Download Unit 4 Revision Alphabet

Unit 4, Topic 5 and 6, A to Z definitions quiz Julian Thomas Seevic College
Definitions for words beginning with A or B
Word/phrase
1
An ecological factor that is part of the non-living
environment of an organism.
Abiotic
2
Alternative forms of the same gene
Alleles
3
A factor in a habitat due to living organisms
Biotic
4
Type of antibiotic that prevent the multiplication of active
bacteria
Bacteriostatic
5
Genetic change in a species due to deliberate human
influence
Artificial selection
6
Disease caused by the HIV virus
AIDS
7
Type of microbe that can be affected by antibiotics
Bacteria
8
Micro-organism rendered harmless for use in a vaccine
Attenuated
9
Chemical substance produced by micro-organisms that
can inhibit or kill other micro-organisms
Antibiotic
10
A substance that activates the body to produce
antibodies
Antigen
11
Substance that combines with a specific antigen
Antibody
12
Type of cell that produces antibodies
B lymphocytes
13
Type of antibiotic that kills bacteria
Bactericidal
14
Answer to 13 formed in this part of the body
Bone marrow
15
Part of earth inhabited by living things
Biosphere
16
Cell displaying peptides
Antigen-presenting
cell (APC)
17
The mass of living matter per unit area
Biomass
18
Virus that attacks bacteria
Bacteriophage
19
HIV can be transmitted through these
Bodily Fluids
20
Plant storage vacuole containing starch grains
Amylopast
A2 / SNAB / updated Nov 2009 from original by
Julian Thomas Seevic College
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Definition for words beginning with C, D, E or F
Word/phrase
1
Temperature deep inside the body
Core
2
Tissue breakdown due to enzymes and microbial action
Decomposition
3
Term used for tree ring analysis
Dendrochronology
4
Community formed at end of succession
Climax
5
Succession which is halted by e.g.grazing so answer to
4 is not achieved
Deflected
6
All the organisms in an ecosystem or habitat
Community
7
There is a ...................... between changes in
atmospheric carbon dioxide levels and rising
temperatures
Correlation
8
Allele fully expressed in the heterozygous condition
Dominant
9
Site of photosynthesis
Chloroplast
10
Predictions about future global warming are based on
Extrapolated data/
climate models
11
Increasing temperature can affect the activity of these
Enzymes
12
If two species have exactly the same niche, one will
eliminate the other due to this
Competition/
competitive
exclusion
13
A self sustaining system including both biotic and abiotic
components
Ecosystem
14
The flow of this through a system is measured in
KJ/m2/yr
Energy
15
Conditions under which an organism lives form its?
Environment
16
Changes in allele frequency in a population lead to this
Evolution
17
A sequence of three nucleotide bases on mRNA
Codon
18
Base pairing is always said to be this
Complementary
19
A process in bacteria that passes DNA from one cell to
another
Conjugation
20
Cycle in which CO2 and RuBP combine to give sugar
Calvin
A2 / SNAB / updated Nov 2009 from original by
Julian Thomas Seevic College
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Definition for words beginning with G, H, I, J, K or L
Word/phrase
1
MRSA is an example
Hospital acquired
infections
2
Bodies natural defence mechanism against pathogens
Immune system
3
Response mediated by histamine
Inflammation
4
Cells that stimulate B cells to divide and produce
antibodies
Helper T cells
5
Virus that causes AIDS
HIV
6
The way in which the body reacts to an invading
pathogen
Immune response
7
A sequence of bases on a DNA molecule coding for a
sequence of amino acids in a polypeptide chain
Gene
8
This must happen to ATP to release stored energy
Hydrolysis
9
The genetic constitution of an organism
Genotype
10
Cells that destroy pathogen infected cells
Killer T cells
11
Method used to separate DNA fragments of different
lengths
Gel electrophoresis
12
Populations usually need to be this if they are to evolve
into different species
Isolated
13
Between different species
Interspecfic
14
White blood cells that protect the body against specific
diseases
Lymphocytes
15
Protein produced by virus infected cells that inhibits viral
replication
Interferon
16
Net primary productivity + plant respiration =
Gross primary
productivity
17
The condition required for photosynthesis that is in
shortest supply and therefore limits rate
Limiting factor
18
Organism that has to ingest ready made organic
substances
Heterotroph
19
Stage in photosynthesis that produces NADPH and ATP
Light-dependent
reaction
20
Competition within a species
Intraspecific
A2 / SNAB / updated Nov 2009 from original by
Julian Thomas Seevic College
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Definition for words beginning with M, N, O, P, Q, R
Word/phrase
1
One method that the scientific community uses to
validate new evidence
Peer review
2
White blood cells that ingest and destroy bacteria
Neutrophil
3
The most abundant enzyme in the world
RUBISCO
4
Small circular section of DNA that can be transferred
between bacteria. Antibiotic resistance can be spread
by these
Plasmid
5
One method used to reduce atmospheric levels of
carbon dioxide
Reforestation
6
Succession that starts with newly formed habitats e.g a
volcanic island
Primary succession
7
A procedure to rapidly replicate identical copies of DNA
PCR
8
Enzyme found in HIV that allows RNA to be copied into
DNA
Reverse
transcriptase
9
A virus that has RNA as its genetic material
Retrovirus
10
Organisms that can make their own organic material;
another term for autotrophs
Producers
11
Splitting of water using the energy from light
Photolysis
12
Two populations are unable to breed together even if
they are sympatric (live in same area)
Reproductively
isolation
13
Method of DNA technology used to determine genetic
relationships
(DNA) Profiling
14
Stiffness of body due to lack of ATP after death
Rigor mortis
15
Frame used when assessing abundance of organisms
Quadrat
16
A disease causing organism
Pathogen
17
The first antibiotic identified
Penicillin
18
Major greenhouse gas
Methane
19
The functional status of an organism in its community
Niche
20
Addition of a phosphate group to a molecule when light
energy involved
Photophosphorylation
A2 / SNAB / updated Nov 2009 from original by
Julian Thomas Seevic College
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Definition for words beginning with S,T,U,V,W,X,Y,Z
Word/phrase
1
A group of organisms that can breed amongst
themselves and produce fertile offspring
Species
2
Contagious disease caused by the bacteria of the genus
Mycobacterium
Tuberculosis
3
Secrete oil to leave impressions of our fingerprints on
surfaces
Sebaceous glands
4
The position a species occupies in a food chain
Trophic level
5
The change in communities over time
Succession
6
Formation of new species
Speciation
7
Interconnected membrane sacs found in the chloroplast
Thylakoid
(membranes)
8
Utilising resources in a way that does not cause their
permanent depletion
Sustainable
10
Temperature of a cooling body follows this type of curve
after death
Sigmoid
11
The response to exposure to a second exposure to an
antigen; involves memory cells
Secondary immune
response
12
Part of body where a low pH protects against pathogens
Stomach (skin)
13
Rabies and polio are caused by these type of pathogens
that have a protein coat enclosing a nucleic acid strand
Virus
14
This exists because of mutation; it is the ‘raw material’
on which selection operates to produce new species
Variation
15
The mechanism by which choice in courtship leads to
the evolution of extravagant features like the Peacock’s
tail
Sexual selection
16
Fluid found in chloroplast that contains all enzymes
required for light-independent reactions of
photosynthesis
Stroma
17
Inherited blood disorder that gives protection against
malaria
Sickle cell or
thallasaemia
18
Copying of DNA into RNA
Transcription
19
Using mRNA to produce protein in a ribosome
Translation
A2 / SNAB / updated Nov 2009 from original by
Julian Thomas Seevic College
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