Control & Coordination

The following topic has been broken down into 6 components. Click on the part you wish to learn about in more detail below.

Dissection videos

Eye dissection (watch at own discretion… or in class)

Cell – Smallest unit of living thing. Can be specialised to do different jobs e.g. Brain, skin, heart, liver, eye

Nucleus – The brain of the cell which stores the DNA code

Cell wall – Plant cells use this for extra support outside their cell

Cell membrane – All cells use this as a skin to keep their insides, inside…

Tissue – A group of cells working together e.g. skin, heart, lung, muscle

Unicellular – One cell living and performing all functions to remain alive

Multicellular – Many cells living and performing functions to remain alive

Nervous system – How your brain communicates with the body

Neurone – Stored in the brain, how thoughts and actions are communicated

Receptor – Parts of the brain cells that react to hormones

Sensory Neurone – these connect to the sensors such as sight and hearing

Motor Neurone – These connect to muscle groups to coordinate movement

Reflex action – Skips the brain and communicates with the spine to protect the part of the body in danger

Endocrine – releases/transports hormones in the body. Hunger, Mood, Reproduction etc.

Hormones – alert the body to stimulus to maintain homeostasis

Gland – Where hormones are stored in the body. They release into the endocrine system

Adrenaline – used by the body during stressful or exciting moments to heighten the sensors

Homeostasis – Your body maintaining a regulated level of energy to maintain life

Disease – a disturbance to homeostasis which can impact on living things

Infectious – can be spread by air, water, blood, surfaces easily

Non-infectious – needs to be spread in direct contact with the blood

Vaccine – stimulates the production of anti-bodies in the body to provide immunity

Immunity – when the body knows how to fight an invader to prevent illness

Antibiotics – Used to kill off bacterial infections, NOT viral infection’s