Characteristic of Living Things Flashcards
MRS NERG
Movement Respiration Sensitivity Nutrition Excretion Reproduction Growth
Level of Organisation
Organelles-Cells-Tissues-Organs-Organ Systems-Organsim
Brain
Controls our thoughts, memory and speech, movements of arms and legs and the function of many organs in our body
Ear
Is to transmit sound to brain thought different parts of the ear.
Heart
Is and organ that pumps blood around the body. It plays a main role in the circulatory system.
Liver
Detoxifies chemicals and metabolises drugs. Breaks down fat.
Kidney
It filters waste products from the blood. It also produces urine that is sent to the bladder.
Eye
The eye has many parts that work together to produce clear vision
Lungs
It’s keep us alive. Oxygen enters lungs and goes through blood vessels on to all parts of our body.
Stomach
Secretes acid and enzymes that digest food.
Large intestine
Is to absorb after from remaining indigestible food.
Small intestine
Where 90% of digestion and absorbtion of food and nutrients occur.
Gallbladder
Small hollow organ where bile is stored and concentrated before it is released into the small intestine.
Pancreas
Converting the food we eat into fuel for the body’s cells. It also helps in digestion and regulates body sugars.
Oesophagus
Long, thin, and muscular tube that connects the pharynx (throat) to the stomach.
Organs in a plant
Flower, leaf, stem, root
What do plants absorb through roots
Nutrients e.g. nitrate, water, magnesium which makes chlorophyll.
Male/female organ in plant
Male-anther, filament
Female-stigma, style, ovary
Bones in human body
Cranium (skull), Mandible (jaw bone), Rib cage, Radius, Ulna, Femur, Tibia, Fibula, Knee cap (patella), coccyx, pelvis, vertebral column (spine/backbone), sternum (breast bone), humorous, scapula (shoulder blade).
Ball and socket joint
The ball at one end of the bone fits into a socket in another. This allows circular movement, all around
Rist, shoulder, hip, pelvis
Hinge joint
The bones can only move in one direction, like a door on hinges
Elbow, knee, ankle
bone is made from
Calcium carbonate, a hard brittle substance
A protein called collagen that is soft and flexible
Water
What happen if you put bone in acid
It becomes, flexible, smooth doesn’t break easily
When bone has been put in acid what substance has been removed.
Calcium carbonate has been removed by the acid because the bone has become soft and flexible so lots of collagen has been added instead.
Ways proving that bone contains water
Use cobalt chloride paper on inside of bone it should turn blue to pink
Heat bone and then collect water
Using copper sulphate anhydrous- turns white salt to blue in the presence of water
Muscles
Contract
Tendons
Do not bend, attach muscle to bone
Ligaments
Stretch
Adaption
The process whereby a species evolves characteristics that enable it to survive in a particular habitat
Adaption allows species to live successfully in their habitats
Species living in different habitats need different adaptions
Ways of adaption
Movement Communication Body shape Regulating body temp Diurnal or nocturnal Camouflage Escaping predation Effective hunting
