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Anatomy & Phys I Chem Review

Total questions: 66

Worksheet time: 1hrs 7mins

Name
Class
Date
1.

A covalent bond forms

a)

when one or more electrons are transferred from one atom to another.

b)

when electrons are shared between atoms.

2.

What two sub-atomic particles are found in the nucleus of an atom?

a)

Neutrons and Protons

b)

Shells and Electrons

c)

Electrons and Protons

d)

Electrons and Neutrons

3.
Bond created by the sharing of electrons
a)
Ionic Bond
b)
Hydrogen Bond
c)
Covalent Bond
d)
van der Waals
4.

A cation is an ion with a positive charge.

a)

true

b)

false

5.

Which subatomic part of an atom gives it a positive charge?

a)

Neutron

b)

Proton

c)

Electron

d)

Nucleus

6.

What is the smallest 'building block' of the elements that make up the universe?

a)

An atom

b)

An electron

c)

A proton

d)

A cell

7.

A substance with a pH of 8 is a

a)

acid

b)

base

c)

neutral

8.

Acids have more ______ ions than bases

a)

OH-

b)

H-

c)

OH+

d)

H+

9.

An example of a carbohydrate would be

a)

meat

b)

milk

c)

eggs

d)

bread

10.

Which of the following would be considered most acidic?

a)

1

b)

3

c)

7

d)

13

11.

A substance that changes the rate of a chemical reaction without being used up in the reaction is called a ________________.

a)

bond

b)

catalyst

c)

acid

d)

ion

12.

Which region of an atom has a negative charge?

a)

The nucleus

b)

Both nucleus and electron cloud

c)

The neutrons

d)

The electron cloud

13.

The number of protons in the nucleus of an atom?

a)

Isotope

b)

Atomic mass

c)

Atomic number

d)

Element

14.

Which subatomic part of an atom gives it a positive charge?

a)

Neutron

b)

Proton

c)

Electron

d)

Nucleus

15.

Which one of the following is the most common element found in the body?

a)

Oxygen

b)

Carbon

c)

Hydrogen

d)

Nitrogen

16.

Which element is present in all life forms?

a)

adenosine triphosphate (ATP)

b)

carbon

c)

molecule

d)

compound

17.

Important functions of water include which of the following?

a)

Provides cushioning

b)

Acts as a transport medium

c)

Participates in chemical reactions

d)

Acts as a solvent for sugars, salts, and other solutes

e)

Reduces temperature fluctuations

18.

Acidic substances include which of the following?

a)

Blood

b)

Water

c)

Gastric juice

d)

Egg white

e)

Lye

19.

Which of the following is classified as an inorganic compound?

a)

glucose

b)

triglyceride

c)

water

d)

protein

e)

steroid

20.

We can't live without water! What is it's chemical formula?

a)

H2

b)

H20

c)

H202

d)

H3O

21.

An electron is

a)

positively charged

b)

neutral

c)

negatively charged

22.

Which term is based on the Greek root word for "uncut" or "indivisible"?

a)

atom

b)

element

c)

molecule

d)

chemical

e)

electron

23.

An atom's atomic mass is best described as the mass of

a)

protons it contains

b)

neutrons it contains

c)

electrons in the outermost shell

d)

protons and neutrons it contains

e)

protons and electrons it contains

24.

Potential energy is best described as the

a)

ability to do work

b)

energy of motion of molecules

c)

energy that comes from the sun

d)

energy in the nucleus of an atom

e)

stored energy that is available to do work

25.
the central region of an atom where its neutrons and protons are is its 
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
26.
A particle that moves around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
27.
Nucleic acids are one of the four major macromolecules.  The main functions of nucleic acids are to
a)
store and transport energy and structural components in the cell.
b)
act as enzymes, cell signals, and structural support for the cell.
c)
carry genetic material and create structures inside the cell.
d)
aid in development, the immune system, and blood clotting.
28.
Protein molecules are composed of long chains of __________ .
a)
ribosomes
b)
RNA
c)
amino acids
d)
DNA
29.
The major macromolecules of life are:
a)
lipids, proteins, carbohydrates, nucleic acids
b)
nucleic acid and water
c)
lipids and fats
d)
DNA
30.
What is the pH of water?
a)
0
b)
4
c)
7
d)
14
31.
What is the pH range of a base?
a)
0-6.9
b)
7.1-14
c)
0-14
d)
7
32.

Building blocks of carbohydrates

a)

monosaccharides

b)

glycerol and fatty acids

c)

neucleotides

d)

amino acids

33.

Building blocks of lipids

a)

monosaccharides

b)

glycerol and fatty acids

c)

neucleotides

d)

amino acids

34.

Building blocks of proteins

a)

monosaccharides

b)

glycerol and fatty acids

c)

neucleotides

d)

amino acids

35.

Building blocks of DNA or RNA

a)

monosaccharides

b)

glycerol and fatty acids

c)

neucleotides

d)

amino acids

36.
Which food is the most acidic?
a)
bananas
b)
lemon juice
c)
orange juice
37.
A solution with a pH of 7 is________
a)
increasing
b)
neutral
c)
decreasing
d)
apple juice
38.
What would be considered the weakest base? 
a)
8
b)
14
c)
7.8
d)
11.6
39.
Anything that takes up space and has mass is known as _______________.
a)
Matter
b)
Molecules
c)
Compounds
d)
Stuff
40.

What is being shared by two elements bonded covalently?

a)

Atoms

b)

Protons

c)

Electrons

d)

Neutrons

41.
Glucose is a ________________.
a)
monosaccharide
b)
disaccharide
c)
polysaccharide
d)
oligosaccharide
42.
Amylose (starch) is a _____________. 
a)
monosaccharide
b)
disaccharide
c)
polysaccharide
d)
unsaccharide
43.
Lactose is a ____________.
a)
monosaccharide
b)
disaccharide
c)
polysaccharide
d)
unsaccharide
44.
Glycogen is a _____________.
a)
monosaccharide
b)
disaccharide
c)
polysaccharide
d)
unsaccharide
45.
Lactose is made up of __________ and ___________.
a)
glucose and glucose
b)
fructose and glucose
c)
glucose and galactose
d)
fructose and fructose
46.

What elements are found in carbohydrates? (select all that are correct)

a)

carbon

b)

nitrogen

c)

hydrogen

d)

oxygen

e)

silicon

47.
Triglycerides are composed of glycerol and ___ fatty acid chains.
a)
two
b)
three
c)
four
d)
no
48.

What molecule is this?

a)

Triglyceride

b)

Saturated Fatty Acid

c)

Biodiesel

d)

Glycerol

e)

Unsaturated Fatty Acid

49.

What molecule is this?

a)

Triglyceride

b)

Saturated Fatty Acid

c)

Biodiesel

d)

Glycerol

e)

Unsaturated Fatty Acid

50.

Phosphate groups are

a)

hydrophobic

b)

hydrophilic

c)

neutral

d)

uncharged

51.

Which part of the phospholipid molecule is hydrophobic?

a)

phosphate head

b)

glycerol

c)

fatty acid tail

d)

the entire molecule is hydrophobic

52.

Which part of the phospholipid molecule is hydrophilic?

a)

phosphate head

b)

glycerol

c)

fatty acid tail

d)

the entire molecule is hydrophobic

53.
___________ strengthens and stabilizes the cell membrane.
a)
Carbohydrates 
b)
Proteins 
c)
Phospholipids 
d)
Cholesterol
54.

Phospholipids are important cell membrane components because:

a)

They have glycerol

b)

The combine covalently with proteins

c)

They have surfactant properties

d)

They form bilayers in water

55.

Identify the type of reaction that involves the synthesis of larger molecules from smaller simpler molecules

a)

Metabolism

b)

Anabolic reaction

c)

Digestion

d)

Catabolic reaction

56.

Digestion would be what type of reaction?

a)

Catabolic reaction

b)

Metabolic reaction

c)

Anabolic reaction

d)

Synthesis

57.

Identify where in a cell protein synthesis occurs

a)

Chloroplast

b)

Nucleus

c)

Mitochondrion

d)

Ribosome

58.

Molecules that either form body structures or carry out bodily functions

a)

enzymes

b)

proteins

c)

amino acids

d)

substrate

59.

The molecule that an enzyme acts on

a)

active site

b)

coenzyme

c)

substrate

d)

protein

60.

A molecule that competes with the substrate for the active site (toxin/poison).

a)

competitive inhibitor

b)

coenzyme

c)

substrate

d)

denature

61.

The location on the enzyme where the substrate attaches

a)

denature

b)

essential amino acid

c)

induced fit

d)

active site

62.

When the enzyme loses its functional shape

a)

competitive inhibitor

b)

coenzyme

c)

induced fit

d)

denature

63.

Amino acids that must come from food as our bodies cannot make them

a)

Non-essential amino acids

b)

Essential amino acids

c)

Enzymes

d)

Peptide bonds

64.

The alteration of the active site allowing the enzyme and it’s substrate to fit together better is described by

a)

lock-and-key model

b)

induced fit model

c)

activation energy

d)

peptide bond

65.
The energy needed to start a reaction
a)
activation energy
b)
adhesion energy
c)
chemical energy
d)
cohesion energy
66.

What property of atoms makes a molecule polar?

a)

Electronegativity (describes the tendency of an atom to attract electrons and form bonds)

b)

radius of the atom (a measure of the size of its atom)

c)

ionization energy (measure of the difficulty in removing an electron from an atom or ion)

d)

electron affinity (the amount of energy released when an electron is added to a neutral atom)

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