structure and function of body systems

Question 1

multicellular organism

Answer 1

an organism made up of multiple cells

Question 2

tissue

Answer 2

a group of similar cells working together to perform a function.

Question 3

organ

Answer 3

a group of tissues working together to perform a function

Question 4

organ system

Answer 4

a group of organs working together to perform a function.

Question 5

gas exchange

Answer 5

the transfer of gases between an organism and its environment

Question 6

lungs

Answer 6

the organ in which gas exchange takes place

Question 7

ribcage

Answer 7

the bones that protect the lungs

Question 8

respiratory system

Answer 8

the organs involved in gas exchange

Question 9

trachea

Answer 9

a tube that helps air get to the lungs

Question 10

alveolus

Answer 10

a structure inside the lungs where gas exchange takes place with the blood

Question 11

inhale

Answer 11

breathing in, to take in oxygen

Question 12

respiration

Answer 12

a chemical reaction where food and oxygen are converted into energy, water and carbon dioxide

Question 13

exhale

Answer 13

breathing out, to remove carbon dioxide

Question 14

condense

Answer 14

the change of state from gas to liquid

Question 15

contract

Answer 15

get smaller

Question 16

diaphragm

Answer 16

the sheet of muscle used in breathing

Question 17

lung volume

Answer 17

the amount of oxygen that can be taken in at one time

Question 18

bone

Answer 18

a tissue that forms a hard structure, used to protect organs and or movement

Question 19

skeleton

Answer 19

all of the bones together in an organism

Question 20

support

Answer 20

the support in an organism that keeps it together

Question 21

protect

Answer 21

things that are protected in an organism

Question 22

bone marrow

Answer 22

is inside larger bones, produce red blood cells

Question 23

biomechanics

Answer 23

study of the mechanical laws relating to the movement or structure of living organisms.

Question 24

joint

Answer 24

a part of the skeleton where two bones join together

Question 25

cartilage

Answer 25

the strong, smooth tissue that covers the end of bones to prevent them rubbing together

Question 26

ligament

Answer 26

joins two bones together

Question 27

newtons

Answer 27

a unit of force

Question 28

tendon

Answer 28

joins a muscle to a bone

Question 29

antagonistic muscles

Answer 29

a pair of muscles that work together to control the movement at a joint - as one muscle contracts, the other relaxes