AQA A LEVEL BIOLOGY
the krebs cycle takes place in the _______ of the ___________ - Correct Answers-matrix
mitochondria
epistasis - Correct Answers-arises when the allele of one gene affects or masks the expression
of another in the phenotype
autosome - Correct Answers-a chromosome that is not a sex chromosome
biodiversity - Correct Answers-the range and variety of genes, species and habitats within a
particular region
biomass - Correct Answers-the total mass of living material, normally measured in a specific
area over a given period of time
intraspecific competition - Correct Answers-competition between organisms of the same
species
interspecific competition - Correct Answers-competition between organisms of different
species
krebs cycle - Correct Answers-series of aerobic biochemical reactions in the matrix of the
mitochondria of most eukaryotic cells by which energy is obtained through the oxidation of
acetylcoenzyme A produced from the breakdown of glucose
meiosis - Correct Answers-the type of nuclear division in which the number of chromosomes is
halved
mutation - Correct Answers-a sudden change in the amount or the arrangement of the genetic
material in the cell
NADP - Correct Answers-a molecule that carries electrons produced in the light dependent
reaction of photosynthesis
selection - Correct Answers-process that results in the best-adapted individuals in a population
surviving to breed and so pass their favourable alleles to the next generation
the krebs cycle takes place in the _______ of the ___________ - Correct Answers-matrix
mitochondria
epistasis - Correct Answers-arises when the allele of one gene affects or masks the expression
of another in the phenotype
autosome - Correct Answers-a chromosome that is not a sex chromosome
biodiversity - Correct Answers-the range and variety of genes, species and habitats within a
particular region
biomass - Correct Answers-the total mass of living material, normally measured in a specific
area over a given period of time
intraspecific competition - Correct Answers-competition between organisms of the same
species
interspecific competition - Correct Answers-competition between organisms of different
species
krebs cycle - Correct Answers-series of aerobic biochemical reactions in the matrix of the
mitochondria of most eukaryotic cells by which energy is obtained through the oxidation of
acetylcoenzyme A produced from the breakdown of glucose
meiosis - Correct Answers-the type of nuclear division in which the number of chromosomes is
halved
mutation - Correct Answers-a sudden change in the amount or the arrangement of the genetic
material in the cell
NADP - Correct Answers-a molecule that carries electrons produced in the light dependent
reaction of photosynthesis
selection - Correct Answers-process that results in the best-adapted individuals in a population
surviving to breed and so pass their favourable alleles to the next generation
