Unit 4, Topic 5 and 6, A to Z definitions quiz
1
Definition ALL WORDS begin with A or B
Kingdom consisting of multicellular eukaryotes with no cell
walls and heterotrophic nutrition
Word/phrase
Animalia
2
Alternative forms of the same gene
Alleles
3
The diversity of life in an ecosystem
Biodiversity
4
A factor in a habitat due to living organisms
Biotic
5
Type of antibiotic that prevent the multiplication of active
bacteria
Bacteriostatic
6
Genetic change in a species due to deliberate human influence
Artificial selection
7
Disease caused by the HIV virus
AIDS
8
Type of microbe that can be affected by antibiotics
Bacteria
9
Micro-organism rendered harmless for use in a vaccine
Attenuated
10
Chemical substance produced by micro-organisms that can
inhibit or kill other micro-organisms
Antibiotic
11
A substance that activates the body to produce antibodies
Antigen
12
Substance that combines with a specific antigen
Antibody
13
Type of cell that produces antibodies
B lymphocytes
14
Type of antibiotic that kills bacteria
Bactericidal
15
Answer to 13 formed in this part of the body
Bone marrow
16
Part of earth inhabited by living things
Biosphere
17
Cell displaying peptides on MHCs
18
The mass of living matter per unit area
Antigen-presenting
cell (APC)
Biomass
19
Virus that attacks bacteria
Bacteriophage
20
HIV can be transmitted through these
Bodily Fluids
1
1
Definition ALL WORDS begin with C, D, E or F
Temperature deep inside the body
Word/phrase
Core
2
Tissue breakdown due to enzymes and microbial action
Decomposition
3
Level of classification between phylum and order
Class
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
The inheritance of two pairs of contrasting characteristics
Dihybrid
8
Allele fully expressed in the heterozygous condition
Dominant
9
Site of photosynthesis
Chloroplast
10
Individual with a recessive allele that may be for a genetic
disease
Carrier
11
Insect very popular in genetics experiments
Drosophila
12
If two species have exactly the same niche, one will eliminate
the other due to this
13
A self sustaining system including both biotic and abiotic
components
Competition/competi
tive
exclusion
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 gene frequency in a population lead to this
Evolution
17
Classification group between genus and order
Family
18
Zoos use this to try to sustain populations of nearly extinct
species
Captive breeding
programmes
19
Description of a species likely to become extinct
Endangered
20
Cycle in which CO2 and RuBP combine to give sugar
Calvin
2
1
Definition ALL WORDS begin with G, H, I, J, K or L
Part of brain that detects blood temperature change
Word/phrase
Hypothalamus
2
Bodies natural defence mechanism against pathogens
Immune system
3
Response mediated by histamine
Inflammation
4
Stimulate B cells to divide and produce antibodies
Helper T cells
5
Virus that causes AIDS
HIV
6
Protection given by having a large proportion of a population
resistant to a disease so it cannot spread
Herd immunity
7
Length of DNA coding for a single polypeptide
Gene
8
Island group off coast of Ecuador, that helped Darwin
formulate ideas on evolution
Galapagos
9
The genetic constitution of an organism
Genotype
10
Cells that destroy pathogen infected cells
Killer T cells
11
The highest level of classifying living organisms
Kingdom
12
Populations usually need to be this if they are to evolve into
different species
Isolated
13
The way in which chromosomes are divided up in meiosis
Independent assortment
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 =
17
Accumulation of harmful recessive alleles in small
populations, leading to lower breeding success
Gross primary
productivity
Inbreeding depression
18
Organism that has to ingest ready made organic substances
Heterotroph
19
Stage in photosynthesis that produces NADPH and ATP
20
Competition within a species
Light-dependent
reaction
Intraspecific
3
1
Definition ALL WORDS begin with M, N, O, P, R
Modern synthesis of Darwin’s theory and modern
understanding of genetics
Word/phrase
Neo-Darwinism
2
White blood cells that ingest and destroy bacteria
Neutrophil
3
A doctor who examines bodies to establish cause of death
Pathologist
4
Small circular section of DNA that can be transferred between
bacteria. Antibiotic resistance can be spread by these
Plasmid
5
The enzyme lysozyme causes this to happen to bacteria
Osmotic lysis
6
Succession that starts with newly formed habitats e.g a
volcanic island
Primary succession
7
c
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)
Reproductive isolation
13
Appearance of an organism, due to expression of genes and
interaction with environment.
Phenotype
14
Stiffness of body due to lack of ATP after death
Rigor mortis
15
Proteins that carry peptides called antigens to the plasma
membrane
16
A disease causing organism
Major
histocompatibility
complexes (MHCs)
Pathogen
17
The first antibiotic that was used
Penicillin
18
Level of classification between class and family
Order
19
c
Niche
20
The process that returns a condition the set point/norm in
homeostasis
Negative feedback
4
Definition ALL WORDS begin with S,T,U,V,W,X,Y,Z
A group of organisms that can breed amongst themselves and
produce fertile offspring
Word/phrase
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
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
Study of the classification of organisms
Taxonomy
8
Utilising resources in a way that does not cause 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, mumps and polio are caused by these type of
pathogens
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
A hormone that raises metabolic rate and hence body
temperature
Thyroxine
17
Inherited blood disorder that gives protection against malaria
18
Copying of DNA into RNA
Sickle cell or
thallasaemia
Transcription
19
Using mRNA to produce protein in a ribosome
Translation
20
Global Biodiversity would include all animals from Aardvark
to z………….
Zorilla
1
5