Final Exam Review

Question 1

Maintenance of the internal condition, regardless of external condition is?

Answer 1

Homeostasis

Question 2

The study of tissues?

Answer 2

Histology

Question 3

Homeostatic mechanisms employ what type of feedback?

Answer 3

Negative feedback, positive feedback is extremely rare.

Question 4

Which branch of biology studies how the structures of the various parts of the body perform their functions?

Answer 4

Physiology

Question 5

Which of the following represents 6.02 x 10^23 molecule?

Answer 5

A mole.

Question 6

Which term describes the position of the ear relative to the nose?

Answer 6

The ear is lateral to the nose.

Question 7

Which term describes the position of the knee relative to the ankle?

Answer 7

Proximal

Question 8

The abdominal cavity relative to the thoracic cavity?

Answer 8

Inferior

Question 9

Which statement is correct?

Answer 9

A solute is the substance that is being dissolved by the solvent, the resulting combination being a solution.

Question 10

Which type of section ?? do anterior and posterior views go by?

Answer 10

Frontal or coronal.

Question 11

Which body cavity contains the stomach?

Answer 11

Abdominal cavity.

Question 12

In a system under homeostatic control, which component monitors the variable?

Answer 12

Receptor

Question 13

Which organ is in the cranial cavity?

Answer 13

The brain

Question 14

The reason the body has skin and each cell a plasma membrane?

Answer 14

Maintaining boundaries

Question 15

The breakdown of ingested food?

Answer 15

Digestion

Question 16

Atoms of the same element, but different atomic weights are called?

Answer 16

Isotopes

Question 17

This system returns fluid that has leaked into tissues, back into circulation and it is involved in immunity.

Answer 17

Lymphatic system.

Question 18

Which system releases chemical messengers known as hormones?

Answer 18

Endocrine system

Question 19

Who is credited with putting a number to the number of molecules in a mole?

Answer 19

Amedeo Avogadro

Question 20

What is the mass of the proton?

Answer 20

1 amu

Question 21

Where in an atom are neutrons found?

Answer 21

In the nucleus.

Question 22

What is the electrical charge on an electron?

Answer 22

Negative

Question 23

What is the basic unit of life?

Answer 23

The cell

Question 24

What type of cell creates new bone?

Answer 24

Osteoblast

Question 25

A drug is administrated to your patient, the half-time for the substance is 4 hours. How long will it take for the levels of the drug to reach 12.5% of its initial ...??

Answer 25

12

Question 26

Which states are fluid?

Answer 26

Gas and liquid

Question 27

The body's internal distribution center which moves material around inside the body is called?

Answer 27

Cardiovascular System

Question 28

The sum total of all chemical reactions that occur in the body's cells is...

Answer 28

metabolism

Question 29

The ability to sense and react to stimuli is...

Answer 29

responsiveness

Question 30

Carbon has an atomic number of 6, what does this mean?

Answer 30

It has 6 protons.

Question 31

Atomic number equals what?

Answer 31

The number of protons in the nucleus.

Question 32

How much does a proton weigh?

Answer 32

1 amu

Question 33

Both carbons have an atomic mass of 12, but one isotope has a mass of 14, how many neutrons does the atom of 14 have?

Answer 33

14 - the 6 protons = 8 neutrons

Question 34

The atomic number of carbon is 6, how many electrons does carbon have?

Answer 34

6

Question 35

After 3 half-lives what percent of the total starting weight of an isotope would remain?

Answer 35

12 and a half.

Question 36

Which element accounts for most of the mass of the human body?

Answer 36

Oxygen from H2O.

Question 37

Which methods are medications cleared from the body?

Answer 37

They are metabolized by cells, filtered out by kidneys, or converted to other substances by the liver.

Question 38

Which element on this list has the strongest attraction for electrons?

Answer 38

Oxygen.

Question 39

Atoms of equal electronegativity will...

Answer 39

Share the electrons equally; covalent bond.

Question 40

Which subatomic particles are involved in chemical bonding?

Answer 40

Electrons.

Question 41

A fluid in which molecules are moving too fast to be attached to each other is known as?

Answer 41

A gas

Question 42

An atom or molecule that holds positive or negative charge is called...

Answer 42

An ion.

Question 43

Which end of a water molecule has a partial positive charge?

Answer 43

Oxygen side

Question 44

Which end of a water molecule has a partial positive charge?

Answer 44

Hydrogen side