B1.2.1 - Levels of Organisation Flashcards
What is the funciton of the following organ: intestines
Absorbs nutrients from food
What is the function of the respiratory system?
takes in oxygen and removes carbon dioxide (gas exchange)
Identify the organ.
List 3 examples of organ systems.
Circulatory system
Respiratory system
Reproductive system
Skeletal system
Urinary system
Nervous system
Digestive system
What is the funciton of the following organ: stomach
digests food
What is the function (job) of the circulatory system?
transports materials around the body in the blood.
Identify the organ.
Multicellular organisms have 5 levels of organisation.
List the levels in order of complexity (least complex first)
Cells
Tissues
Organs
Organ Systems
Organism
What is the funciton of the following organ: lungs
Take in oxygen and remove carbon dioxide (gas exchange)
Many nerve cells joined together make a….
Nerve tissue
Identify 3 plant organs
Leaf - absorbs light for photosynthesis
Stem - holds plant upright
Root - anchors plant into ground and takes in water/minerals.
List 3 examples of specialised cells.
Red Blood Cell
Nerve Cell
Ciliated epithelial cell
Root hair cell
White blood cell
Muscle cell
What is an organ?
An organ is a gorup of tissues that work together to perform a certain function.
E.g. the digestive system contains many organs to digest food.
What is a tissue?
A group of similar cells working together to perform a specific function (job).
e.g. muscle tissue - contracts to allow movement.
What is the funciton of the following organ: brain
controls the body
Identify the organ.
Identify the organ.
Identify the organ.
Identify the organ.
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