Biology Flashcards
Habitat
The place where an organism(plant or animal) lives.
Population
a group of organisms of the same species
Community
all the populations in an ecosystem
Ecosystem
the interaction between the communities and their habitats
Producers
green plant (make its own food)
Consume
animal (eats ‘ready made’ food)
Herbivore
animal that eats only plants
Omnivore
animal that eats plants and animals
Carnivore
animal that eats only other animals
Food chain
relationship where one organism feed on the previous one and in turn provides food for the next one in a series
Food web
interconnected food chains
Biotic
living factors that can influence abundance of plants and animals
Numbers of predators or prey/food, disease organisms
examples of biotic factors
Abiotic
non-living factors that can influence abundance of plants and animals
Soil pH or moisture, light intensity
examples of abiotic factors
Quadrat
used to sample plants
Pitfall trap
used to sample animals that live on surface of soil
Tullgren funnel
used to measure animals that live in soil
Sweep net
used to sample animals that live in water
Biomes
very large ecological areas on the earth’s surface, animals and plants adapting to their environment, often defined by rainfall and temperature
Adaptation
a feature of a plant or animal that allows it to survive in its habitat
Controls cell activities
Nucleus
Where most chemical reactions take place
Cytoplasm
Controls what enters and leaves the cell
Cell membrane
Site of photosynthesis
Chloroplast
The process which releases energy in cells is called
Respiration
Respiration occurs inside
Mitochondria
Proteins are made inside
Ribosomes
Ribosomes are cell organelles in which ___ are synthesised
Proteins
Plant cells (and cells of algae) also have a ___ which surrounds the cell
Cell wall
The cell wall is made of
Cellulose
The cell wall
Strengthens the cell
Plant cells often have ___ which absorb light energy.
Chloroplasts
Plant cells use the light energy to make food by
Photosynthesis
Plant cells often have a
Permanent vacuole
The vacuole contains
Cell sap
A bacterial cell contains a ____ (to strengthen the cell)
Cell wall
A bacterial cell contains a ____ (to allow substances to pass into and out of the cell)
Cell membrane
A bacterial cell contains ___ (in which the chemical reactions happen)
Cytoplasm
What don’t bacterial cells have
Do not contain a nucleus