Keywords

Question 1

Organic

Answer 1

A compound that contains carbon

Question 2

Inorganic

Answer 2

A compound which does not contain carbon

Question 3

Co-enzyme

Answer 3

Non-protein molecules which help enzymes to function by transferring other molecules around.

Question 4

Phosphorylation

Answer 4

Adding a phosphate

Question 5

Photophosphorylation

Answer 5

Using light energy to add a phosphate

Question 6

Photolysis

Answer 6

Using light energy to split a molecule

Question 7

Ecosystem

Answer 7

All the organisms in a particular area and all the non-living (abiotic) factors.

Question 8

Population

Answer 8

All the organisms of a single species in a habitat

Question 9

Community

Answer 9

All the organisms of all the different species in a particular habitat

Question 10

Habitat

Answer 10

The place where an organism lives

Question 11

Niche

Answer 11

The role of a species in an ecosystem and its abiotic and biotic interactions.

Question 12

Trophic Level

Answer 12

Each stage of the food chain

Question 13

Abundance

Answer 13

The number of individuals of one species in a particular area.

Question 14

Distribution

Answer 14

Where a species is within a particular area

Question 15

Abiotic Factors

Answer 15

The non-living feature of an ecosystem e.g temperature

Question 16

Biotic Factors

Answer 16

The living features of the ecosystem e.g predators.

Question 17

Gross Primary Productivity

Answer 17

The total amount of energy made by producers.

Question 18

Succession

Answer 18

A Sequence of changes in a community/species in a given place over a period of time.

Question 19

Climax community

Answer 19

The final stage of succession where the community is self-sustaining and stable.

Question 20

Climatic Climax

Answer 20

Climax community for a particular climate.

Question 21

Plagioclimax/Deflected succession

Answer 21

Succession of climax community is stopped artificially.

Question 22

Species

Answer 22

Organisms that can reproduce to produce fertile offspring

Question 23

Gene Pool

Answer 23

All the alleles present in a population

Question 24

Allele Frequency

Answer 24

How common an allele is in a population

Question 25

Evolution

Answer 25

A change in allele frequency over time

Question 26

Differential Reproductive Success

Answer 26

organisms with a phenotype better adapted to their environment have a selective advantage and are more likely to survive and reproduce (vice versa)

Question 27

Speciation

Answer 27

Process of forming a new species

Question 28

Intraspecific Variation

Answer 28

Individuals of the same species have the same genes but different alleles which causes variation in their phenotype.

Question 29

Interspecific Variation

Answer 29

Individuals of different species have different genes an live in different environments which causes variation in phenotype.

Question 30

Continuous Variation

Answer 30

Variation is smooth and continuous it is not discrete and is represented on a line graph.

Question 31

Discontinuous Variation

Answer 31

Individuals fall into discrete groups with no intermediates and is represented on a bar chart. The variation is controlled by a single gene with few alleles.

Question 32

Anthropogenic

Answer 32

Caused by humans

Question 33

Climate change

Answer 33

Change to long term climate patterns

Question 34

Global warming

Answer 34

The increase in the Earth's mean temperature.

Question 35

Temperature Coefficient (Q10)

Answer 35

Measures the amount of change to a biological reaction caused by increasing the temperature by 10 degrees.

Question 36

Species Frequency

Answer 36

How often a species is found in each square of a quadrant

Question 37

Gene Mutation

Answer 37

Change to the base sequence of DNA during replication

Question 38

Diploid

Answer 38

An organism with a pair of homologous chromosomes, it has two alleles of each gene

Question 39

Gene

Answer 39

A sequence of DNA that codes for a protein

Question 40

Allele

Answer 40

Different version of a gene

Question 41

Genotype

Answer 41

The combination of alleles an organism has

Question 42

Phenotype

Answer 42

The characteristics displayed by an organism

Question 43

Dominant allele

Answer 43

An allele that is always expressed in the phenotype

Question 44

Recessive allele

Answer 44

An allele that will only be expressed when it is homozygous

Question 45

Incomplete dominance

Answer 45

When the trait from the dominant allele isn't completely shown over the trait produced by the recessive allele.

Question 46

Homozygote

Answer 46

An organism that carries two copies of the same allele for a certain characteristic

Question 47

Heterozygote

Answer 47

An organism that carries two different alleles for a certain characteristic

Question 48

Sex linkage

Answer 48

the expression of alleles located on the sex chromosomes depends on the sex of the individual

Question 49

Autosome

Answer 49

All the non-sex chromosomes

Question 50

Stem Cell

Answer 50

cells that are capable of dividing to differentiate into different types of cells. Can divide for all of the organisms life time.

Question 51

Totipotent

Answer 51

Stem cell can differentiate into any type of specialised cells. Found in very early embryo and can form placental cells.

Question 52

Pluripotent

Answer 52

Stem cells can differentiate into many types of specialised cells, but cannot form placental cells.

Question 53

Biodiversity

Answer 53

the variety of organisms in an area

Question 54

Species Richness

Answer 54

The number of different species in a habitat at one time

Question 55

Endemic Species

Answer 55

A species that only live in one geographical area

Question 56

Heterozygosity Index

Answer 56

number of heterozygotes/number of individuals in the population