Science Revision Key Words Photosynthesis And Ecosysystems Eg Interaction Between Species Flashcards
Organisms that have a lot of characteristics in common and can mate to produce fertile offspring.
Species
The way organisms depend on each other to survive, grow, and reproduce.
Interdependence
Moving to another area for part of the year.
Migrate
Differences in characteristics.
Variation
Type of variation where a characteristic can only result in certain values.
Discontinuous
Type of variation where a characteristic can take any value within a range.
Continuous
‘Fighting’ with other organisms for resources.
Competition
Animal that eats other animals.
Predator
Animal that is eaten by another animal.
Prey
Characteristic that enables an organism to survive and be successful in its environment.
Adaptation
species of plants and animals that have only a small population in the world are …
Endangered
a store of genetic samples from different species (4,4)
Genebank
Long strand of DNA that contains many genes
Chromosome
section of DNA that holds the information to produce a characteristic
Gene
Development of a species over time
Evolution
chemical that contains all the information needed to make an organism
DNA
Part of the cell where the DNA is stored
Nucleus
The remains of plants and animals that have turned to stone
Fossils
the process by which organisms evolve is called natural…
Selection
when no more individuals of a species are left anywhere in the world the species is …
Extinct
Contains 23 chromosomes
Sperm cell
Contains 46 chromosomes
Embryonic cell
What do plants compete for
Light and minerals
What do animals compete for
Mates and food
What do both animals and plants compete for
Water and space
A particular place or role that an organism has in an ecosystem
Niche
The interaction between plants, animals and their habitat in a particular location
Ecosystem
The area in which an organism lives
Habitat
The collection of different types of organisms present in an ecosystem
Community
What are veins in a leaf needed for
Transport of water and sugar
What is wax in a leaf
On top surface of leaf, reduces water loss
What are chloroplasts
Contains the green pigment (colour) called chlorophyll
What are stomata
Holes in lower surface of leaf
What is photosynthesis
The process plants use to make their own food, glucose.
In photosynthesis, carbon dioxide and water react together to make glucose and oxygen.
What is anaerobic respiration
Chemical reaction that takes place without oxygen.
Glucose is converted into lactic acid and energy is released.
What is chemosynthesis
Reaction performed by bacteria, using energy transferred from chemical reactions to produce glucose.
What is aerobic respiration
Chemical reaction where glucose reacts with oxygen to release energy, carbon dioxide, and water.
What is chlorophyll
Chlorophyll is a pigment that gives plants their green color, and it helps plants create their own food through photosynthesis. It is a key component in the process of photosynthesis, which sustains plant life and produces oxygen for the entire planet.
