Nursing Entrance Practice Exam - Science Section.

Front 1

To be isotopes, two atoms of the same element must have a different number of:

Back 1

Neutrons

Front 2

Depending on its environment, a substance that can act as either an acid or a base is described as:

Back 2

Amphoteric

Front 3

A certain substance is not broken down in a chemical reaction. The substance is most likely:

Back 3

An element

Front 4

A hydrogen ion concentration of

1 x 10-7 M in a solution is considered:

Back 4

Neutral

Front 5

The heart is composed of what tissue type:

Back 5

Cardiac muscle

Front 6

Which of the following reactions releases heat energy:

a. double replacement

b. decomposition

c. endothermic

d. exothermic

Back 6

d

Front 7

What gas law states that the volume of a gas is inversely proportional to the pressure:

Back 7

Boyles law

Front 8

The xylem vessels of a plant are responsible for carrying:

Back 8

Water up through the plant.

Front 9

When placed in distilled water, a human RBC:

Back 9

Swells to a larger size

Front 10

During plant cell replication, the division of the cytoplasm is called:

Back 10

Cytokinesis

Front 11

Digestive enzymes can be found in which cellular organelle:

a. lysosomes

b. mitochondria

c. ribosomes

Back 11

a

Front 12

The process by which an enzyme acts on the substrate can be described by the:

Back 12

Lock-and-key model

Front 13

When an organism contains chloroplast in its cells, the color of the organism would most likely be:

Back 13

Green

Front 14

The strongest acid can be found in which of the following pH ranges:

a. 11.1-12

b. 7.1-8.2

c. 4.5-5.7

d. 1.0-2.0

Back 14

d

Front 15

N

Back 15

Nitrogen

Front 16

Na

Back 16

Sodium

Front 17

Cl

Back 17

Chlorine

Front 18

C

Back 18

Carbon

Front 19

Co

Back 19

Cobalt

Front 20

Ne

Back 20

Neon

Front 21

Au

Back 21

Gold

Front 22

Ag

Back 22

Silver

Front 23

O

Back 23

Oxygen

Front 24

K

Back 24

Potassium

Front 25

Cu

Back 25

Copper

Front 26

H

Back 26

Hydrogen

Front 27

He

Back 27

Helium

Front 28

Fe

Back 28

Iron

Front 29

Nb

Back 29

Niobium

Front 30

Hg

Back 30

Mercury

Front 31

B

Back 31

Boron

Front 32

F

Back 32

Fluorine

Front 33

Boyle's law + Charles' law + Avogradro's law =

Back 33

Ideal gas law

Front 34

The equation shows that, as absolute temperature increases, the volume of the gas also increases in proportion:

Back 34

Charles' law

Front 35

The ________ Gas Law states that a gas pressure x volume x temperature = constant

Back 35

Combined

Front 36

Universal donor

Back 36

Type O

Front 37

Universal recipient

Back 37

Type AB

Front 38

Blood type A can donate to:

Back 38

A's & AB

Front 39

Blood type B can donate to:

Back 39

B's & AB

Front 40

Blood type AB can donate to:

Back 40

AB only

Front 41

Carbohydrates and starches must be changed to ______ so that they can be used by cells.

Back 41

Glucose

Front 42

The stomach and mouth are connected by the:

Back 42

Esophagus

Front 43

The growth and development of bone is assisted by the use of vitamin D because Vitamin D can:

Back 43

Aid in the absorption of calcium

Front 44

Synapses are the gaps between:

Back 44

Neurons

Front 45

Provide a greater surface for absorption of materials passing through:

Back 45

Villi

Front 46

The process by which oxygen travels from air into your lungs and then into blood is called:

Back 46

Diffusion

Front 47

Bile is stored in the gallbladder, and helps digest ____ via _____________.

Back 47

-fats

-emulsification

Front 48

A light hits a smooth mirror at an angle of 45°. At what angle will the light be reflected:

Back 48

45°

Front 49

White light enters a prism and is broken up into colors of the rainbow. This phenomenon is called:

Back 49

Dispersion

Front 50

A laser beam of light is pointed through the air and then into a diamond. The beam of light then bends. This results from the process called:

Back 50

Refraction

Front 51

An atom becomes an ion that possesses a negative charge. The atom must have:

Back 51

Gained electrons

Front 52

Back 52

Resistance

Front 53

Electrical potential is measured in:

Back 53

Volts

Front 54

What term describes the electrons in the outermost principal energy level of an atom:

Back 54

Valence

Front 55

Blood with pH of 7.4 indicates that the blood sample is:

Back 55

Weakly basic

Front 56

When one liquid evaporates much quicker than another liquid, the first liquid is said to be more:

Back 56

Volatile

Front 57

When solid iodine becomes gaseous iodine with no apparent liquid phase in between, the process is called:

Back 57

Sublimation

Front 58

Which color pairing of light is most beneficial for photosynthesis:

Back 58

red/blue

Front 59

Which of a plant's organs are responsible for sexual reproduction:

Back 59

Flower

Front 60

The smaller molecules that are responsible for synthesis of starches are called:

Back 60

Monosaccharides

Front 61

Separating the left and right sides of the heart is the:

Back 61

Septum

Front 62

A secondary defense for the body against pathogens is:

Back 62

Inflammation

Front 63

The larynx is covered by the __________ so that food does not enter the trachea.

Back 63

epiglottis

Front 64

The organ that works to detoxify the blood and to produce bile is the:

Back 64

Liver

Front 65

Ligaments hold:

Back 65

Bone to bone

Front 66

A protease is an enzyme that works to digest:

Back 66

Proteins

Front 67

Newton's third law describes:

Back 67

Forces

Front 68

Newton's second law describes:

Back 68

Acceleration

Front 69

Newton's first law describes:

Back 69

Inertia

Front 70

Newtons (N) are measured in:

Back 70

kg·m/s2

Front 71

What is the name of the muscular tissue that contracts to permit air to enter the lungs:

Back 71

Diaphragm

Front 72

What is the function of a lysosome's membrane:

Back 72

It isolates and acidic environment for the lysosome's hydrolytic enzymes from the neutral pH of the cytoplasm.

Front 73

Oogenesis is the process by which:

Back 73

Primary oocytes produce eggs

Front 74

In a neutral atom the number of electrons is:

Back 74

Equal to the number of protons

Front 75

An element that contains a full outer shell is called a:

Back 75

Noble gas

Front 76

The location for the exchange of oxygen and carbon dioxide through thin membrane walls:

Back 76

Alveoli

Front 77

Rods and cones are light-sensitive cells inside the eye's:

Back 77

Retina

Front 78

Most of the nutrients in food are absorbed in the body's:

Back 78

Small intestine

Front 79

Carbohydrates include:

Back 79

-Starches

-Sugars

Front 80

In adult humans RBCs:

Back 80

Have no nucleus

Front 81

Saliva in the mouth begins the process of breaking down:

Back 81

Starch

Front 82

The atom of an element with an atomic number of 17 must have:

Back 82

17 protons

Front 83

An atom that is not electrically neutral is called:

Back 83

An ion

Front 84

The greater the electronegativity of an atom:

Back 84

The greater its attraction for bonding electrons is

Front 85

At high altitudes, the boiling point of water is _____ than at sea level.

Back 85

lower

Front 86

In electricity, a unit of resistance is called a(n):

Back 86

Ohm

Front 87

The energy of movement is known as:

Back 87

Kinetic energy

Front 88

The gallbladder is part of the _________ system.

Back 88

digestive

Front 89

The elbow is ______ to the shoulder.

Back 89

distal

Front 90

The ear is medial to the _______.

Back 90

cochlea

Front 91

What is the function of the vacuole:

Back 91

Storage

Front 92

What results from the first stage of meiosis:

Back 92

Two diploid cells

Front 93

What is the function of B cells:

Back 93

Production of antibodies

Front 94

What system controls metabolism:

Back 94

Endocrine

Front 95

Most human digestion takes place in the:

Back 95

Small intestine