Weak bond formed when parially positively charged groups come close to partially negatively charged groups .
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Primary structure
The sequence of amino acids found in a protein molecule
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Tertiary structure
The overall 3 dimensional shape of a protein molecule.
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Secondary structure
The coiling or folding parts of a protein molecule due to the formation of hydrogen bonds formed as the protein is synthesised (alpha helix and beta pleated sheet)
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DNA
A polymer of nucleotide molecules that form the instructions for the synthesis of proteins found found within organisms
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RNA
Single stranded polynucleotide molecule that exists in three forms.
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Gene
A length of DNA that carries the code for the synthesis of one (or more) specific polypeptides
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Enzyme
A protein molecule that acts as a biological catalyst
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Balanced diet
Diet that contains all the nutrients required for health in the appropriate proportions
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Health
Complete mental,physical and social wellbeing
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Disease
The departure from full health
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Parasite
An organism that lives in or on another organism (its host),deriving nutrition from the host,benefiting at the expese of its host.
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Pathogen
An organism that causes disease
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Immune response
A response to an antigen,which involves the activation of lymphocytes
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Antigen
A foreign molecule (which may be protein or glycoprotein) that can provoke an immune reponse.
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Antibodies
Protein molecules released by the immune system in response to an antigen,which are capable of neutralising the effects of the antigen
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Species
A group of organisms whose members are similar to each other in shape (morphology), physiology, biochemistry and behaviour,and can interbreed to produce fertile offspring
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Habitat
The place where an organism or population lives.It includes the climatic,topographic and edaphic factorsas well as the plantsand animals that live there.
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Biodiversity
The number and variety of living things to be found in the world,in an ecosystem or in a habitat.
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Classification
The organisation of living organisms into groups according to their shared similarities
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Phylogeny
The evolutionary relationships between organisms
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Taxonomy
The study of the principles behind classification
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Variation
The differences between individuals
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Speciation
The formation of a new species
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Other cards in this set
Card 2
Front
The sequence of amino acids found in a protein molecule
Back
Primary structure
Card 3
Front
The overall 3 dimensional shape of a protein molecule.
Back
Card 4
Front
The coiling or folding parts of a protein molecule due to the formation of hydrogen bonds formed as the protein is synthesised (alpha helix and beta pleated sheet)
Back
Card 5
Front
A polymer of nucleotide molecules that form the instructions for the synthesis of proteins found found within organisms
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