Term
| Where does photosynthesis take place? |
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Definition
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Term
| Name 4 limiting factors for photosynthesis |
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Definition
Light intensity
Carbon dioxide concentration
Amount of chlorophyll
Temperature |
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Term
| Is photosynthesis an exo- or endo- thermic reaction |
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Definition
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Term
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Definition
| A chemical process that releases energy from the chemical store in glucose |
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Term
| Where does respiration take place? |
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Definition
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Term
| Is respiration an exo- or endo- thermic reaction |
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Definition
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Term
| What is the chemical equation for photosynthesis? |
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Definition
| carbon dioxide + water -> glucose + oxygen |
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Term
| What is the chemical equation for aerobic respiration? |
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Definition
| glucose + oxygen -> carbon dioxide + water |
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Term
| Which living organisms does respiration occur in? |
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Definition
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|
Term
| Which living organisms does photosynthesis occur in? |
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Definition
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Term
| When does anaerobic respiration occur? |
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Definition
| When there is not enough oxygen available |
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Term
| What is the chemical equation for anaerobic respiration in muscles? |
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Definition
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Term
| What is the chemical equation for anaerobic respiration in microbes? |
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Definition
| glucose -> ethanol + carbon dioxide |
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Term
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Definition
| The amount of extra oxygen the body needs, after exercise, to remove lactic acid from cells |
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Term
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Definition
| A community of living organisms and its habitat |
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Term
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Definition
| The place where an organism lives |
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Term
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Definition
| All the populations of different organisms that live together in a habitat |
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Term
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Definition
| A measure of the variety of different species in an ecosystem |
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Term
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Definition
| Something that is living, such as a predator or disease |
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Term
| What is an abiotic factor? |
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Definition
| Something that is not living such as temperature or carbon dioxide concentration |
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Term
| What does random sampling measure? |
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Definition
| Distribution of organisms over a large area |
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Term
| What does systematic sampling show? |
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Definition
| The change in distribution or organisms across one or more habitats |
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Term
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Definition
| The position of a species in a food chain |
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Term
| List the different trophic levels |
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Definition
Producers
Primary consumers
Secondary consumers
Tertiary consumers
Decomposers |
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Term
| What type of organisms are on the 1st trophic level? |
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Definition
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Term
| What type of organisms are on the 2nd trophic level? |
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Definition
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Term
| What type of organisms are on the 3rd and 4th trophic levels? |
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Definition
| Predators; they may be carnivores or omnivores |
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Term
| What is an apex predator? |
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Definition
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Term
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Definition
| The dry mass of living material |
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Term
| Roughly how much biomass is transferred to the next trophic level? |
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Definition
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Term
| What is the term for when food is not absorbed and passes out of the body as faeces? |
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Definition
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Term
| What is the term for when waste products from chemical processes are removed from the body? |
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Definition
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Term
| How is biomass lost between trophic levels? |
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Definition
Egestion
Excretion of carbon dioxide
Excretion of water
Excretion of urea |
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Term
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Definition
| Differences between individual organisms |
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Term
| What are the causes of variation? |
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Definition
Genetic causes
Environmental causes
Both |
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Term
| Give 4 things that animals compete for. |
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Definition
Food
Water
Sexual mates
Territory |
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Term
| Give 4 things that plants compete for. |
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Definition
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Term
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Definition
| Organisms that can breed to produce fertile offspring are the same species |
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Term
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Definition
| A gradual change in a species over many generations |
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Term
| What is natural selection? |
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Definition
| Natural selection is when variation means some individuals are more likely to survive and reproduce |
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Term
| Give 3 reasons why Darwin's theory of evolution by natural selection was only accepted slowly. |
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Definition
Conflict with religious beliefs
Insufficient evidence
Unknown mechanism for variation and inheritance |
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Term
| What was Lamarck's theory? |
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Definition
| Changes in an organism that occur in its lifetime, can be inherited by offspring |
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Term
| What is selective breeding? |
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Definition
| When humans choose individuals to reproduce to select desirable characteristics |
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Term
| What is genetic engineering? |
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Definition
| When humans modify the genome of an individual organism by introducing a gene from another organism |
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Term
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Definition
| Producing genetically identical individuals |
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Term
| List 4 methods of cloning. |
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Definition
Taking cuttings of plants
Tissue culture from plants
Embryo transplants in animals
Adult cell cloning of animals |
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Term
| Place these in order from the one that takes the most generations to the one that only takes 1 generation. |
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Definition
Evolution by natural selection
Selective breeding
Genetic engineering |
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Term
| State 3 processes that return carbon dioxide from plants and algae to the atmosphere. |
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Definition
Respiration
Combustion
Decomposition |
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