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AQA GCSE BIOLOGY EXAMS. QUESTIONS WITH 100% CORRECT ANSWERS.
THIS EXAMS COVERS AQA GCSE AND AQA A LEVEL BIOLOGY EXAMS PAPERS 1 AND 2.
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- AQA A LEVEL BIOLOGY EXAM. QUESTIONS WITH ANSWERS. • Exam (elaborations)
- AQA A LEVEL BIOLOGY EXAM. QUESTIONS AND ANSWERS. • Exam (elaborations)
- AQA A LEVEL BIOLOGY EXAM. QUESTIONS WITH ANSWERS. • Exam (elaborations)
- AQA GCSE BIOLOGY PAPER 1 EXAM. QUESTIONS WITH 100% CORRECT ANSWERS. • Exam (elaborations)
- AQA GCSE BIOLOGY PAPER 1 EXAM. QUESTIONS WITH 100% CORRECT ANSWERS. • Exam (elaborations)
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THIS EXAMS COVERS AQA GCSE AND AQA A LEVEL BIOLOGY EXAMS PAPERS 1 AND 2.
AQA GCSE BIOLOGY PAPER 2 EXAM. QUESTIONS WITH 100% CORRECT ANSWERS.
Write a paragraph using the terms probability and chance if the different or association from stats results at P 0.001 has a calculated value greater than the criterial value. The probability of the difference or association being due to chance is less than 0.1% ; Therefore, there is a significant difference or association between the two means/variables Describe how you would calculate dry mass Heat at 100°C / heat to temp to evaporate water; Weigh and heat until no further change in ma...
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- • 35 pages •
Write a paragraph using the terms probability and chance if the different or association from stats results at P 0.001 has a calculated value greater than the criterial value. The probability of the difference or association being due to chance is less than 0.1% ; Therefore, there is a significant difference or association between the two means/variables Describe how you would calculate dry mass Heat at 100°C / heat to temp to evaporate water; Weigh and heat until no further change in ma...
AQA GCSE BIOLOGY PAPER 2 EXAM. QUESTIONS WITH 100% CORRECT ANSWERS.
What are photosynthetic organisms? Producers of biomass for life on Earth What is a food chain? A feeding relationship within a community What is a producer? An organism that synthesises molecules Give an example of a producer A green plan or alga that make glucose by photosynthesis What is a primary consumer? An organism that eats a producer What is a secondary consumer? An organism that eats a primary consumer What is a tertiary consumer? An organism that e...
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What are photosynthetic organisms? Producers of biomass for life on Earth What is a food chain? A feeding relationship within a community What is a producer? An organism that synthesises molecules Give an example of a producer A green plan or alga that make glucose by photosynthesis What is a primary consumer? An organism that eats a producer What is a secondary consumer? An organism that eats a primary consumer What is a tertiary consumer? An organism that e...
AQA GCSE BIOLOGY PAPER 2 EXAM. QUESTIONS WITH 100% CORRECT ANSWERS.
What is biodiversity? The variety of species of organisms that exist in one ecosystem. How does human development impact biodiversity? It usually results in reduced biodiversity due to habitat destruction. What is one impact of land development on ecosystems? Destruction of habitats, such as Peat Bogs, which reduces biodiversity. What is the effect of deforestation on ecosystems? It reduces biodiversity and releases CO2 when trees are burned. What does a pyramid of biomas...
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What is biodiversity? The variety of species of organisms that exist in one ecosystem. How does human development impact biodiversity? It usually results in reduced biodiversity due to habitat destruction. What is one impact of land development on ecosystems? Destruction of habitats, such as Peat Bogs, which reduces biodiversity. What is the effect of deforestation on ecosystems? It reduces biodiversity and releases CO2 when trees are burned. What does a pyramid of biomas...
AQA GCSE BIOLOGY EXAM. QUESTINS WITH 100% CORRECT ANSWERS.
Electron Microscope A microscope that fires electrons at objects and then creates a very detailed image. What 3 organelles do plant cells have that animal cells don't? what do they do? - Chloroplast - absorb light for photosynthesis - vacuole - stores cell sap - structure and support (keeps cell rigid) - Cell wall - made of cellulose - structure and support What are 4 key features of bacterial cells? - Small size - Cell wall - Cell membrane - loop of DNA (no nucleus) ...
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Electron Microscope A microscope that fires electrons at objects and then creates a very detailed image. What 3 organelles do plant cells have that animal cells don't? what do they do? - Chloroplast - absorb light for photosynthesis - vacuole - stores cell sap - structure and support (keeps cell rigid) - Cell wall - made of cellulose - structure and support What are 4 key features of bacterial cells? - Small size - Cell wall - Cell membrane - loop of DNA (no nucleus) ...
AQA GCSE BIOLOGY PAPER 1 EXAM. QUESTIONS WITH 100% CORRECT ANSWERS.
What happens in photosynthesis and is it a endo or exothermic reaction Taking energy from light and locking it up in glucose. Endothermic reaction- takes in energy Requirements for photosynthesis Chlorophyll (the green pigment in leaves) Water Carbon dioxide Sunlight Effect of co2 on rate of photosynthesis (what it looks like on graph) Co2 increases rate of photosynthesis increases but only up to a point, then curves and straight Light intensity on photosynthesis (what it lo...
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What happens in photosynthesis and is it a endo or exothermic reaction Taking energy from light and locking it up in glucose. Endothermic reaction- takes in energy Requirements for photosynthesis Chlorophyll (the green pigment in leaves) Water Carbon dioxide Sunlight Effect of co2 on rate of photosynthesis (what it looks like on graph) Co2 increases rate of photosynthesis increases but only up to a point, then curves and straight Light intensity on photosynthesis (what it lo...
AQA GCSE BIOLOGY PAPER 1 EXAM. QUESTIONS WITH 100% CORRECT ANSWERS.
What are antibiotics? Drugs that kill or prevent the growth of bacteria without killing healthy body cells What is the problems with antibiotics? Bacteria can mutate and become resistant to an antibiotic How do bacteria make us feel ill? Producing toxins that damage cells and tissues Digitalis Used to treat heart conditions Developed from a chemical found in foxgloves What are monoclonal antibodies? Produced from lots of clones of a single white blood cell They're a...
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What are antibiotics? Drugs that kill or prevent the growth of bacteria without killing healthy body cells What is the problems with antibiotics? Bacteria can mutate and become resistant to an antibiotic How do bacteria make us feel ill? Producing toxins that damage cells and tissues Digitalis Used to treat heart conditions Developed from a chemical found in foxgloves What are monoclonal antibodies? Produced from lots of clones of a single white blood cell They're a...
AQA GCSE BIOLOGY PAPER 1 EXAM. QUESTIONS WITH 100% CORRECT ANSWERS.
Is respiration endothermic or exothermic? Exothermic - transfers energy to the environment How do organisms use the energy transferred by respiration? 1) To build up larger molecules from smaller ones e.g. proteins from amino acids 2) In animals, it's used to allow the muscles to contract 3) In mammals and birds, the energy is used to keep their body temperature steady in colder surroundings Aerobic respiration Respiration using oxygen Goes on constantly in plants and animals ...
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Is respiration endothermic or exothermic? Exothermic - transfers energy to the environment How do organisms use the energy transferred by respiration? 1) To build up larger molecules from smaller ones e.g. proteins from amino acids 2) In animals, it's used to allow the muscles to contract 3) In mammals and birds, the energy is used to keep their body temperature steady in colder surroundings Aerobic respiration Respiration using oxygen Goes on constantly in plants and animals ...
AQA CHEMISTRY PAPER 1 EXAM. QUESTIONS WITH 100% CORRECT ANSWERS.
Carbon Element which is more reactive than many metals and so can be used to extract them from their ores Sodium hydroxide + sulfuric acid --> Sodium sulfate + water Sodium carbonate + nitric acid Sodium nitrate + water + carbon dioxide Substances have high melting points because.. There are strong bonds between their particles Substances DO conduct electricity if... they contain free moving electrons or ions Metals are malleable and ductile AND graphite is soft ...
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Carbon Element which is more reactive than many metals and so can be used to extract them from their ores Sodium hydroxide + sulfuric acid --> Sodium sulfate + water Sodium carbonate + nitric acid Sodium nitrate + water + carbon dioxide Substances have high melting points because.. There are strong bonds between their particles Substances DO conduct electricity if... they contain free moving electrons or ions Metals are malleable and ductile AND graphite is soft ...
AQA GCSE CHEMISTRY PAPER 1 EXAM. QUESTIONS WITH 100% CORRECT ANSWERS.
What happens in an electrochemical cell? The chemical reactions between the electrodes & the electrolyte set up a charge difference between the electrodes If the electrodes are connected by a wire, the charge is able to flow & electricity is produced A voltmeter can be connected to the circuit to measure the voltage of the cell What causes the charge difference (voltage) in an electrochemical cell? Different metals react differently with the same electrolyte What affects the voltag...
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- • 51 pages •
What happens in an electrochemical cell? The chemical reactions between the electrodes & the electrolyte set up a charge difference between the electrodes If the electrodes are connected by a wire, the charge is able to flow & electricity is produced A voltmeter can be connected to the circuit to measure the voltage of the cell What causes the charge difference (voltage) in an electrochemical cell? Different metals react differently with the same electrolyte What affects the voltag...
NSG 4100 / NSG4100 NURSING PRACTICE ADULT HEALTH EXAM 2. QUESTIONS AND ANSWERS.
NUR 211 / NUR211 LIFESPAN FINAL EXAM. QUESTIONS WITH 100% VERIFIED ANSWERS.
NUR 211 / NUR211 LIFESPAN FINAL EXAM. QUESTIONS WITH 100% VERIFIED ANSWERS.
NUR 211 / NUR211 LIFESPAN FINAL EXAM. QUESTIONS WITH 100% VERIFIED ANSWERS.
NURS 110 / NURS110 MIDTERM EXAM. QUESTIONS AND ANSWERS.
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