Levels of organisation
Unjumble the key word:
Mango Sir
Organism
Unjumble the key word:
Iron Parties
Respiration
Unjumble the key word:
Mad Rag Hip
Diaphragm
Unjumble the key word:
Bear Worm No
Bone Marrow
Unjumble the key word:
Angel Mist
Ligaments
What is an organ?
It is made up of a group of different tissues that work together to perform a certain function.
What is gas exchange?
When you breathe and you take in oxygen and give out carbon dioxide.
What is inhalation?
Breathing in
What is bone marrow?
A soft tissue inside bones
What are joints?
Give an example of an organ system
circulatory, respiratory, reproductive
Give an example of a gas that is common in the air we breathe
Nitrogen, Oxygen or Carbon dioxide
Give an example of something that can reduce lung volume
Old age, asthma, smoking
Give an example of something that is produced by the bone marrow
red blood cells or white blood cells
Give an example of a muscle in the upper arm
biceps or triceps
How are the alveoli adapted for gas exchange?
They are on cell thick. They have a large surface area.
What happens in the bell-jar when exhaling?
ØRubber sheet pushed up
ØVolume inside jar decreases
ØPressure inside jar increases (pushing air out of balloon and jar)
ØBalloons deflate
What are the three types of joints? Give an example of each
ball and socket eg shoulder
hinge eg knee/elbow
fixed eg skull
What is the hierarchy of organisation in the body?
organism
organ system
organs
tissues
cells
Give the four reasons we need a skeleton
support
protection
movement
making blood cells