GCSE AQA Triple Biology Higher Tier
Paper 2 Exam with correct answers
3 Domain System - correct answer -Dividing organisms into 3 domains:
- Archaea - primitive bacteria which usually live in extreme conditions.
- Bacteria - true bacteria.
- Eukaryota - protists, fungi, plants and animals.
Abiotic Factors Affecting Adaptation - correct answer -- light intensity.
- temperature.
- pH levels.
- CO2 levels.
- O2 levels.
Accommodation - correct answer -The process of changing the shape of the lens to focus on near or
distant objects.
ADH - correct answer -This is a hormone which controls water levels in the body. It is released by the
pituitary gland when the blood is too concentrated. It caused the tubules to reabsorb more water back
into the blood.
Adrenaline - correct answer -This is produced by the adrenal glands in times of fear or stress to increase
the bodies heart rate.
Allele - correct answer -Different forms of a gene.
Apex Predators - correct answer -Carnivores with no predators that are top of the food chain.
Artificial Ways of Cloning - correct answer -- cuttings
- tissue culture
,Asexual Reproduction - correct answer -This involves only one parent and no fusion of gametes,
meaning no mixing of genetic information so the production of a genetically identical offspring. It uses
mitosis.
Auxins - correct answer -Plant hormones that lead to phototropism by elongating the dark side of the
plant.
Binomial System - correct answer -Identifying organisms by their genus and species names.
Biodiversity - correct answer -The variety of all the different species of organisms on earth. When this is
high it helps ecosystems to become stable. This is affected by:
- availability of water.
- temperature.
- atmospheric gases.
- etc.
Biotechnology - correct answer -This allows microorganisms to be grown in large quantities for food.
They are grown in fermenters where conditions are controlled carefully.
Biotic Factors Affecting Adaptation - correct answer -- availability of food.
- new predators arriving.
- new pathogens and diseases.
- one species outcompeting another.
Causes of Loss in Biomass - correct answer -- faeces, urine and excretion
- respiration.
This usually means there are fewer organisms in the ecosystem.
Cerebellum - correct answer -coordinates movement and balance
, cerebral cortex - correct answer -responsible for consciousness, intelligence, memory and language.
Classification - correct answer -The process of grouping things based on their structure & characteristics.
Clone - correct answer -Genetically identical individuals that are produced naturally by asexual
reproduction.
Conserving Biodiversity - correct answer -- setting up breeding programs for endangered species.
- protecting rare habitats.
- reducing deforestation and carbon emissions.
- recycling resources.
Darwin's Theory of Evolution - correct answer -Those individuals that are best adapted to the
environment will survive and reproduce; those traits that help them, become more common in a species
and maladaptive traits die out. This is called natural Selection.
Deamination - correct answer -The process where excess amino acids are converted into ammonia.
Ammonia is toxic so is immediately converted into urea and sent to the kidneys for safe excretion.
Decomposers - correct answer -These are the organisms that break down the waste products or dead
material from other organisms secreted by enzymes. They are a type of bacteria and fungi and they
need oxygen, moisture, a suitable temperature and pH.
Deforestation - correct answer -The cutting down of trees and the destruction of forests.
Dialysis - correct answer -A machine that takes over the roles of the kidneys when someone's kidney
fails. It is used to remove the waste products from the blood 3 times a week.
Different Fossil Formations - correct answer -- hard parts of animals have not decayed.
- parts of animals have not decayed as conditions needed were absent.
Paper 2 Exam with correct answers
3 Domain System - correct answer -Dividing organisms into 3 domains:
- Archaea - primitive bacteria which usually live in extreme conditions.
- Bacteria - true bacteria.
- Eukaryota - protists, fungi, plants and animals.
Abiotic Factors Affecting Adaptation - correct answer -- light intensity.
- temperature.
- pH levels.
- CO2 levels.
- O2 levels.
Accommodation - correct answer -The process of changing the shape of the lens to focus on near or
distant objects.
ADH - correct answer -This is a hormone which controls water levels in the body. It is released by the
pituitary gland when the blood is too concentrated. It caused the tubules to reabsorb more water back
into the blood.
Adrenaline - correct answer -This is produced by the adrenal glands in times of fear or stress to increase
the bodies heart rate.
Allele - correct answer -Different forms of a gene.
Apex Predators - correct answer -Carnivores with no predators that are top of the food chain.
Artificial Ways of Cloning - correct answer -- cuttings
- tissue culture
,Asexual Reproduction - correct answer -This involves only one parent and no fusion of gametes,
meaning no mixing of genetic information so the production of a genetically identical offspring. It uses
mitosis.
Auxins - correct answer -Plant hormones that lead to phototropism by elongating the dark side of the
plant.
Binomial System - correct answer -Identifying organisms by their genus and species names.
Biodiversity - correct answer -The variety of all the different species of organisms on earth. When this is
high it helps ecosystems to become stable. This is affected by:
- availability of water.
- temperature.
- atmospheric gases.
- etc.
Biotechnology - correct answer -This allows microorganisms to be grown in large quantities for food.
They are grown in fermenters where conditions are controlled carefully.
Biotic Factors Affecting Adaptation - correct answer -- availability of food.
- new predators arriving.
- new pathogens and diseases.
- one species outcompeting another.
Causes of Loss in Biomass - correct answer -- faeces, urine and excretion
- respiration.
This usually means there are fewer organisms in the ecosystem.
Cerebellum - correct answer -coordinates movement and balance
, cerebral cortex - correct answer -responsible for consciousness, intelligence, memory and language.
Classification - correct answer -The process of grouping things based on their structure & characteristics.
Clone - correct answer -Genetically identical individuals that are produced naturally by asexual
reproduction.
Conserving Biodiversity - correct answer -- setting up breeding programs for endangered species.
- protecting rare habitats.
- reducing deforestation and carbon emissions.
- recycling resources.
Darwin's Theory of Evolution - correct answer -Those individuals that are best adapted to the
environment will survive and reproduce; those traits that help them, become more common in a species
and maladaptive traits die out. This is called natural Selection.
Deamination - correct answer -The process where excess amino acids are converted into ammonia.
Ammonia is toxic so is immediately converted into urea and sent to the kidneys for safe excretion.
Decomposers - correct answer -These are the organisms that break down the waste products or dead
material from other organisms secreted by enzymes. They are a type of bacteria and fungi and they
need oxygen, moisture, a suitable temperature and pH.
Deforestation - correct answer -The cutting down of trees and the destruction of forests.
Dialysis - correct answer -A machine that takes over the roles of the kidneys when someone's kidney
fails. It is used to remove the waste products from the blood 3 times a week.
Different Fossil Formations - correct answer -- hard parts of animals have not decayed.
- parts of animals have not decayed as conditions needed were absent.
