Studied by 5 people
Movement
An action by an organism causing a change in position or place.
Respiration
Chemical reactions in cells that break down nutrient molecules and release energy for metabolism.
Sensitivity
Ability to detect and respond to changes in the surrounding environment.
Growth
A permanent increase in size.
Reproduction
The processes that make more of the same kind of organism.
Excretion
The removal of waste products of metabolism from the organism.
Nutrition
The taking in of materials for energy, growth, and development.
Word formula for respiration
glucose + oxygen —> water + carbon dioxide
Chemical formula for respiration
C6H12O6 + 6O2→6CO2+6H2O + energy
Classification
Arranging organisms into groups.
What are the Five Kingdoms?
Animals, plants, fungi, prokaryotes, protoctista.
Name the groups organisms are split into.
Kingdom, Phylum, Class, Order, Family, Genus, species.
Binomial system
An internationally agreed system in which the scientific name of an organism is made up of two parts showing the genus and species.
Species
A group of organisms that can reproduce to produce fertile offspring.
Features of animals
Cells have a nucleus.
No cell wall.
Multicellular.
Get their food from another source (heterotroph).
e.g. Lion
Features of plants
Cells have a nucleus.
Cell wall (made from cellulose).
Multicellular.
Makes its own food (autotroph).
e.g. Geranium
Features of fungi
Cells have a nucleus.
Cell wall (made from chitin).
Unicellular (yeasts) or multicellular (mushrooms and moulds).
Features of protoctista
Cells have a nucleus.
No cell wall.
Unicellular or simple multicellular.
e.g. Amoeba.
Features of prokaryotes
Cells have no nucleus.
Cell wall (made of murein).
Unicellular.
e.g. Salmonella.
All of the vertebrate groups
Mammals, amphibians, birds, reptiles, and fish.
Features of fish
Streamlined
Fins
Moist scales
Live entire life in water
Lay jelly eggs with no hard cover in water.
Cold-blooded.
Features of amphibians
Smooth moist skin
External eardrums.
Lays jelly eggs in water.
Young spend life in water with gills then develop lungs and lose the gills.
Webbed feet.
Absorb oxygen through skin + lungs.
Cold-blooded.
Features of reptiles
Internal ears.
Rough scaly skin.
Lays eggs with a rubbery cover on land.
Cold-blooded
Features of birds
Warm-blooded
Wings
Feathers
Beak
Scaly legs
Lays eggs with a hard cover on land.
Features of mammals
Give birth to live young.
Have mammary glands.
Young feed on milk from mother.
Fur.
External ears.
Warm-blooded.
What are the four features which all arthropod classes share?
Jointed legs, segmented body, bilateral symmetry, and an exoskeleton.
Features of insects
3 pairs of legs, 3 body segments, most have 2 pairs of wings, 1 pair of antennae, and compound eyes.
Features of arachnids
4 pairs of legs, 2 body segments, don’t have antennae, simple eyes, and don’t have wings.
Features of myriapods
Many pairs of legs, many body segments, don’t have antennae, simple eyes, and don’t have wings.
Difference between centipedes and millipedes?
Millipedes have 2 pairs of legs per body segment while centipedes have 1 pair per body segment.
Features of crustanceans
5-10 pairs of legs, 2 body segments, 2 pairs of antennae, compound eye, and don’t have wings.
Features of ferns
Reproduce using spore produced under the fronds (leaves), develops an underground stem (rhizome).
What are the two types of flowering plants (angiosperms)?
Monocots and dicots.
Difference between seeds in monocots and dicots
Monocot seeds store one food store while dicot seeds store two food stores.
Difference between leaves in monocots and dicots
Monocot seeds produce one leaf while dicot seeds produce two.
Difference between leaf veins in monocots and dicots
In monocots the leaves are long and narrow with parallel veins while dicots have broad leaves which branch like veins.
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