Science Test 2

Front 1

Lungs

Back 1

The lungs are the primary organs of respiration

Front 2

Diaphragm

Back 2

the dome-shaped sheet of muscle that separates the chest from the abdomen.

Front 3

Alveoli

Back 3

any of the many tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.

Front 4

Trachea

Back 4

a large membranous tube reinforced by rings of cartilage, extending from the larynx to the bronchial tubes and conveying air to and from the lungs; the windpipe.

Front 5

Urinary system

Back 5

Urinary System is a group of organs in the body concerned with filtering out excess fluid and other substances from the bloodstream.

Front 6

Bladder

Back 6

The bladder is a round, bag-like organ that stores urine.

Front 7

Kidneys

Back 7

kidneys are bean-shaped organs, each about the size of your fist. They are located near the middle of your back, just below the rib cage.

Front 8

Respiratory system

Back 8

series of organs responsible for taking in oxygen and expelling carbon dioxide.

Front 9

Integumentary

Back 9

the organ system that protects the body from various kinds of damage, such as loss of water or abrasion from outside.

Front 10

Function

Back 10

work or operate in a proper or particular way.

Front 11

Structure

Back 11

between the parts or elements of something complex

Front 12

Photosynthesis

Back 12

process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water.

Front 13

DNA

Back 13

material present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.

Front 14

Genetic

Back 14

the genetic properties or features of an organism

Front 15

White blood cells

Back 15

White blood cells help fight infections by attacking bacteria, viruses, and germs that invade the body.

Front 16

Red blood cells

Back 16

are the most common type of blood cell and the vertebrate

Front 17

Artery

Back 17

any of the muscular-walled tubes forming part of the circulation system by which blood is conveyed from the heart to all parts of the body.

Front 18

Vein

Back 18

any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart

Front 19

Capillary

Back 19

a tube that has an internal diameter of hairlike thinness.

Front 20

Heart rate

Back 20

The number of heartbeats per unit of time, usually per minute.

Front 21

Perspires

Back 21

give out sweat through the pores of the skin as the result of heat, physical exertion, or stress.

Front 22

Complex

Back 22

consisting of many different and connected parts.

Front 23

Responses

Back 23

a reaction to something.

Front 24

Control

Back 24

the power to influence or direct

Front 25

Cellular function

Back 25

is the basic structural, functional, and biological unit of all known living organisms.

Front 26

Nutrients

Back 26

a substance that provides nourishment essential for growth and the maintenance of life.

Front 27

Organ

Back 27

a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans.

Front 28

Organ system

Back 28

The 11 organ systems of the body are the integumentary, muscular, skeletal, nervous, circulatory, lymphatic, respiratory, endocrine, urinary/excretory, reproductive and digestive.

Front 29

Cell wall

Back 29

rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria.

Front 30

Tissue

Back 30

consisting of specialized cells and their products.

Front 31

Element

Back 31

broken down into simpler substances and are primary constituents of matter.

Front 32

Compare

Back 32

estimate, measure, or note the similarity or dissimilarity between.

Front 33

Natural gas

Back 33

flammable gas, consisting largely of methane and other hydrocarbons, occurring naturally underground

Front 34

Chemical change

Back 34

Chemical change is any change that results in the formation of new chemical substances.

Front 35

Carbon

Back 35

Carbon is a chemical element with symbol C and atomic number 6.

Front 36

Compound

Back 36

More elements in one

Front 37

Cell theory

Back 37

describes the properties of cells. These cells are the basic unit of structure in all organisms and also the basic unit of reproduction.

Front 38

Cell membrane

Back 38

the semipermeable membrane surrounding the cytoplasm of a cell.

Front 39

Chemical Formula

Back 39

a set of chemical symbols showing the elements present in a compound and their relative proportions

Front 40

Stomach

Back 40

the internal organ in which the major part of the digestion of food occurs

Front 41

Pancreas

Back 41

a glandular organ in the digestive system and endocrine system of vertebrates.

Front 42

Molecule

Back 42

a group of atoms bonded together

Front 43

Vacuole

Back 43

a space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid.

Front 44

Mixture

Back 44

a substance made by mixing other substances together.

Front 45

Generate

Back 45

cause (something, especially an emotion or situation) to arise or come about.