How can we help?

You can also find more resources in our Help Center.

Study sets matching "level biology ncea"

Study sets
Classes
Users

Study sets matching "level biology ncea"

63 terms
NCEA Level 3 Biology - Speciation
Evolution
Species and populations
Deme
Cline
The permanent genetic change (change in allele frequencies) i…
A group of individuals that normally interbreed in nature to…
A deme is a local population that has no or limited gene flow…
When a species has an extended geographical range, variation…
Evolution
The permanent genetic change (change in allele frequencies) i…
Species and populations
A group of individuals that normally interbreed in nature to…
19 terms
NCEA Level 1 Biology
DNA
Chromosome
Gene
Allele
A self-replicating molecule made of repeating units called nu…
A threadlike structure of the nucleic acids and protein found…
A section of DNA containing the genetic code for a trait.
An alternate form of a gene. They can be dominant or recessive.
DNA
A self-replicating molecule made of repeating units called nu…
Chromosome
A threadlike structure of the nucleic acids and protein found…
88 terms
NCEA Level 2 Biology - Cells
Enzymes
Structure of enzymes
How enzymes work
Lock and key mechanism
Biological catalysts made up of proteins, which means they sp…
An enzyme acts on a molecule called the substrate and binds a…
Enzymes increase the rate of reaction by lowering the activat…
The fit between the substrate and the active site of the enzy…
Enzymes
Biological catalysts made up of proteins, which means they sp…
Structure of enzymes
An enzyme acts on a molecule called the substrate and binds a…
77 terms
NCEA Level 2 Biology Genetics
Adenine
Alleles
Cytosine
DNA
Is a base found in DNA and RNA. In DNA its partner is Thymine…
Two alternative forms of a gene e.g Tall vs Short
Is a base found in DNA and RNA. Cytosine pairs with Guanine i…
Deoxyribonucleic acid carries the genetic code for the proper…
Adenine
Is a base found in DNA and RNA. In DNA its partner is Thymine…
Alleles
Two alternative forms of a gene e.g Tall vs Short
42 terms
NCEA Level 2 Biology Ecology
Abiotic
Adaptation
Age structure
Biotic
nonliving, physical features of the environment, including ai…
inherited characteristic that increases an organism's chance…
This is the percentage of the population in each age class.... T…
Pertaining to life; environmental factors created by living o…
Abiotic
nonliving, physical features of the environment, including ai…
Adaptation
inherited characteristic that increases an organism's chance…
88 terms
NCEA Level 2 Biology Cells
Enzymes
Structure of enzymes
How enzymes work
Lock and key mechanism
Biological catalysts made up of proteins, which means they sp…
An enzyme acts on a molecule called the substrate and binds a…
Enzymes increase the rate of reaction by lowering the activat…
The fit between the substrate and the active site of the enzy…
Enzymes
Biological catalysts made up of proteins, which means they sp…
Structure of enzymes
An enzyme acts on a molecule called the substrate and binds a…
71 terms
Ncea Biology Level 3 Evolution
population
gene pool
allele frequency
selection
a group of organisms of the same species occupying a given ar…
all the genes in a population. genes are added by reproductio…
the proportion of an allele in a gene pool compared with all…
a process that results in an allele having a different probab…
population
a group of organisms of the same species occupying a given ar…
gene pool
all the genes in a population. genes are added by reproductio…
29 terms
NCEA Level 2 Biology Cells
Cell
Isotonic
Hypertonic/concentrated solution
Mitochondria
The building block of living things
When two solutions are of an equal concentration
When a solution contains a large number of solute particles p…
The cell organelle where the process of respiration occurs
Cell
The building block of living things
Isotonic
When two solutions are of an equal concentration
23 terms
NCEA Level 1 Biology
DNA
Chromosome
Gene
Allele
Deoxyribonucleic acid, the hereditary material that contains…
Threadlike strucure of DNA that contains genes.... *Nucleotides…
A lenght of DNA that codes for a particular trait.
An alternative from of a gene.
DNA
Deoxyribonucleic acid, the hereditary material that contains…
Chromosome
Threadlike strucure of DNA that contains genes.... *Nucleotides…
29 terms
NCEA Level 2 Biology Cells
Cell
Isotonic
Hypertonic/concentrated solution
Mitochondria
The building block of living things
When two solutions are of an equal concentration
When a solution contains a large number of solute particles p…
The cell organelle where the process of respiration occurs
Cell
The building block of living things
Isotonic
When two solutions are of an equal concentration
25 terms
Biology NCEA Level One
Mutation
Cell Division
Genotype
Allele
A change to the sequence of nucleotides on the DNA, creating…
Reproduction of cells where they make copies of themselves, e…
The combination of alleles held by an individual
Different versions of a gene for a trait (e.g eye color). May…
Mutation
A change to the sequence of nucleotides on the DNA, creating…
Cell Division
Reproduction of cells where they make copies of themselves, e…
36 terms
NCEA Level 1 - Biology
Gene
Allele
Genotype
Phenotype
A section of DNA that codes for a particular trait
The variations of a gene
The combination of alleles for a trait
The physical expression of a gene
Gene
A section of DNA that codes for a particular trait
Allele
The variations of a gene
Biology - NCEA Level 2
State the words for each letter.
Movement
Respiration
Sensitivity
Mrs. C. Gren
M
R
S
State the words for each letter.
Mrs. C. Gren
Movement
M
67 terms
Biology NCEA Level 1
Aleurone (2)
Endosperm (2)
Cotyledon (2)
Monocotyledon
- Protein stored as granules... - Releases amylase to convert st…
- Food Stores rich in starch... - Supplies the seedling with glu…
- Food Stores rich in starch... - Supplies the seedling with glu…
- Only has one cotyledon and a separate endosperm
Aleurone (2)
- Protein stored as granules... - Releases amylase to convert st…
Endosperm (2)
- Food Stores rich in starch... - Supplies the seedling with glu…
54 terms
Biology NCEA-Level 3
Abscission
Aggression
Allelopathy
Ambivalence
Leaf or fruit fall because of death of cells in the abscissio…
Threatening behaviour usually associated with competition. It…
Chemical inhibition of one species by another. Basically the…
When a gesture contains elements of dominance and submission.
Abscission
Leaf or fruit fall because of death of cells in the abscissio…
Aggression
Threatening behaviour usually associated with competition. It…
47 terms
Biology NCEA Level 2
Mitosis
Meiosis
Independent Assortment
Mutation
Cell division in body cells
Cell division in sex cell
Chromosomes distributed in different combinations each time a…
A random, permanent change in the DNA base sequence
Mitosis
Cell division in body cells
Meiosis
Cell division in sex cell
44 terms
Biology NCEA-Level 3
Allelopathy
Ambivalence
Antibiosis
Auxin
Chemical inhibition of one species by another. Basically the…
When a gesture contains elements of dominance and submission.
An interspecific relationship where one organism is harmed, b…
A plant hormone that lengthens cells.
Allelopathy
Chemical inhibition of one species by another. Basically the…
Ambivalence
When a gesture contains elements of dominance and submission.
46 terms
NCEA Level 2 Biology - Genetic Variation and Change
Gene
Alleles
locus
Meiosis
A section of DNA that codes for a particular trait or charact…
Alternative forms of a gene
position on a chromosome occupied by a gene
A type of cell division that occurs in the ovaries and testes…
Gene
A section of DNA that codes for a particular trait or charact…
Alleles
Alternative forms of a gene
8 terms
NCEA level 1 biology
DNA structure
Chromosomes
Homologous pairs
Gene
The structure of DNA is like a twisted ladder - known as a Do…
Chromosomes are organised structures made of DNA. DNA is coil…
Where two chromosomes are the same - same order of genes and…
A section of DNA, which codes for a particular characteristic…
DNA structure
The structure of DNA is like a twisted ladder - known as a Do…
Chromosomes
Chromosomes are organised structures made of DNA. DNA is coil…
11 terms
Level One NCEA - Biology
DNA is...
DNA is made up of...
Chromosome
Gene
The genetic code in the nucleus (deoxyribose nucleic acid)
Bases; A, C, G, T
A strand of coiled DNA
Is a section of DNA that codes for a trait
DNA is...
The genetic code in the nucleus (deoxyribose nucleic acid)
DNA is made up of...
Bases; A, C, G, T
66 terms
NCEA Level 3 Biology - Speciation
Evolution
Species and populations
Deme
Cline
The permanent genetic change (change in allele frequencies) i…
A group of individuals that normally interbreed in nature to…
A deme is a local population that has no or limited gene flow…
When a species has an extended geographical range, variation…
Evolution
The permanent genetic change (change in allele frequencies) i…
Species and populations
A group of individuals that normally interbreed in nature to…
23 terms
NCEA Level 1 Biology
DNA
Chromosome
Gene
Allele
Deoxyribonucleic acid, the hereditary material that contains…
Threadlike strucure of DNA that contains genes.... *Nucleotides…
A lenght of DNA that codes for a particular trait.
An alternative from of a gene.
DNA
Deoxyribonucleic acid, the hereditary material that contains…
Chromosome
Threadlike strucure of DNA that contains genes.... *Nucleotides…
71 terms
NCEA Level 2 Biology - Cells
Enzymes
Structure of enzymes
How enzymes work
Lock and key mechanism
Proteins that act as Biological catalysts made up of proteins…
An enzyme acts on a molecule called the substrate and binds a…
Enzymes increase the rate of reaction by lowering the activat…
This is where the substrate attatches to the enzyme at the ac…
Enzymes
Proteins that act as Biological catalysts made up of proteins…
Structure of enzymes
An enzyme acts on a molecule called the substrate and binds a…
72 terms
NCEA Level 2 Cell Biology
activation energy
active site
active transport
Adenine
minimum amount of energy required to trigger a chemical react…
the site on an enzyme that attaches to a substrate
movement of molecules through protein channels in the membran…
nitrogen base found in DNA and RNA; pairs with thymine in DNA…
activation energy
minimum amount of energy required to trigger a chemical react…
active site
the site on an enzyme that attaches to a substrate
90 terms
NCEA level 1 biology microbes
Absorb
Active immunity
Adapted
Aerobic respiration
movement of materials through a membrane
when the body's immune response initiated by an invading fore…
a feature (behavioural, structural or physiological) that ena…
Breaking down glucose with oxygen present, producing carbon d…
Absorb
movement of materials through a membrane
Active immunity
when the body's immune response initiated by an invading fore…
53 terms
NCEA Level 3 Biology - Speciation
Evolution
Species and populations
Deme
Cline
The permanent genetic change (change in allele frequencies) i…
A group of individuals that normally interbreed in nature to…
A deme is a local population that has no or limited gene flow…
When a species has an extended geographical range, variation…
Evolution
The permanent genetic change (change in allele frequencies) i…
Species and populations
A group of individuals that normally interbreed in nature to…
50 terms
NCEA level 3 Biology: evolution
population
gene pool
allele frequency
selection
a group of organisms of the same species occupying a given ar…
all the genes in a population. genes are added by reproductio…
the proportion of an allele in a gene pool compared with all…
a process that results in an allele having a different probab…
population
a group of organisms of the same species occupying a given ar…
gene pool
all the genes in a population. genes are added by reproductio…
88 terms
NCEA Level 2 Biology - Cells BT
Enzymes
Structure of enzymes
How enzymes work
Lock and key mechanism
Biological catalysts made up of proteins, which means they sp…
An enzyme acts on a molecule called the substrate and binds a…
Enzymes increase the rate of reaction by lowering the activat…
The fit between the substrate and the active site of the enzy…
Enzymes
Biological catalysts made up of proteins, which means they sp…
Structure of enzymes
An enzyme acts on a molecule called the substrate and binds a…
41 terms
Biology NCEA Level 2 Genetics
Sex Chromosome
Test Cross
Homozygous
Meiosis
Determines the gender
Test to see if the individuals are homozygous or heterozygous
TT or tt
Cell division in sex cells only
Sex Chromosome
Determines the gender
Test Cross
Test to see if the individuals are homozygous or heterozygous
67 terms
NCEA Level 2 - BIOLOGY, Cells
Activation Energy
Active Site
Active Transport
Adenine
minimum amount of energy required to trigger a chemical react…
the site on an enzyme that attaches to a substrate
movement of molecules through protein channels in the membran…
nitrogen base found in DNA and RNA; pairs with thymine in DNA…
Activation Energy
minimum amount of energy required to trigger a chemical react…
Active Site
the site on an enzyme that attaches to a substrate
67 terms
NCEA Level 2 Cell Biology
activation energy
active site
active transport
Adenine
minimum amount of energy required to trigger a chemical react…
the site on an enzyme that attaches to a substrate
movement of molecules through protein channels in the membran…
nitrogen base found in DNA and RNA; pairs with thymine in DNA…
activation energy
minimum amount of energy required to trigger a chemical react…
active site
the site on an enzyme that attaches to a substrate
35 terms
NCEA level 3 Biology: Human Evolution
Wernicke's area
Broca's area
Nuchal crest
Sagittal crest
Brain area for langauge comprehension
Brain area for speech development
Bony ridge across back of skull where muscles supporting head…
Ridge running lengthwise along top of skull where jaw muscles…
Wernicke's area
Brain area for langauge comprehension
Broca's area
Brain area for speech development
37 terms
NCEA Level 2 Biology - Gene Expression
Nucleic Acids
Nucleotides
DNA structure
Role of DNA
The two nucleic acids are DNA (deoxyribose nucleic acid) and…
Nucleotides are made up of a nitrogenous base, a 5-carbon sug…
DNA is twisted into a double-helix shape. The 5-carbon sugar,…
DNA contains instructions for building the structures and con…
Nucleic Acids
The two nucleic acids are DNA (deoxyribose nucleic acid) and…
Nucleotides
Nucleotides are made up of a nitrogenous base, a 5-carbon sug…
88 terms
NCEA Level 2 Biology - Cells
Enzymes
Structure of enzymes
How enzymes work
Lock and key mechanism
Biological catalysts made up of proteins, which means they sp…
An enzyme acts on a molecule called the substrate and binds a…
Enzymes increase the rate of reaction by lowering the activat…
The fit between the substrate and the active site of the enzy…
Enzymes
Biological catalysts made up of proteins, which means they sp…
Structure of enzymes
An enzyme acts on a molecule called the substrate and binds a…
63 terms
NCEA Level 3 Biology - Human Evolution
Hominid vs Hominin
Primate characteristics
Primate characteristics: skeleton
Primate characteristics: skin
Apes, humans and their recent ancestors are referred to as th…
Primate characteristics are related largely to their arboreal…
- The feet have the pentadactyl pattern of 5 digits... - The fee…
- The skin on the tips of the digits has ridges, increasing s…
Hominid vs Hominin
Apes, humans and their recent ancestors are referred to as th…
Primate characteristics
Primate characteristics are related largely to their arboreal…
Biology NCEA Level 3 2015
endotherm
homeostasis
adrenalin
negative feedback loop
an animal that produces adequate heat to warm its own tissues
the maintenance and control of internal body processes at an…
a hormone that increases cardiac output, constricts blood ves…
a response when something changes to return it to equilibrium…
endotherm
an animal that produces adequate heat to warm its own tissues
homeostasis
the maintenance and control of internal body processes at an…
55 terms
NCEA Level 2 Cell Biology
activation energy
active site
active transport
Adenine
minimum amount of energy required to trigger a chemical react…
the site on an enzyme that attaches to a substrate
movement of molecules through protein channels in the membran…
nitrogen base found in DNA and RNA; pairs with thymine in DNA…
activation energy
minimum amount of energy required to trigger a chemical react…
active site
the site on an enzyme that attaches to a substrate
55 terms
NCEA Level 2 Biology-Cells
Photosynthesis
Light Phase
Calvin Cycle
Factors Affecting Photosynthesis
A series of enzyme-controlled reactions that occur in the chl…
In thylakoids. Chlorophyll absorbs solar energy used: ... -to sp…
In stroma. CO₂ is captured and fixed by enzyme rubisco. The A…
CO₂ levels, factors affecting enzymes, light intensity and wa…
Photosynthesis
A series of enzyme-controlled reactions that occur in the chl…
Light Phase
In thylakoids. Chlorophyll absorbs solar energy used: ... -to sp…
41 terms
Biology NCEA Level 2 Genetics
Sex Chromosome
Test Cross
Homozygous
Meiosis
Determines the gender
Test to see if the individuals are homozygous or heterozygous
TT or tt
Cell division in sex cells only
Sex Chromosome
Determines the gender
Test Cross
Test to see if the individuals are homozygous or heterozygous
40 terms
NCEA Level 2 Biology - Genetic Variation and Change
Gene
Alleles
Meiosis
Crossing over (genetic recombination)
A section of DNA that codes for a particular trait or charact…
Alternative forms of a gene
A type of cell division that occurs in the ovaries and testes…
Where homologous chromosomes line up at the cell equator and…
Gene
A section of DNA that codes for a particular trait or charact…
Alleles
Alternative forms of a gene
31 terms
NCEA Level 3 Biology: Evolution
Evolution
Gene Pool
Stabilising natural selection
Directional natural selection
The change in gene frequencies in a gene pool from one genera…
The sum total of all the genes possessed by all the interbree…
Favours the average phenotype over either extreme
Favours the phenotype of one extreme over the average or othe…
Evolution
The change in gene frequencies in a gene pool from one genera…
Gene Pool
The sum total of all the genes possessed by all the interbree…
28 terms
NCEA Level 1 Science - Biology
Mutation
Cell Division
Genotype
Allele
A random change to the sequence of base pairs on the DNA, whi…
Reproduction of cells through division, either through mitosi…
The combinations of alleles, Tt, BB etc.
Different versions of a gene for a trait (e.g hair colour). A…
Mutation
A random change to the sequence of base pairs on the DNA, whi…
Cell Division
Reproduction of cells through division, either through mitosi…
42 terms
NCEA Level 3 Biology - Speciation
Species
Allopatric speciation
Prezygotic
Postzygotic
A group of organisms that normally interbreed in nature to pr…
Speciation occurring where organisms are initially capable of…
Isolating mechanism that acts to prevent the fusion of gamete…
Isolating mechanism that acts after fertilisation to prevent…
Species
A group of organisms that normally interbreed in nature to pr…
Allopatric speciation
Speciation occurring where organisms are initially capable of…
30 terms
ncea level 3 Biology speciation
Mutation
Gene Flow
Deme
Cline
Origin of all variation in a population.
Change in allele frequency of population.
Local population, limited gene flow.
Gradual variation over geographic range.
Mutation
Origin of all variation in a population.
Gene Flow
Change in allele frequency of population.
14 terms
NCEA LEVEL 2 BIOLOGY DEFINITIONS
Mitochondria
Mitochondria Structure
Plasma Membrane
Endoplasmic Reticulum
Carry out respiration in eukaryotic cells. They are known as…
Rod shaped, doubled membrane organelle which increases SA for…
The outermost layer of a cell. Made up nearly entirely of lip…
A complex network of interconnected flattened tubes called 'c…
Mitochondria
Carry out respiration in eukaryotic cells. They are known as…
Mitochondria Structure
Rod shaped, doubled membrane organelle which increases SA for…
47 terms
Biology NCEA Level 3 Speciation
Variation is caused by
Natural Selection
Environmental selection pressures
Stabilising selection
mutation, sexual reproduction
some combination of alleles produce phenotypes that are more…
Predators, competition, disease, lack of food, light, water,…
Favours the average over the extreme
Variation is caused by
mutation, sexual reproduction
Natural Selection
some combination of alleles produce phenotypes that are more…
71 terms
Ncea Biology Level 3 Evolution
population
gene pool
allele frequency
selection
a group of organisms of the same species occupying a given ar…
all the genes in a population. genes are added by reproductio…
the proportion of an allele in a gene pool compared with all…
a process that results in an allele having a different probab…
population
a group of organisms of the same species occupying a given ar…
gene pool
all the genes in a population. genes are added by reproductio…
44 terms
Science NCEA Level 1 Biology
DNA
Nucleotide
Base sequence /code
Amino Acid
The double-stranded molecule which carries the genetic code i…
The sub-units DNA made up of a sugar ,phosphate and a base .…
The genetic code is determined by the sequence of nucleotide…
Sub-units of polypeptides
DNA
The double-stranded molecule which carries the genetic code i…
Nucleotide
The sub-units DNA made up of a sugar ,phosphate and a base .…
47 terms
NCEA Level 3 Biology- Speciation
Speciation
Species
Allopatric Speciation
Sympatric Speciation
Development of one or more species from an existing species,…
A group of organisms that normally interbreed in nature to pr…
Speciation occurring where organisms are initially capable of…
Speciation occurring where organisms living within the same a…
Speciation
Development of one or more species from an existing species,…
Species
A group of organisms that normally interbreed in nature to pr…
60 terms
Biology Cells NCEA Level 2
Enzymes
Lock and Key
Induced Fit
Enzymes-Temperature
Enzymes are biological catalysts which speed up a reaction wi…
To act as a catalyst the enzyme has a pocket in the structure…
The pocket of the enzyme is not always shaped perfectly for b…
Enzyme function is influenced by temperature and pH, as these…
Enzymes
Enzymes are biological catalysts which speed up a reaction wi…
Lock and Key
To act as a catalyst the enzyme has a pocket in the structure…
1 of 10