A/p Ch 3

Front 1

Which is NOT one of the major elements present in the human body?

Back 1

Iron

Front 2

Which of the following is NOT a subatomic particle?

Back 2

Isotope

Front 3

The total number of electrons in an atom equals the number of?

Back 3

Protons in its nucleus

Front 4

An atom can be described as chemically stable if its outermost electron shell contains:

Back 4

Eight electrons

Front 5

Isotopes are atoms of elements that differ in their number of:

Back 5

Neutrons

Front 6

Ionic bonds are chemical bonds formed by the:

Back 6

Transfer of electons from one atom to another.

Front 7

Chemical bonds formed by the sharing of electrons are called:

Back 7

Covalent

Front 8

True or False: Matter is a term used by chemists to describe all the materials or substances around us?

Back 8

TRUE

Front 9

True or False: Mass number refers to the number of protons plus the number of neutrons in atoms nucleus?

Back 9

TRUE

Front 10

True or False: Sodium chloride is an example of a covalent bond?

Back 10

FALSE

Front 11

True or False: Hydrogen bonds form from an equal charge distribution within a molecule?

Back 11

FALSE

Front 12

True ir False: Chemist John Dalton proposed the concept that all matter is composed of atoms?

Back 12

TRUE

Front 13

True or False: Alpha particles are a type of radiation that travels at a reported speed of 18,000 miles per second?

Back 13

TRUE

Front 14

What element is O?

Back 14

Oxygen

Front 15

What element is Ca?

Back 15

Calcium

Front 16

What element is K?

Back 16

Potassium

Front 17

What element is Na?

Back 17

Sodium

Front 18

What element is Mg?

Back 18

Magnesium

Front 19

What element is Fe?

Back 19

Iron

Front 20

What element is Se?

Back 20

Selenium

Front 21

An ionic bond may also be referred to as an....?

Back 21

Electrovalent

Front 22

_________ is anything that has mass and occupies space?

Back 22

Matter

Front 23

A bond that results from an unequal charge distribution on molecules is a __________ bond?

Back 23

Hydrogen bond

Front 24

The cloud model concept is called a ____________ _____________ and refers to the possibility of finding an electron at any specific location outside the nucleus.

Back 24

Probability distribution

Front 25

Helium is an _______, or stable element.

Back 25

Inert

Front 26

When two or more substances called reactants combine to form a different, more complex substance, it is known as __________ _________.

Back 26

Synthesis reaction

Front 27

___________ ____________ result in the breakdown of a complex substance into two or more simpler substances.

Back 27

Decomposition reactions

Front 28

_________ __________ proceed in both directions.

Back 28

Reversable reactions

Front 29

When two different reactants exchange components and, as a result, from two new products, they are known as _________ _________?

Back 29

Exchange reactions

Front 30

The ability of the body to form new tissue in wound repair is a good example of _________ ____________?

Back 30

Synthesis reaction

Front 31

Water plays a key role in such process as:

A) Cell permeability

B) Active transport of materials

C) Secretion

D) All of the above

Back 31

D) all of the above

Front 32

Which of the following is NOT a property of water?

A) strong polarity

B) high specific heat

C) high heat of vaporization

D) strong acidity

Back 32

D) strong acidity

Front 33

Acids:

a) are proton donors

b) release hydrogen ions when in solution

c) dye litmus blue

d) accept electrons when in an aqueous solution

Back 33

B) Acid releases hydrogen ions when in a solution

Front 34

Substances that accept hydrogen ions are referred to as:

a) acids

b) bases

c) buffers

d) salts

Back 34

B) Bases accept hydrogen ions

Front 35

The consistency of the homeostatic mechanism is caused by the presence of substances called:

A) salts

B) bases

C) buffers

D) acids

Back 35

C ) Buffers

Front 36

T or F: The pH scale indicates the degree of acidity or alkaline of a solution?

Back 36

TRUE

Front 37

T or F: Milk is acid on the pH scale?

Back 37

TRUE

Front 38

T or F: Litmus will turn red in the presence of an acid?

Back 38

TRUE

Front 39

T or F: The basic substance of each cell is water?

Back 39

TRUE

Front 40

T or F: Oxygen and carbon dioxide are examples of organic compounds?

Back 40

FALSE

Front 41

Which number identifies the element?

A) isotopes

B) element

C) polar

D) octet rule

E) Protons

Back 41

E) Protons - this number identifies the element

Front 42

_________atoms with fewer than eight electrons in the outer energy level will attempt to lose, gain or share electrons with other atoms to achieve stability?

A) isotopesB) elementC) polarD) octet ruleE) Protons

Back 42

D) Octet rule

Front 43

Deuterium and tritium:

A) isotopesB) elementC) polarD) octet ruleE) Protons

Back 43

A) Isotopes

Front 44

Hydrogen bond that results from an unequal charge distribution on a molecule:

A) isotopesB) elementC) polarD) octet ruleE) Protons

Back 44

C ) Polar

Front 45

Cannot be broken down:

A) isotopesB) elementC) polarD) octet ruleE) Protons

Back 45

B) Element

Front 46

Which one is a major element in the body?

A) iron

B) iodine

C) sulfur

D) zinc

Back 46

C ) Sulfur

Front 47

A negatively charged subatomic particle is a (an)?

A) proton

B) neutron

C) isotron

D) electron

Back 47

D) Electron

Front 48

AB + CD ➡AD + CB symbolizes a formula for:

A) synthesis reactions

B) decomposition reactions

C) exchange reactions

D) reversible reactions

Back 48

C) Exchange reactions

Front 49

Which element is stable?

A) helium

B) carbon

C) oxygen

D) hydrogen

Back 49

A) helium

Front 50

Which of the following bonds is the weakest?

A) NaCl

B) H2

C) H2O

D) CO2

Back 50

C) H20

Front 51

Which one is an example of an element?

A) Ca

B) CO2

C) H2O

D) NaCl

Back 51

A) Ca

Front 52

This reaction occurs when a complex nutrient is broken down in a cell to release energy for other cellular functions:

A) decomposition reaction

B) synthesis reaction

C) exchange reaction

D) product reaction

Back 52

A) decomposition reaction

Front 53

What substances are combined to form more complex substances, it is called:

A) decomposition reactions

B) synthesis reactions

C) exchange reaction

D) reversible reaction

Back 53

B) synthesis reactions

Front 54

If an atom's outermost shell contains eight electrons it may be described as:

A) ionic

B) covalent

C) chemically stable

D) synthesized

Back 54

C) Chemically stable

Front 55

Each element is identified by its atomic number, which is the number of ______ in the nucleus.

A) neutrons

B) protons

C) electrons

D) isotopes

Back 55

B) Protons

Front 56

Biochemistry is...

Back 56

The field of chemistry that deals with living organisms

Front 57

Largest naturally occurring atom is?

Back 57

Uranium

Front 58

True or False: Hydrogen, carbon and oxygen react chemically because they do not satisfy the octet rule?

Back 58

TRUE

Front 59

What are the most abundant elements in the body?

Back 59

O, C, H and N

Front 60

What are the only kinds of atoms that contain 6 protons and have an atomic number of 6?

Back 60

ALL carbon atoms, and only carbon atoms

Front 61

Smallest living unit of structure and function in the body are?

Back 61

Cells

Front 62

The mediastinum contains all except?

Back 62

Right lung

Front 63

How many abdominal regions are there?

Back 63

9

Front 64

Abdominal region where appendix is found?

Back 64

Hypogastric

Front 65

Which plane divides the body into left and right?

Back 65

Sagittal

Front 66

Define homeostasis:

Back 66

state of relative constancy

Front 67

What is NOT one of the basic components in a feedback control group?

Back 67

Transmitter