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Biology chapter 2 vocabulary words

Total questions: 39

Worksheet time: 20mins

Name
Class
Date
1.

What is an atom

a)

Basic unit of matter

b)

Basic unit of water

c)

basic unit of measurement

d)

Basic unit of life

2.

What is a nucleus

a)

The center of a donut

b)

The center of an atom, which contains the protons and neutrons; in cells, structure that contains the cell’s genetic material in the form of DNA

c)

An atom

d)

An ion

3.

What is an electron

a)

A neutral charged particle

b)

A particle

c)

A positively charged particle; located in the space surrounding the nucleus

d)

Negatively charged particle; located in the space surrounding the nucleus

4.

What is an element

a)

A car

b)

A substance that is made of matter

c)

Pure substance that consists entirely of one type of atom

d)

pure substance that consists entirely of air

5.

What is an isotope

a)

One of several forms of a single element, which contains the same number of protons but different numbers of neutrons

b)

An element that contains the same number of protons and neutrons

c)

A proton and a neutron combined

d)

A proton and an ion

6.

What is a compound

a)

Substance formed by the chemical combination of two or more elements in definite proportions

b)

Substance formed by the combination of a proton and a neutron

c)

An element

d)

A tree like substance

7.

what is an ionic bond

a)

Chemical bond formed when one or more protons are transferred from one atom to another

b)

Chemical bond formed when one or more electrons are transferred from one atom to another

c)

A chemical bond

d)

When two ions bond together

8.

What is an ion

a)

Atom that has a positive or negative charge

b)

An atom that is the biggest

c)

A bond between human and animal

d)

An animal

9.

What is a covalent bond

a)

Type of bond between cells in which DNA is shared

b)

Type of bond between atoms in which the protons are shared

c)

Type of bond between atoms in which the electrons are shared

d)

A bond between atoms

10.

What is a molecule

a)

Smallest unit of most compounds that displays all the properties of that compound

b)

Basic unit of most compounds

c)

Basic unit of life

d)

A plant’s cell structure

11.

What is the Van der Waals forces

a)

Slight attraction that develops between oppositely charged regions of nearby molecules

b)

Attraction between same charged molecules

c)

Attraction between same charged particles

d)

Oppositely charged regions

12.

What is a hydrogen bond

a)

Weak attraction between a hydrogen atom and another atom

b)

Attraction between an atom and another atom

c)

Attraction between an atom and a cell

d)

A bond between atoms

13.

What is cohesion

a)

Attraction between molecules of the different substance

b)

Attraction between molecules of the same substance

c)

Molecules and atoms

d)

Atoms and cells

14.

What is adhesion

a)

Force of attraction between magnets

b)

Force of attraction between different kinds of elements

c)

Force of attraction between different kinds of molecules

d)

Force of attraction between different kinds of compounds

15.

What is a mixture

a)

Material composed of two or more elements or compounds that are physically mixed together but not chemically combined

b)

Material composed of two or more aqueous solutions or compounds that are chemically combined

c)

When two or more protons, neutrons, ions, and electrons or compounds that are physically mixed together but not chemically combined

d)

When a compound is chemically combined with another compound

16.

What is a solution

a)

type of compound in which all elements are unevenly distributed

b)

Type of mixture in which all compounents are evenly distributed

c)

A compound and a mixture put together

d)

Type of mixture in which all the compounents are partially distributed

17.

What is a solute

a)

Substance that is dissolved in acid

b)

Substance that is dissolved water

c)

The result of a racemic mixture

d)

Substance that is dissolved in a solution

18.

What is a solvent

a)

Dissolving substance in a solution

b)

Dissolving substance in a compound

c)

Dissolving substance in a element

d)

Substance in a proton

19.

What is a suspension

a)

Mixture of water and nondissolved material

b)

Mixture of water and air

c)

A nondissolved solute

d)

A combined material

20.

What is a pH scale

a)

Scale that measures mass

b)

Scale that measures atmospheric pressure

c)

Scale with values from 0 to 14, used to measure the concentration of H+ ions in a solution; a pH of 0 to 7 is acidic, a pH of 7 is neutral, and a pH of 7 to 14 is basic

d)

Scale that measures the weight of food

21.

What is an acid

a)

What you use to get high

b)

Compound that forms hydrogen ions (H+) in solution; a solution with a pH of less than 7

c)

A solution with a pH of more than 7

d)

A compound that forms OH- in a solution

22.

What is a base

a)

Compound that produces hydroxide ions (OH-) in solution; solution with a pH of more than 7

b)

Solution with a pH of less than 7

c)

Compound that produces H+ in a solution

d)

An instrument

23.

What is a buffer

a)

A person to change the subject of a conversation

b)

What your video does when you have slow WiFi

c)

Compound that prevents sharp, sudden changes in pH

d)

Decreases the impact in an accident

24.

What is a monomer

a)

Small chemical unit that makes up a polymer

b)

Small chemical unit that makes up a lipid

c)

Small chemical unit that makes up a protein

d)

Chemical unit that makes up nucleic acid

25.

What is a polymer

a)

Molecule that makes up macromolecules

b)

Molecule composed of many monomers; makes up macromolecules

c)

Makes up carbon

d)

Makes up amino acid

26.

What is a carbohydrate

a)

Compound made up of proteins

b)

Compound made of molecules

c)

Compound made up of carbon, hydrogen, and oxygen atoms; type of nutrient that is the major source of energy for the body

d)

Compound made of nucleotides

27.

What is a monosaccharide

a)

Simple paper molecule

b)

Simple grass molecule

c)

simple salt molecule

d)

Simple sugar molecule

28.

What is a lipid

a)

Macromolecule made mostly from polymer and hydrogen atoms; includes fats, oils, and waxes

b)

Macromolecule made mostly from carbon and hydrogen atoms; includes fats, oils, and waxes

c)

Macromolecule made of carbohydrates and hydrogen atoms

d)

Macromolecule made mostly of fats

29.

What is a nucleic acid

a)

Macromolecule containing oxygen, nitrogen, and carbon

b)

Macromolecule containing hydrogen, nitrogen, and phosphorus

c)

Macromolecule containing hydrogen, oxygen, and carbon

d)

Macromolecule containing hydrogen, oxygen, nitrogen, carbon, and phosphorus

30.

What is a nucleotide

a)

Subunit of which nucleic acids are composed; made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base

b)

A 5-carbon sugar and a nitrogenous base

c)

A phosphate group, and a hydrogen atom

d)

Made up of a a phosphate and a nitrogenous base

31.

What is a protein

a)

Needed by the body for homeostasis

b)

Macromolecule that contains carbon and nitrogen

c)

Macromolecule that contains carbon, hydrogen and oxygen; needed by the body for growth and repair

d)

Macromolecule that contains carbon, hydrogen, oxygen, and nitrogen; needed by the body for growth and repair

32.

What is an amino acid

a)

element with an amino group on one end and a carboxyl group on the other end

b)

Compound with an amino group on one end and a carboxyl group on the other end

c)

A compound with an amino group

d)

An amino group and a carboxyl group

33.

What is a chemical reaction

a)

Process that combines one set of chemicals with another set of chemicals

b)

Process that changes, or transforms, one set of chemicals into another set of chemicals

c)

A set of chemicals come together

d)

Chemicals that are the same

34.

What is a reactant

a)

element or compound that enter into chemical reaction

b)

Atom that enters into chemical reaction

c)

A thing that reacts in science

d)

A rubber tire

35.

What is a product

a)

Element or chemical produced by an atom

b)

Element or compound produced by a chemical reaction

c)

A material made up of elements

d)

An enzyme

36.

What is activation energy

a)

Energy that is needed to get a reaction started

b)

A catalyst

c)

Is used to speed up a reaction

d)

The energy that is released in the beginning of a chemical reaction

37.

What is a catalyst

a)

Substance that speeds up the rate of a chemical reaction

b)

Substance that slows down the rate of a chemical reaction

c)

Substance that doesn’t effect the rate of the chemical reaction

d)

Helps the chemical reaction stabilize

38.

What is a enzyme

a)

Protein catalyst that speeds up the rate of specific biological reactions

b)

Protein reactant that slows down the rate of specific biological reaction

c)

A protein

d)

An amino acid

39.

What is a substrate

a)

Product of an enzyme-catalyzed reaction

b)

Product of an protein-catalyzed reaction

c)

Substance of an enzyme-catalyzed reaction

d)

Reactant of an enzyme-catalyze reaction