QUESTION 1 The function of serous fluid is to reduce frictio

QUESTION 1

The function of serous fluid is to reduce friction between tissues.

True

False

4 points   

QUESTION 2

The cheek is which region?

Occipital

Buccal

Oral

Mental

4 points   

QUESTION 3

The pH of the blood is slightly basic. Which of the following describes this pH?

6.4

12.6

4.7

7.4

4 points   

QUESTION 4

The ability of water molecules to cling to each other is _________, while the ability to cling to other surfaces is ___________.

cohesion; adhesion

dissolving; vaporization

adhesion; cohesion

cohesion; dissolving

4 points   

QUESTION 5

The most important thing about protein function is the three-dimensional shape of the protein.

True

False

4 points   

QUESTION 6

Low levels of radiation are commonly used to

sterilize dental products.

destroy cancer cells.

produce images of body parts.

All apply.

4 points   

QUESTION 7

If a protein has more than one polypeptide arranged together, this is the ____ structure of a protein.

primary

secondary

tertiary

quaternary

4 points   

QUESTION 8

If the heart is cut to give the atria and the ventricles, it was cut on a

transverse plane.

midsagittal plane.

frontal plane.

longitudinal section.

4 points   

QUESTION 9

In the DNA molecule, the complementary base pair of adenine is always

uracil.

cytosine.

thymine.

guanine.

4 points   

QUESTION 10

Very small protein molecules that seem to be disease causing agents are called

viruses.

bacteria.

flukes.

prions.

4 points   

QUESTION 11

A weak base will accept many hydrogen ions.

True

False

4 points   

QUESTION 12

Hydrochloric acid is considered a strong acid because it

produces very few hydrogen ions in water.

produces many hydroxide ions in water.

produces many hydrogen ions in water.

dissociates very little in water.

4 points   

QUESTION 13

Which type of cut or section will give right and left portions?

Sagittal

Transverse

Frontal

Coronal

4 points   

QUESTION 14

The foot is proximal to the knee.

True

False

4 points   

QUESTION 15

Which of the following is the main component of fiber in our diet?

Glycogen

Protein

Cellulose

Starch

4 points   

QUESTION 16

What is used in a sonogram to create an image?

Sound waves

Electrons

Gamma rays

X-rays

4 points   

QUESTION 17

The subunit molecules for proteins are

atoms.

amino acids.

enzymes.

polymers.

4 points   

QUESTION 18

Which of the following types of reactions involves the production of a larger product by combining smaller reactants?

Degradation

Replacement

Synthesis

Decomposition

4 points   

QUESTION 19

Over 90% of the body is composed of four elements: carbon, nitrogen, chlorine, and hydrogen.

True

False

4 points   

QUESTION 20

Which of the following occurs as a result of positive feedback and assists in the maintenance of homeostasis?

Body temperature regulation

Blood pH regulation

Blood clot formation

Blood cell production

4 points   

QUESTION 21

The atomic mass of a proton is

0 atomic mass units.

2 atomic mass units.

1 atomic mass units.

-1 atomic mass units.

4 points   

QUESTION 22

A bond created from the attraction between positively and negatively charged ions is a(n) ______ bond.

covalent

hydrogen

ionic

metallic

4 points   

QUESTION 23

All radioactive isotopes are very dangerous and have no practical, safe uses.

True

False

4 points   

QUESTION 24

The armpit is which region?

Acromial

Pectoral

Mammary

Axillary

4 points   

QUESTION 25

Fats are usually liquid at room temperature and oils are solids.

True

False

		True
		False

Solution

1. FALSE - Serous fluid is secreted by the serous glands. It fills in between body cavities, is rich in nutrients and plays a role in digestion, excretion and respiration.

2. BUCCAL
The Buccal cavity or Buccal region is the part of the body made of the mouth and cheeks. \'Oral\' and \'Mental\' are not anatomical terms. Occipital regions is a part of the Brain.

3. pH 7.4
The blood pH ranges between 7.2 - 7.4, which falls under the category of mildly basic. Anything lower than 7 is acidic in nature. Any pH greater than 12 is highly basic, which would destroy body tissues.

4. The ability of water molecules to cling to each other is COHESION, while the ability to cling to other surfaces is ADHESION.