determine on the of the atom.

Explanation

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